Opsmas 2025 Day 4: loopy & billions
TOC:
loopy event loop
To advance my career the most and the fastest, I only focus on the hottest in-demand tech, so here’s another event loop.
Why another event loop? I don’t really like libuv or libevent for various reasons, so, when not liking things, make your own. This project started maybe 10 years ago as a multi-platform event loop abstraction and features continued getting added over time. Recently added even more features throughout this year and… here we are.
One useful part about loopy is it builds on many of the efficient datastructures already in datakit for even better event loop memory efficiency and well-tested, proven interfaces to more advanced organizational patterns.
loopy:
there’s like a usage guide and architecture details.
for a little extra bam you can even peruse some advanced features. welcome to the future.
Standard Stuff Section
Core Event Loop
- Efficient multiplexing with platform-optimal backends:
- Linux: epoll (default) or io_uring (opt-in) for superior performance
- macOS/FreeBSD: kqueue for file and network events
- Flexible event model: File descriptor readiness, timers, or hybrid processing
- Before/after sleep callbacks for custom event processing
- Configurable concurrency: Resize max file descriptors at runtime
Networking
- TCP streams with full duplex I/O, connect, bind, listen, and accept
- UDP sockets for connectionless datagram communication
- TLS/SSL support with automatic encryption/decryption
- DNS resolution with async address lookups
- Connection pooling for efficient resource reuse
- Low-level network utilities with helper functions for TCP/Unix sockets
- Full IPv4/IPv6 support with unified address parsing and formatting
- File descriptor passing for advanced IPC patterns
Timers
- One-shot timers that fire once and self-cleanup
- Periodic timers with flexible interval control
- High-resolution timing in microseconds, milliseconds, or seconds
- Efficient timer wheel for minimal overhead with many concurrent timers
Filesystem Operations
- Non-blocking file I/O via thread pool integration
- File watching with change notifications
- Memory mapping with async page loading
- File locking with blocking and non-blocking modes
- File polling for kqueue/epoll-based monitoring
- Comprehensive operations: open, close, read, write, stat, mkdir, rmdir, unlink, chmod, and more
Processes & Pipes
- Process spawning and lifecycle management
- Pipe creation for inter-process communication
- Stream pipes with full async I/O integration
- Bidirectional data transfer between processes
Pub/Sub & Clustering
- Pub/Sub system for intra-process event distribution
- Cluster registry for distributed coordination
Threading & Concurrency
- Thread-safe async wake-up from any thread or signal handler
- Work queue for offloading CPU-intensive tasks
- Concurrency pool for managing worker threads
- Thread-safe async callbacks with proper event loop integration
Utilities & Monitoring
- Signal handling with async-signal-safe callbacks
- Idle detection for low-activity optimization
- TTY operations for terminal control
- Random number generation with cryptographic and performance variants
- Rate limiting for traffic control
- Metrics collection for performance monitoring
- Process priority control (nice) for resource management
Advanced Features
- User data pointers for easy callback context management
- Stack allocation option for embedded systems or performance-critical code
- Error propagation with human-readable error messages
- Type-safe opaque handles to prevent misuse
Core Modules
- loopy.h - Event loop creation, file descriptor registration, timers
- loopyTimer.h - High-level timer abstraction (one-shot and periodic)
Networking
- loopyStream.h - Unified TCP/pipe stream abstraction with full async I/O
- loopyNet.h - Low-level networking utilities and helpers
- loopyUDP.h - UDP socket support for datagram communication
- loopyTLS.h - TLS/SSL encryption and secure connections
- loopyDNS.h - Asynchronous DNS resolution
- loopyConnPool.h - Connection pooling and reuse
Filesystem
- loopyFS.h - Async file operations (open, read, write, stat, etc.)
- loopyFSPoll.h - File system polling with change notifications
- loopyWatch.h - Recursive directory watching
- loopyMmap.h - Memory-mapped file operations
- loopyFlock.h - File locking (blocking and non-blocking)
IPC & Processes
- loopyPipe.h - Pipe creation and management
- loopyProcess.h - Process spawning and lifecycle
- loopyChannel.h - Typed message passing between processes
- loopyPubSub.h - Publish/subscribe for intra-process events
Async & Threading
- loopyAsync.h - Thread-safe event loop wake-up from any thread
- loopyWork.h - Offload CPU-intensive work to thread pool
- loopyConcurrencyPool.h - Manage worker thread pools
Utilities
- loopySignal.h - Async-signal-safe signal handling
- loopyIdle.h - Idle event detection
- loopyTTY.h - Terminal control operations
- loopyRandom.h - Random number generation
- loopyRateLimit.h - Traffic rate limiting
- loopyMetrics.h - Performance metrics collection
- loopyNice.h - Process priority control
Advanced
- loopyClusterRegistry.h - Distributed coordination
- loopyIoUringNet.h - Direct io_uring networking (Linux only)
- loopyIoUringFS.h - Direct io_uring filesystem (Linux only)
- loopySys.h - System-level utilities
tests
we even have more tests than you can shake 300+ sticks at
$ ctest -j32
Start 1: loopy_all_tests
Start 2: test_loop_create_delete
Start 3: test_loop_stack_allocated
Start 4: test_loop_resize
Start 5: test_adapter_name
Start 6: test_register_read
Start 7: test_register_write
Start 8: test_register_read_write
Start 9: test_unregister_read
Start 10: test_unregister_write
Start 11: test_unregister_all
Start 12: test_register_write_if_none_exists
Start 13: test_auto_resize
Start 14: test_maxfd_tracking
Start 15: test_timer_registration
Start 16: test_event_processing
Start 17: test_sleep_callbacks
Start 18: test_stop
Start 19: test_net_tcp4_server
Start 21: test_net_nonblock
Start 22: test_net_nodelay
Start 23: test_net_keepalive
Start 24: test_net_resolve
Start 25: test_net_format_addr
Start 29: test_send_timeout
Start 30: test_nice_create_delete
Start 31: test_nice_pipe
Start 32: test_nice_socketpair
Start 34: test_heap_create_delete
Start 35: test_heap_stack_allocated
Start 36: test_heap_insert_peek
Start 37: test_heap_pop
1/365 Test #10: test_unregister_write ..................... Passed 0.21 sec
2/365 Test #7: test_register_write ....................... Passed 0.21 sec
3/365 Test #6: test_register_read ........................ Passed 0.21 sec
4/365 Test #5: test_adapter_name ......................... Passed 0.21 sec
5/365 Test #34: test_heap_create_delete ................... Passed 0.20 sec
6/365 Test #8: test_register_read_write .................. Passed 0.21 sec
Start 38: test_heap_remove
Start 39: test_heap_contains
Start 40: test_heap_clear
Start 41: test_heap_reserve
Start 42: test_heap_auto_grow
Start 43: test_heap_large_fds
7/365 Test #3: test_loop_stack_allocated ................. Passed 0.22 sec
Start 44: test_heap_duplicates
8/365 Test #9: test_unregister_read ...................... Passed 0.22 sec
9/365 Test #15: test_timer_registration ................... Passed 0.22 sec
10/365 Test #2: test_loop_create_delete ................... Passed 0.22 sec
11/365 Test #31: test_nice_pipe ............................ Passed 0.21 sec
12/365 Test #18: test_stop ................................. Passed 0.22 sec
13/365 Test #4: test_loop_resize .......................... Passed 0.22 sec
14/365 Test #12: test_register_write_if_none_exists ........ Passed 0.22 sec
15/365 Test #24: test_net_resolve .......................... Passed 0.22 sec
16/365 Test #35: test_heap_stack_allocated ................. Passed 0.21 sec
17/365 Test #16: test_event_processing ..................... Passed 0.22 sec
18/365 Test #32: test_nice_socketpair ...................... Passed 0.21 sec
19/365 Test #29: test_send_timeout ......................... Passed 0.22 sec
20/365 Test #13: test_auto_resize .......................... Passed 0.22 sec
21/365 Test #30: test_nice_create_delete ................... Passed 0.22 sec
22/365 Test #14: test_maxfd_tracking ....................... Passed 0.22 sec
23/365 Test #37: test_heap_pop ............................. Passed 0.21 sec
24/365 Test #25: test_net_format_addr ...................... Passed 0.22 sec
25/365 Test #23: test_net_keepalive ........................ Passed 0.22 sec
26/365 Test #17: test_sleep_callbacks ...................... Passed 0.22 sec
27/365 Test #11: test_unregister_all ....................... Passed 0.22 sec
28/365 Test #36: test_heap_insert_peek ..................... Passed 0.21 sec
29/365 Test #19: test_net_tcp4_server ...................... Passed 0.22 sec
30/365 Test #22: test_net_nodelay .......................... Passed 0.22 sec
31/365 Test #21: test_net_nonblock ......................... Passed 0.22 sec
32/365 Test #38: test_heap_remove .......................... Passed 0.01 sec
33/365 Test #39: test_heap_contains ........................ Passed 0.01 sec
Start 20: test_net_tcp6_server
Start 45: test_heap_empty_operations
Start 46: test_heap_null_safety
Start 47: test_heap_single_element
Start 48: test_heap_remove_last
Start 49: test_heap_stress
Start 50: test_heap_loopy_maxfd_integration
Start 51: test_null_handling
Start 52: test_unregister_nonexistent
Start 53: test_get_events_invalid_fd
Start 54: test_dns_create_delete
Start 55: test_dns_create_default_config
Start 56: test_dns_status_strings
Start 57: test_dns_resolve_localhost
Start 58: test_dns_cancel
Start 59: test_dns_cancel_all
Start 60: test_dns_null_safety
Start 61: test_dns_reverse_lookup
Start 62: test_dns_reverse_null_safety
Start 63: test_signal_create_delete
Start 64: test_signal_single_handler
Start 67: test_signal_names
Start 68: test_signal_invalid_signum
Start 69: test_signal_null_safety
Start 71: test_async_create_delete
Start 72: test_async_send_same_thread
34/365 Test #40: test_heap_clear ........................... Passed 0.02 sec
Start 73: test_async_send_from_thread
35/365 Test #41: test_heap_reserve ......................... Passed 0.02 sec
36/365 Test #42: test_heap_auto_grow ....................... Passed 0.02 sec
37/365 Test #43: test_heap_large_fds ....................... Passed 0.02 sec
38/365 Test #44: test_heap_duplicates ...................... Passed 0.02 sec
39/365 Test #20: test_net_tcp6_server ...................... Passed 0.01 sec
40/365 Test #45: test_heap_empty_operations ................ Passed 0.01 sec
41/365 Test #46: test_heap_null_safety ..................... Passed 0.01 sec
42/365 Test #47: test_heap_single_element .................. Passed 0.01 sec
43/365 Test #48: test_heap_remove_last ..................... Passed 0.01 sec
44/365 Test #49: test_heap_stress .......................... Passed 0.01 sec
45/365 Test #50: test_heap_loopy_maxfd_integration ......... Passed 0.01 sec
46/365 Test #51: test_null_handling ........................ Passed 0.01 sec
47/365 Test #52: test_unregister_nonexistent ............... Passed 0.01 sec
48/365 Test #53: test_get_events_invalid_fd ................ Passed 0.01 sec
49/365 Test #54: test_dns_create_delete .................... Passed 0.01 sec
50/365 Test #55: test_dns_create_default_config ............ Passed 0.01 sec
51/365 Test #56: test_dns_status_strings ................... Passed 0.01 sec
52/365 Test #57: test_dns_resolve_localhost ................ Passed 0.01 sec
53/365 Test #58: test_dns_cancel ........................... Passed 0.01 sec
54/365 Test #59: test_dns_cancel_all ....................... Passed 0.01 sec
55/365 Test #60: test_dns_null_safety ...................... Passed 0.01 sec
56/365 Test #62: test_dns_reverse_null_safety .............. Passed 0.01 sec
57/365 Test #63: test_signal_create_delete ................. Passed 0.01 sec
58/365 Test #64: test_signal_single_handler ................ Passed 0.01 sec
59/365 Test #67: test_signal_names ......................... Passed 0.00 sec
Start 26: test_tcp_connect_accept
Start 65: test_signal_register_unregister
Start 74: test_async_coalescing
Start 75: test_async_multiple_handles
Start 76: test_async_user_data
Start 77: test_async_backend_name
Start 78: test_async_null_safety
Start 79: test_work_create_delete
Start 80: test_work_create_default_config
Start 81: test_work_queue_execute
Start 82: test_work_cancel_pending
Start 83: test_work_cancel_all
Start 84: test_work_multiple_concurrent
Start 85: test_work_status_strings
Start 86: test_work_null_safety
Start 87: test_work_queue_overflow
Start 88: test_watch_create_delete
Start 89: test_watch_add_remove
Start 90: test_watch_multiple
Start 91: test_watch_modify_event
Start 92: test_watch_event_names
Start 93: test_watch_backend_name
Start 94: test_watch_nonexistent_path
Start 95: test_watch_null_safety
Start 96: test_fspoll_create_delete
60/365 Test #68: test_signal_invalid_signum ................ Passed 0.01 sec
61/365 Test #61: test_dns_reverse_lookup ................... Passed 0.02 sec
Start 97: test_fspoll_detect_modify
Start 98: test_fspoll_detect_chmod
62/365 Test #69: test_signal_null_safety ................... Passed 0.01 sec
63/365 Test #71: test_async_create_delete .................. Passed 0.01 sec
64/365 Test #72: test_async_send_same_thread ............... Passed 0.01 sec
65/365 Test #26: test_tcp_connect_accept ................... Passed 0.01 sec
66/365 Test #65: test_signal_register_unregister ........... Passed 0.01 sec
67/365 Test #74: test_async_coalescing ..................... Passed 0.01 sec
68/365 Test #75: test_async_multiple_handles ............... Passed 0.01 sec
69/365 Test #76: test_async_user_data ...................... Passed 0.01 sec
70/365 Test #77: test_async_backend_name ................... Passed 0.01 sec
71/365 Test #78: test_async_null_safety .................... Passed 0.01 sec
72/365 Test #79: test_work_create_delete ................... Passed 0.01 sec
73/365 Test #80: test_work_create_default_config ........... Passed 0.01 sec
74/365 Test #82: test_work_cancel_pending .................. Passed 0.01 sec
75/365 Test #83: test_work_cancel_all ...................... Passed 0.01 sec
76/365 Test #85: test_work_status_strings .................. Passed 0.01 sec
77/365 Test #86: test_work_null_safety ..................... Passed 0.01 sec
78/365 Test #88: test_watch_create_delete .................. Passed 0.00 sec
79/365 Test #89: test_watch_add_remove ..................... Passed 0.00 sec
Start 27: test_unix_server
Start 66: test_signal_delivery
Start 99: test_fspoll_detect_delete
Start 100: test_fspoll_start_stop
Start 101: test_fspoll_null_safety
Start 102: test_udp_create_delete
Start 107: test_udp_try_send
Start 109: test_udp_ttl
Start 110: test_udp_recv_stop
Start 111: test_udp_null_safety
Start 114: test_udp_batch_native_check
Start 115: test_udp_batch_null_safety
Start 116: test_udp_gso_detection
Start 117: test_udp_gso_enable_disable
Start 118: test_udp_gso_invalid_segment_size
Start 119: test_udp_gso_send_not_enabled
Start 120: test_udp_gso_null_safety
Start 123: test_udp_gro_detection
80/365 Test #90: test_watch_multiple ....................... Passed 0.01 sec
81/365 Test #92: test_watch_event_names .................... Passed 0.01 sec
82/365 Test #93: test_watch_backend_name ................... Passed 0.01 sec
Start 124: test_udp_gro_enable_disable
Start 125: test_udp_gro_null_safety
Start 126: test_udp_pmtu_set_mode
83/365 Test #95: test_watch_null_safety .................... Passed 0.01 sec
84/365 Test #94: test_watch_nonexistent_path ............... Passed 0.01 sec
85/365 Test #96: test_fspoll_create_delete ................. Passed 0.01 sec
86/365 Test #73: test_async_send_from_thread ............... Passed 0.02 sec
87/365 Test #81: test_work_queue_execute ................... Passed 0.02 sec
88/365 Test #27: test_unix_server .......................... Passed 0.01 sec
89/365 Test #66: test_signal_delivery ...................... Passed 0.01 sec
90/365 Test #100: test_fspoll_start_stop .................... Passed 0.01 sec
91/365 Test #101: test_fspoll_null_safety ................... Passed 0.01 sec
92/365 Test #102: test_udp_create_delete .................... Passed 0.01 sec
93/365 Test #107: test_udp_try_send ......................... Passed 0.01 sec
94/365 Test #109: test_udp_ttl .............................. Passed 0.01 sec
95/365 Test #110: test_udp_recv_stop ........................ Passed 0.01 sec
96/365 Test #111: test_udp_null_safety ...................... Passed 0.01 sec
97/365 Test #114: test_udp_batch_native_check ............... Passed 0.01 sec
98/365 Test #115: test_udp_batch_null_safety ................ Passed 0.00 sec
99/365 Test #116: test_udp_gso_detection .................... Passed 0.00 sec
Start 28: test_unix_connect
Start 70: test_signal_oneshot
Start 127: test_udp_pmtu_get
Start 128: test_udp_pmtu_null_safety
Start 130: test_process_spawn_simple
Start 131: test_process_exit_code
Start 132: test_process_capture_stdout
Start 133: test_process_kill
Start 134: test_process_cwd
Start 135: test_process_env
Start 136: test_process_spawn_failure
Start 137: test_process_null_safety
Start 138: test_idle_create_delete
Start 139: test_prepare_create_delete
Start 140: test_check_create_delete
Start 141: test_idle_callback_fires
Start 142: test_idle_auto_stop
100/365 Test #117: test_udp_gso_enable_disable ............... Passed 0.01 sec
101/365 Test #84: test_work_multiple_concurrent ............. Passed 0.02 sec
102/365 Test #118: test_udp_gso_invalid_segment_size ......... Passed 0.01 sec
103/365 Test #119: test_udp_gso_send_not_enabled ............. Passed 0.01 sec
104/365 Test #120: test_udp_gso_null_safety .................. Passed 0.01 sec
Start 143: test_prepare_callback_fires
Start 144: test_check_callback_fires
Start 145: test_idle_stop_restart
Start 146: test_idle_multiple_handles
Start 147: test_idle_null_safety
105/365 Test #123: test_udp_gro_detection .................... Passed 0.01 sec
106/365 Test #124: test_udp_gro_enable_disable ............... Passed 0.01 sec
107/365 Test #125: test_udp_gro_null_safety .................. Passed 0.01 sec
108/365 Test #126: test_udp_pmtu_set_mode .................... Passed 0.01 sec
109/365 Test #28: test_unix_connect ......................... Passed 0.01 sec
110/365 Test #70: test_signal_oneshot ....................... Passed 0.01 sec
111/365 Test #127: test_udp_pmtu_get ......................... Passed 0.01 sec
112/365 Test #128: test_udp_pmtu_null_safety ................. Passed 0.01 sec
113/365 Test #130: test_process_spawn_simple ................. Passed 0.01 sec
114/365 Test #131: test_process_exit_code .................... Passed 0.01 sec
115/365 Test #133: test_process_kill ......................... Passed 0.01 sec
116/365 Test #134: test_process_cwd .......................... Passed 0.01 sec
117/365 Test #135: test_process_env .......................... Passed 0.01 sec
118/365 Test #136: test_process_spawn_failure ................ Passed 0.01 sec
119/365 Test #137: test_process_null_safety .................. Passed 0.01 sec
120/365 Test #138: test_idle_create_delete ................... Passed 0.01 sec
Start 33: test_nice_tcp_server
Start 148: test_idle_rapid_iterations
Start 149: test_check_fires_with_idle_only
Start 150: test_prepare_fires_each_iteration
Start 151: test_idle_prepare_check_order
Start 152: test_idle_timer_no_block
Start 153: test_stream_create_delete_tcp
Start 154: test_stream_create_delete_pipe
Start 155: test_stream_from_fd
Start 158: test_stream_pipe_read_write
Start 159: test_stream_try_write
Start 160: test_stream_shutdown
Start 161: test_stream_write_queue
Start 162: test_stream_null_safety
Start 163: test_stream_fd_passing_basic
Start 164: test_stream_fd_passing_multiple
121/365 Test #132: test_process_capture_stdout ............... Passed 0.01 sec
122/365 Test #139: test_prepare_create_delete ................ Passed 0.01 sec
123/365 Test #140: test_check_create_delete .................. Passed 0.01 sec
Start 165: test_stream_fd_passing_not_pipe
Start 166: test_stream_fd_passing_null_safety
Start 167: test_fs_sync_operations
124/365 Test #145: test_idle_stop_restart .................... Passed 0.01 sec
125/365 Test #146: test_idle_multiple_handles ................ Passed 0.01 sec
126/365 Test #147: test_idle_null_safety ..................... Passed 0.01 sec
127/365 Test #33: test_nice_tcp_server ...................... Passed 0.01 sec
128/365 Test #153: test_stream_create_delete_tcp ............. Passed 0.00 sec
129/365 Test #154: test_stream_create_delete_pipe ............ Passed 0.00 sec
130/365 Test #155: test_stream_from_fd ....................... Passed 0.00 sec
131/365 Test #158: test_stream_pipe_read_write ............... Passed 0.00 sec
132/365 Test #159: test_stream_try_write ..................... Passed 0.00 sec
Start 103: test_udp_bind_ipv4
Start 168: test_fs_async_open_close
Start 169: test_fs_stat
Start 170: test_fs_mkdir_rmdir
Start 171: test_fs_rename
Start 172: test_fs_pread_pwrite
Start 173: test_fs_truncate_fsync
Start 174: test_fs_chmod
Start 175: test_fs_error_handling
133/365 Test #160: test_stream_shutdown ...................... Passed 0.01 sec
134/365 Test #162: test_stream_null_safety ................... Passed 0.01 sec
Start 176: test_fs_null_safety
Start 177: test_fs_link_symlink
135/365 Test #164: test_stream_fd_passing_multiple ........... Passed 0.01 sec
136/365 Test #165: test_stream_fd_passing_not_pipe ........... Passed 0.01 sec
137/365 Test #166: test_stream_fd_passing_null_safety ........ Passed 0.01 sec
138/365 Test #167: test_fs_sync_operations ................... Passed 0.01 sec
139/365 Test #152: test_idle_timer_no_block .................. Passed 0.01 sec
140/365 Test #103: test_udp_bind_ipv4 ........................ Passed 0.00 sec
141/365 Test #169: test_fs_stat .............................. Passed 0.00 sec
142/365 Test #170: test_fs_mkdir_rmdir ....................... Passed 0.00 sec
143/365 Test #171: test_fs_rename ............................ Passed 0.00 sec
144/365 Test #168: test_fs_async_open_close .................. Passed 0.00 sec
Start 104: test_udp_bind_ipv6
Start 178: test_fs_realpath_access
Start 179: test_fs_scandir
Start 180: test_fs_utime
Start 181: test_fs_copyfile
Start 182: test_fs_mkstemp_mkdtemp
Start 183: test_fs_extended_null_safety
Start 184: test_tty_is_tty
Start 185: test_tty_create_non_tty
Start 186: test_tty_create_if_available
145/365 Test #172: test_fs_pread_pwrite ...................... Passed 0.01 sec
Start 187: test_tty_mode_enum
146/365 Test #175: test_fs_error_handling .................... Passed 0.01 sec
147/365 Test #174: test_fs_chmod ............................. Passed 0.01 sec
148/365 Test #176: test_fs_null_safety ....................... Passed 0.01 sec
149/365 Test #148: test_idle_rapid_iterations ................ Passed 0.02 sec
150/365 Test #149: test_check_fires_with_idle_only ........... Passed 0.02 sec
151/365 Test #150: test_prepare_fires_each_iteration ......... Passed 0.02 sec
152/365 Test #151: test_idle_prepare_check_order ............. Passed 0.02 sec
153/365 Test #104: test_udp_bind_ipv6 ........................ Passed 0.01 sec
Start 105: test_udp_send_recv
Start 188: test_tty_null_safety
Start 189: test_tty_reset_all
Start 190: test_random_sync_basic
Start 191: test_random_sync_various_sizes
Start 192: test_random_async
Start 193: test_random_uniqueness
Start 194: test_random_null_safety
154/365 Test #87: test_work_queue_overflow .................. Passed 0.05 sec
155/365 Test #183: test_fs_extended_null_safety .............. Passed 0.01 sec
156/365 Test #185: test_tty_create_non_tty ................... Passed 0.01 sec
157/365 Test #186: test_tty_create_if_available .............. Passed 0.01 sec
158/365 Test #173: test_fs_truncate_fsync .................... Passed 0.01 sec
159/365 Test #177: test_fs_link_symlink ...................... Passed 0.01 sec
160/365 Test #180: test_fs_utime ............................. Passed 0.01 sec
161/365 Test #184: test_tty_is_tty ........................... Passed 0.01 sec
Start 195: test_metrics_enable_disable
Start 196: test_metrics_loop_iterations
Start 197: test_metrics_events_processed
Start 198: test_metrics_reset
Start 199: test_metrics_null_safety
Start 200: test_metrics_poll_time
Start 201: test_metrics_timers_processed
Start 202: test_sys_interface_addresses
162/365 Test #178: test_fs_realpath_access ................... Passed 0.01 sec
163/365 Test #182: test_fs_mkstemp_mkdtemp ................... Passed 0.01 sec
164/365 Test #179: test_fs_scandir ........................... Passed 0.01 sec
165/365 Test #187: test_tty_mode_enum ........................ Passed 0.01 sec
166/365 Test #181: test_fs_copyfile .......................... Passed 0.01 sec
167/365 Test #188: test_tty_null_safety ...................... Passed 0.00 sec
168/365 Test #189: test_tty_reset_all ........................ Passed 0.00 sec
Start 203: test_sys_available_parallelism
Start 204: test_sys_exe_path
Start 205: test_sys_statfs
Start 206: test_sys_null_safety
Start 207: test_sys_homedir
Start 208: test_sys_tmpdir
Start 209: test_sys_cwd_chdir
169/365 Test #190: test_random_sync_basic .................... Passed 0.01 sec
170/365 Test #105: test_udp_send_recv ........................ Passed 0.01 sec
171/365 Test #191: test_random_sync_various_sizes ............ Passed 0.01 sec
172/365 Test #192: test_random_async ......................... Passed 0.01 sec
173/365 Test #193: test_random_uniqueness .................... Passed 0.01 sec
174/365 Test #194: test_random_null_safety ................... Passed 0.01 sec
175/365 Test #195: test_metrics_enable_disable ............... Passed 0.00 sec
Start 106: test_udp_connect
Start 210: test_sys_hostname
Start 211: test_sys_paths_null_safety
Start 212: test_mmap_utilities
Start 213: test_mmap_file_readonly
Start 214: test_mmap_file_readwrite
Start 215: test_mmap_anonymous
176/365 Test #198: test_metrics_reset ........................ Passed 0.01 sec
177/365 Test #199: test_metrics_null_safety .................. Passed 0.01 sec
178/365 Test #202: test_sys_interface_addresses .............. Passed 0.01 sec
179/365 Test #203: test_sys_available_parallelism ............ Passed 0.00 sec
180/365 Test #204: test_sys_exe_path ......................... Passed 0.00 sec
Start 216: test_mmap_shared_ipc
Start 217: test_mmap_advice
Start 218: test_mmap_sync
Start 219: test_mmap_lock_unlock
Start 220: test_mmap_offset_length
181/365 Test #205: test_sys_statfs ........................... Passed 0.01 sec
182/365 Test #163: test_stream_fd_passing_basic .............. Passed 0.03 sec
183/365 Test #207: test_sys_homedir .......................... Passed 0.00 sec
184/365 Test #206: test_sys_null_safety ...................... Passed 0.01 sec
185/365 Test #208: test_sys_tmpdir ........................... Passed 0.00 sec
186/365 Test #209: test_sys_cwd_chdir ........................ Passed 0.00 sec
Start 221: test_mmap_error_handling
Start 222: test_mmap_null_safety
Start 223: test_direct_io_aligned_allocation
Start 224: test_direct_io_aligned_edge_cases
Start 225: test_direct_io_read_write
Start 226: test_direct_io_alignment_requirements
187/365 Test #210: test_sys_hostname ......................... Passed 0.01 sec
188/365 Test #211: test_sys_paths_null_safety ................ Passed 0.01 sec
189/365 Test #212: test_mmap_utilities ....................... Passed 0.00 sec
190/365 Test #196: test_metrics_loop_iterations .............. Passed 0.01 sec
191/365 Test #106: test_udp_connect .......................... Passed 0.01 sec
192/365 Test #91: test_watch_modify_event ................... Passed 0.06 sec
193/365 Test #213: test_mmap_file_readonly ................... Passed 0.00 sec
194/365 Test #215: test_mmap_anonymous ....................... Passed 0.00 sec
195/365 Test #214: test_mmap_file_readwrite .................. Passed 0.00 sec
Start 108: test_udp_broadcast
Start 227: test_direct_io_various_sizes
Start 228: test_direct_io_null_safety
Start 229: test_connpool_create_delete
Start 230: test_connpool_default_config
Start 231: test_connpool_acquire_release
Start 232: test_connpool_connection_reuse
Start 233: test_connpool_min_idle
Start 234: test_connpool_max_total
196/365 Test #216: test_mmap_shared_ipc ...................... Passed 0.01 sec
197/365 Test #217: test_mmap_advice .......................... Passed 0.01 sec
198/365 Test #219: test_mmap_lock_unlock ..................... Passed 0.01 sec
199/365 Test #218: test_mmap_sync ............................ Passed 0.01 sec
200/365 Test #98: test_fspoll_detect_chmod .................. Passed 0.06 sec
201/365 Test #220: test_mmap_offset_length ................... Passed 0.01 sec
202/365 Test #97: test_fspoll_detect_modify ................. Passed 0.06 sec
Start 235: test_connpool_validation
Start 236: test_connpool_unhealthy_release
Start 237: test_connpool_statistics
Start 238: test_connpool_health_check
Start 239: test_connpool_idle_cleanup
Start 240: test_connpool_prewarm
Start 241: test_connpool_null_safety
203/365 Test #222: test_mmap_null_safety ..................... Passed 0.01 sec
204/365 Test #221: test_mmap_error_handling .................. Passed 0.01 sec
205/365 Test #223: test_direct_io_aligned_allocation ......... Passed 0.01 sec
206/365 Test #224: test_direct_io_aligned_edge_cases ......... Passed 0.01 sec
207/365 Test #99: test_fspoll_detect_delete ................. Passed 0.06 sec
208/365 Test #226: test_direct_io_alignment_requirements ..... Passed 0.01 sec
209/365 Test #225: test_direct_io_read_write ................. Passed 0.01 sec
210/365 Test #108: test_udp_broadcast ........................ Passed 0.00 sec
211/365 Test #227: test_direct_io_various_sizes .............. Passed 0.00 sec
212/365 Test #228: test_direct_io_null_safety ................ Passed 0.00 sec
Start 112: test_udp_batch_send_recv
Start 242: test_connpool_async_acquire
Start 243: test_flock_capabilities
Start 244: test_flock_exclusive_basic
Start 245: test_flock_shared_basic
Start 246: test_flock_fcntl_whole_file
Start 247: test_flock_fcntl_byte_range
Start 248: test_flock_test_range
Start 249: test_flock_highlevel_api
Start 250: test_flock_highlevel_fcntl_range
213/365 Test #229: test_connpool_create_delete ............... Passed 0.01 sec
214/365 Test #230: test_connpool_default_config .............. Passed 0.01 sec
215/365 Test #201: test_metrics_timers_processed ............. Passed 0.02 sec
216/365 Test #231: test_connpool_acquire_release ............. Passed 0.01 sec
217/365 Test #232: test_connpool_connection_reuse ............ Passed 0.01 sec
218/365 Test #233: test_connpool_min_idle .................... Passed 0.01 sec
219/365 Test #234: test_connpool_max_total ................... Passed 0.01 sec
Start 251: test_flock_lockfile_pattern
Start 252: test_flock_error_handling
Start 253: test_flock_null_safety
Start 254: test_channel_create_destroy
Start 255: test_channel_config_init
Start 256: test_channel_spsc_send_recv
Start 257: test_channel_mpsc_send_recv
220/365 Test #236: test_connpool_unhealthy_release ........... Passed 0.01 sec
221/365 Test #235: test_connpool_validation .................. Passed 0.01 sec
222/365 Test #237: test_connpool_statistics .................. Passed 0.01 sec
223/365 Test #238: test_connpool_health_check ................ Passed 0.01 sec
224/365 Test #240: test_connpool_prewarm ..................... Passed 0.01 sec
225/365 Test #241: test_connpool_null_safety ................. Passed 0.01 sec
226/365 Test #243: test_flock_capabilities ................... Passed 0.00 sec
227/365 Test #244: test_flock_exclusive_basic ................ Passed 0.00 sec
Start 258: test_channel_mpmc_send_recv
Start 259: test_channel_try_send_recv
Start 260: test_channel_full_empty
Start 261: test_channel_close
Start 262: test_channel_stats
Start 263: test_channel_type_names
Start 264: test_channel_status_names
Start 265: test_channel_null_safety
228/365 Test #245: test_flock_shared_basic ................... Passed 0.01 sec
229/365 Test #246: test_flock_fcntl_whole_file ............... Passed 0.01 sec
230/365 Test #247: test_flock_fcntl_byte_range ............... Passed 0.01 sec
231/365 Test #248: test_flock_test_range ..................... Passed 0.01 sec
232/365 Test #249: test_flock_highlevel_api .................. Passed 0.01 sec
233/365 Test #250: test_flock_highlevel_fcntl_range .......... Passed 0.01 sec
234/365 Test #251: test_flock_lockfile_pattern ............... Passed 0.00 sec
Start 266: test_channel_introspection
Start 267: test_channel_spsc_threaded
Start 268: test_channel_mpsc_threaded
Start 269: test_channel_mpmc_threaded
Start 270: test_channel_select_basic
Start 271: test_channel_select_timeout
Start 272: test_ratelimit_token_bucket_basic
235/365 Test #253: test_flock_null_safety .................... Passed 0.01 sec
236/365 Test #252: test_flock_error_handling ................. Passed 0.01 sec
237/365 Test #254: test_channel_create_destroy ............... Passed 0.01 sec
238/365 Test #255: test_channel_config_init .................. Passed 0.01 sec
239/365 Test #256: test_channel_spsc_send_recv ............... Passed 0.01 sec
240/365 Test #257: test_channel_mpsc_send_recv ............... Passed 0.01 sec
241/365 Test #258: test_channel_mpmc_send_recv ............... Passed 0.00 sec
242/365 Test #260: test_channel_full_empty ................... Passed 0.00 sec
Start 273: test_ratelimit_token_bucket_refill
Start 274: test_ratelimit_token_bucket_burst
Start 275: test_ratelimit_sliding_window_basic
Start 276: test_ratelimit_sliding_window_expiry
Start 277: test_ratelimit_leaky_bucket_basic
Start 278: test_ratelimit_fixed_window_basic
Start 279: test_ratelimit_fixed_window_reset
Start 280: test_ratelimit_stats
243/365 Test #259: test_channel_try_send_recv ................ Passed 0.01 sec
244/365 Test #261: test_channel_close ........................ Passed 0.01 sec
245/365 Test #262: test_channel_stats ........................ Passed 0.01 sec
246/365 Test #263: test_channel_type_names ................... Passed 0.01 sec
247/365 Test #264: test_channel_status_names ................. Passed 0.01 sec
248/365 Test #265: test_channel_null_safety .................. Passed 0.00 sec
Start 281: test_ratelimit_peek
Start 282: test_ratelimit_algorithm_names
Start 283: test_concurrency_basic
Start 284: test_concurrency_limit
Start 285: test_concurrency_release
Start 286: test_concurrency_stats
249/365 Test #266: test_channel_introspection ................ Passed 0.01 sec
250/365 Test #268: test_channel_mpsc_threaded ................ Passed 0.01 sec
251/365 Test #267: test_channel_spsc_threaded ................ Passed 0.01 sec
252/365 Test #270: test_channel_select_basic ................. Passed 0.00 sec
253/365 Test #269: test_channel_mpmc_threaded ................ Passed 0.01 sec
254/365 Test #272: test_ratelimit_token_bucket_basic ......... Passed 0.00 sec
255/365 Test #274: test_ratelimit_token_bucket_burst ......... Passed 0.00 sec
Start 287: test_concurrency_threaded
Start 288: test_tls_init_cleanup
Start 289: test_tls_context_create
Start 290: test_tls_context_config
Start 291: test_tls_result_names
Start 292: test_tls_connection_create
Start 293: test_tls_null_safety
256/365 Test #275: test_ratelimit_sliding_window_basic ....... Passed 0.01 sec
257/365 Test #277: test_ratelimit_leaky_bucket_basic ......... Passed 0.00 sec
258/365 Test #278: test_ratelimit_fixed_window_basic ......... Passed 0.00 sec
259/365 Test #280: test_ratelimit_stats ...................... Passed 0.00 sec
Start 294: test_stress_framework_basic
Start 295: test_stress_counter
Start 296: test_stress_seqtracker
Start 297: test_stress_message_integrity
260/365 Test #281: test_ratelimit_peek ....................... Passed 0.00 sec
261/365 Test #282: test_ratelimit_algorithm_names ............ Passed 0.00 sec
262/365 Test #283: test_concurrency_basic .................... Passed 0.00 sec
263/365 Test #284: test_concurrency_limit .................... Passed 0.00 sec
264/365 Test #112: test_udp_batch_send_recv .................. Passed 0.02 sec
265/365 Test #285: test_concurrency_release .................. Passed 0.00 sec
266/365 Test #286: test_concurrency_stats .................... Passed 0.00 sec
267/365 Test #273: test_ratelimit_token_bucket_refill ........ Passed 0.01 sec
268/365 Test #288: test_tls_init_cleanup ..................... Passed 0.00 sec
Start 113: test_udp_batch_connected
Start 298: test_stress_channel_spsc_integrity
Start 299: test_stress_channel_mpmc_contention
Start 300: test_stress_channel_mpmc_ordering
Start 301: test_stress_channel_close_under_load
Start 302: test_stress_channel_boundary_conditions
Start 303: test_pubsub_create_destroy
Start 304: test_pubsub_config_init
Start 305: test_pubsub_subscribe_unsubscribe
269/365 Test #289: test_tls_context_create ................... Passed 0.02 sec
270/365 Test #290: test_tls_context_config ................... Passed 0.02 sec
271/365 Test #291: test_tls_result_names ..................... Passed 0.02 sec
272/365 Test #292: test_tls_connection_create ................ Passed 0.02 sec
Start 306: test_pubsub_publish_basic
Start 307: test_pubsub_wildcard_star
Start 308: test_pubsub_wildcard_hash
Start 309: test_pubsub_multiple_subscribers
273/365 Test #293: test_tls_null_safety ...................... Passed 0.03 sec
274/365 Test #295: test_stress_counter ....................... Passed 0.03 sec
275/365 Test #296: test_stress_seqtracker .................... Passed 0.03 sec
276/365 Test #297: test_stress_message_integrity ............. Passed 0.03 sec
277/365 Test #271: test_channel_select_timeout ............... Passed 0.03 sec
278/365 Test #197: test_metrics_events_processed ............. Passed 0.06 sec
279/365 Test #287: test_concurrency_threaded ................. Passed 0.03 sec
280/365 Test #113: test_udp_batch_connected .................. Passed 0.03 sec
281/365 Test #302: test_stress_channel_boundary_conditions ... Passed 0.02 sec
282/365 Test #303: test_pubsub_create_destroy ................ Passed 0.02 sec
283/365 Test #304: test_pubsub_config_init ................... Passed 0.01 sec
Start 121: test_udp_gso_send_basic
Start 310: test_pubsub_queue_mode
Start 311: test_pubsub_stats
Start 312: test_pubsub_validation
Start 313: test_pubsub_null_safety
Start 314: test_pubsub_mode_names
Start 315: test_concpool_create_destroy
Start 316: test_concpool_config_init
Start 317: test_concpool_add_remove_user
Start 318: test_concpool_acquire_release
Start 319: test_concpool_user_limit
284/365 Test #305: test_pubsub_subscribe_unsubscribe ......... Passed 0.03 sec
285/365 Test #200: test_metrics_poll_time .................... Passed 0.08 sec
286/365 Test #300: test_stress_channel_mpmc_ordering ......... Passed 0.05 sec
287/365 Test #306: test_pubsub_publish_basic ................. Passed 0.03 sec
288/365 Test #307: test_pubsub_wildcard_star ................. Passed 0.03 sec
Start 320: test_concpool_global_limit
Start 321: test_concpool_auto_create_user
Start 322: test_concpool_multiple_users
Start 323: test_concpool_stats
Start 324: test_concpool_iteration
289/365 Test #308: test_pubsub_wildcard_hash ................. Passed 0.03 sec
290/365 Test #309: test_pubsub_multiple_subscribers .......... Passed 0.03 sec
291/365 Test #141: test_idle_callback_fires .................. Passed 0.12 sec
292/365 Test #143: test_prepare_callback_fires ............... Passed 0.11 sec
293/365 Test #144: test_check_callback_fires ................. Passed 0.11 sec
294/365 Test #121: test_udp_gso_send_basic ................... Passed 0.03 sec
295/365 Test #310: test_pubsub_queue_mode .................... Passed 0.03 sec
296/365 Test #311: test_pubsub_stats ......................... Passed 0.03 sec
297/365 Test #312: test_pubsub_validation .................... Passed 0.03 sec
298/365 Test #313: test_pubsub_null_safety ................... Passed 0.03 sec
299/365 Test #314: test_pubsub_mode_names .................... Passed 0.02 sec
300/365 Test #315: test_concpool_create_destroy .............. Passed 0.02 sec
301/365 Test #316: test_concpool_config_init ................. Passed 0.02 sec
302/365 Test #317: test_concpool_add_remove_user ............. Passed 0.02 sec
Start 122: test_udp_gso_connected_send
Start 325: test_concpool_null_safety
Start 326: test_concpool_result_names
Start 327: test_concpool_stress_single_user
Start 328: test_concpool_stress_multi_user
Start 329: test_concpool_stress_user_churn
Start 330: test_concpool_stress_invariants
Start 331: test_cluster_create_destroy
Start 332: test_cluster_config_init
Start 333: test_cluster_register_node
Start 334: test_cluster_unregister_node
Start 335: test_cluster_node_state
Start 336: test_cluster_leader
Start 337: test_cluster_config_ops
303/365 Test #318: test_concpool_acquire_release ............. Passed 0.15 sec
304/365 Test #319: test_concpool_user_limit .................. Passed 0.14 sec
305/365 Test #161: test_stream_write_queue ................... Passed 0.24 sec
306/365 Test #320: test_concpool_global_limit ................ Passed 0.14 sec
307/365 Test #321: test_concpool_auto_create_user ............ Passed 0.14 sec
308/365 Test #322: test_concpool_multiple_users .............. Passed 0.14 sec
Start 338: test_cluster_config_ttl
Start 339: test_cluster_config_iterate
Start 340: test_cluster_node_iterate
Start 341: test_cluster_events
Start 342: test_cluster_null_safety
Start 343: test_cluster_util
309/365 Test #324: test_concpool_iteration ................... Passed 0.14 sec
310/365 Test #323: test_concpool_stats ....................... Passed 0.15 sec
311/365 Test #301: test_stress_channel_close_under_load ...... Passed 0.20 sec
312/365 Test #279: test_ratelimit_fixed_window_reset ......... Passed 0.20 sec
313/365 Test #276: test_ratelimit_sliding_window_expiry ...... Passed 0.20 sec
314/365 Test #294: test_stress_framework_basic ............... Passed 0.20 sec
315/365 Test #239: test_connpool_idle_cleanup ................ Passed 0.22 sec
316/365 Test #122: test_udp_gso_connected_send ............... Passed 0.14 sec
317/365 Test #325: test_concpool_null_safety ................. Passed 0.14 sec
318/365 Test #326: test_concpool_result_names ................ Passed 0.14 sec
319/365 Test #327: test_concpool_stress_single_user .......... Passed 0.14 sec
320/365 Test #330: test_concpool_stress_invariants ........... Passed 0.14 sec
321/365 Test #331: test_cluster_create_destroy ............... Passed 0.13 sec
322/365 Test #332: test_cluster_config_init .................. Passed 0.03 sec
323/365 Test #333: test_cluster_register_node ................ Passed 0.03 sec
324/365 Test #334: test_cluster_unregister_node .............. Passed 0.02 sec
325/365 Test #335: test_cluster_node_state ................... Passed 0.02 sec
326/365 Test #336: test_cluster_leader ....................... Passed 0.01 sec
Start 129: test_udp_pmtu_with_connect
Start 344: test_stress_pubsub_multi_publisher
Start 345: test_stress_pubsub_subscriber_churn
Start 346: test_stress_pubsub_pattern_matching
Start 347: test_stress_pubsub_message_integrity
Start 348: test_stress_pubsub_fanout
Start 349: test_stress_registry_node_churn
Start 350: test_stress_registry_config_churn
Start 351: test_stress_registry_concurrent_access
Start 352: test_stress_registry_events
Start 353: test_stress_channel_pubsub_integration
Start 354: test_stress_full_system
Start 355: stress_cli_channel_quick
327/365 Test #337: test_cluster_config_ops ................... Passed 0.07 sec
328/365 Test #339: test_cluster_config_iterate ............... Passed 0.07 sec
329/365 Test #340: test_cluster_node_iterate ................. Passed 0.07 sec
330/365 Test #342: test_cluster_null_safety .................. Passed 0.07 sec
331/365 Test #343: test_cluster_util ......................... Passed 0.07 sec
332/365 Test #341: test_cluster_events ....................... Passed 0.07 sec
333/365 Test #328: test_concpool_stress_multi_user ........... Passed 0.20 sec
334/365 Test #129: test_udp_pmtu_with_connect ................ Passed 0.06 sec
335/365 Test #346: test_stress_pubsub_pattern_matching ....... Passed 0.06 sec
336/365 Test #347: test_stress_pubsub_message_integrity ...... Passed 0.06 sec
337/365 Test #348: test_stress_pubsub_fanout ................. Passed 0.06 sec
Start 156: test_stream_bind_listen
338/365 Test #156: test_stream_bind_listen ................... Passed 0.03 sec
339/365 Test #329: test_concpool_stress_user_churn ........... Passed 0.23 sec
Start 157: test_stream_accept
340/365 Test #338: test_cluster_config_ttl ................... Passed 0.11 sec
341/365 Test #352: test_stress_registry_events ............... Passed 0.21 sec
342/365 Test #142: test_idle_auto_stop ....................... Passed 0.51 sec
343/365 Test #157: test_stream_accept ........................ Passed 0.20 sec
344/365 Test #353: test_stress_channel_pubsub_integration .... Passed 0.27 sec
345/365 Test #345: test_stress_pubsub_subscriber_churn ....... Passed 0.31 sec
346/365 Test #351: test_stress_registry_concurrent_access .... Passed 0.31 sec
347/365 Test #299: test_stress_channel_mpmc_contention ....... Passed 0.60 sec
348/365 Test #344: test_stress_pubsub_multi_publisher ........ Passed 0.50 sec
349/365 Test #349: test_stress_registry_node_churn ........... Passed 0.52 sec
350/365 Test #350: test_stress_registry_config_churn ......... Passed 0.52 sec
351/365 Test #354: test_stress_full_system ................... Passed 0.53 sec
352/365 Test #298: test_stress_channel_spsc_integrity ........ Passed 1.00 sec
353/365 Test #242: test_connpool_async_acquire ............... Passed 1.02 sec
354/365 Test #355: stress_cli_channel_quick .................. Passed 7.50 sec
Start 356: stress_cli_pubsub_quick
355/365 Test #356: stress_cli_pubsub_quick ................... Passed 0.00 sec
Start 357: stress_cli_registry_quick
356/365 Test #357: stress_cli_registry_quick ................. Passed 0.14 sec
Start 358: stress_cli_integration_quick
357/365 Test #358: stress_cli_integration_quick .............. Passed 0.00 sec
Start 359: stress_cli_channel_medium
358/365 Test #1: loopy_all_tests ........................... Passed 8.77 sec
359/365 Test #359: stress_cli_channel_medium ................. Passed 21.60 sec
Start 360: stress_cli_pubsub_medium
360/365 Test #360: stress_cli_pubsub_medium .................. Passed 0.01 sec
Start 361: stress_cli_registry_medium
361/365 Test #361: stress_cli_registry_medium ................ Passed 0.59 sec
Start 362: stress_cli_integration_medium
362/365 Test #362: stress_cli_integration_medium ............. Passed 0.01 sec
Start 363: stress_cli_channel_thorough
363/365 Test #363: stress_cli_channel_thorough ............... Passed 128.03 sec
Start 364: stress_cli_pubsub_thorough
364/365 Test #364: stress_cli_pubsub_thorough ................ Passed 0.04 sec
Start 365: stress_cli_integration_thorough
365/365 Test #365: stress_cli_integration_thorough ........... Passed 0.03 sec
100% tests passed, 0 tests failed out of 365
Label Time Summary:
medium = 22.20 sec*proc (4 tests)
quick = 7.66 sec*proc (4 tests)
rax = 7.29 sec*proc (60 tests)
stress = 157.95 sec*proc (11 tests)
thorough = 128.10 sec*proc (3 tests)
unit = 20.93 sec*proc (353 tests)
Total Test time (real) = 158.55 secstats
===============================================================================
Language Files Lines Code Comments Blanks
===============================================================================
C 45 47934 33265 6540 8129
C Header 35 16275 2310 12683 1282
CMake 2 767 555 142 70
-------------------------------------------------------------------------------
Markdown 8 3722 0 2353 1369
|- BASH 3 84 57 17 10
|- C 8 3991 2672 697 622
|- CMake 1 13 5 7 1
(Total) 7810 2734 3074 2002
===============================================================================
Total 90 68698 36130 21718 10850
===============================================================================billions
The world operates in cycles. Technology operates in cycles.
“cycles” are sometimes a nice way to get around admitting you’re living in various “circles of hell.”
it’s rant season!
There are certain circles of tech hell I haven’t been able to escape for the past 15+ years. One would think the industry as a whole would get “more advanced” over time and internalize the stages of tech development into wider and wider understanding of everything over time, yet I keep seeing the same 7-14 failure conditions present in companies all over the place. Every company I see keeps having the same problems. It’s almost as if the entire tech industry gets complete amnesia every 3 years and is continually stuck without any experience beyond 2005-2008 level companies.
I think this advice is worth a couple billion dollars because I’ve seen some form of these repeated failures at multiple companies over the years and due to just lack of understanding-at-large these problems hold back product development, stability, customer perception, and ability to even retain and grow employees over time:
- databases aren’t magic.
- databases operate in physical reality and you need efficient indexes, fast storage, fast networking, and fast CPUs for it to work well.
- databases are an entire field of study! you can’t just assume your “full stack off the shelf crud developer” is “an expert database person.” (also see: experts required for building distributed systems, networking, platforms, usability, discovery loops, ……. but nah, just ‘full stack’ and pray the expertise away)
- if your developers writing into a database can’t name the data structures your database is using for data/table storage, for indexing, and even the basic of how query optimizers work, then you need dedicated DBAs to manage your platform.
- don’t run your entire $300+ million company on a database with less storage and RAM and CPU than the phone on my pocket because you think “$50k per year is too expensive for a database server”
- read replicas. heard of them? maybe don’t give your data science team permission to run week long full table scans of your 3 TB mysql database primary write server which then slows down all customers to 30+ seconds per site click and none of your developers notice the impact for months at a time.
- permissions. heard of them? maybe don’t have your entire data science team login as admin/admin to where you’re storing PII for 3 million people with no logging or tracking.
- monitoring storage. heard of it? maybe don’t run your multi-TB database on a fixed-resource server with a dwindling 15 GB free then just “hope it keep auto-scaling” without ever looking at metrics for storage growth rates 3 years.
- data sharding. ever heard of it? maybe don’t let one table grow to hundreds of millions of rows on data platforms not optimized for those use cases?
- monitoring cpu and ram. heard of it? maybe don’t run your databases at 100% CPU and 99.99999% memory usage for 9 months without ever looking at metrics or creating alerts while your CEO continues to hire “consultants” to rewrite your entire application to “be more efficient” because feels “the app is too slow” but nobody ever looked at the single database where all the slow latency is being introduced throughout the entire platform.
- of course, the real culprit is the industry gutting the concept of “profesional operators” so now every “full stack crud developer” thinks they are “doing devops” without the concentrated 10+ years of system/network/cluster/db/cache/os/filesystem/cdn/numa/storage/deployment/planning/clusters/scalability/replication/failover/latency/HA/DRP/architecture/capacity-planning/procedures/dashboards/metrics/monitoring/trending/ACLs/availability/alerting/management experience one actually requires to be competent (not to mention talented or high performing) at platform operations management at scale. but hey, who cares, full stack means you can cram the job responsiblities of 3-5 people each having 10 years of experience down onto one person with 18 months of experience who is like “really good with computers” and nobody complains about it at all. great job, industry!
- nah, just let the CEO continue to demand streaming-looping 1 GB 1080p “auto-playing product intro” videos on the homepage scaled down to a 480 px info box which can consume terabytes of bandwidth if you leave the company site open over a weekend. after all, all of your users have 10 Gbps unmetered fiber connections, right? Nobody ever uses anything else these days in “Executive CEO/Designer/UX-Expert Land”
- of course, the real culprit is the industry gutting the concept of “profesional operators” so now every “full stack crud developer” thinks they are “doing devops” without the concentrated 10+ years of system/network/cluster/db/cache/os/filesystem/cdn/numa/storage/deployment/planning/clusters/scalability/replication/failover/latency/HA/DRP/architecture/capacity-planning/procedures/dashboards/metrics/monitoring/trending/ACLs/availability/alerting/management experience one actually requires to be competent (not to mention talented or high performing) at platform operations management at scale. but hey, who cares, full stack means you can cram the job responsiblities of 3-5 people each having 10 years of experience down onto one person with 18 months of experience who is like “really good with computers” and nobody complains about it at all. great job, industry!
- did you know it’s possible to use the past 30-40 years of database and distributed systems research to create high performance, reliable, consistent data storage and fast query processing systems? nah, just turn every company into terabytes of unstructured nested json graveyards, but somehow still enforce a “client-side strict schema” through some orm wrappers, yup, that’s the play for high performance and safety.
those bullet points above there are enough for at least a bilion dollars in industry value (“learnings” as they say). here’s a couple more for free:
- for the love of all that is tech, stop using cloudflare. stop centralizing your traffic through a global failure gateway. it’s not worth it. yes, you may have to actually learn something instead of valu-maxxxxxxxxing all your “ONLY WORK ON CORPORATE VALUE PROJECTS AND NETWORKING IS NOT A CORE COMPENTENCY FOR OUR TECH INFRASTRUCTURE COMPANY” brain damage, but you’ll be better off if you actually run things yourself? knowledge is power, etc?
- and, like, why do multiple $100+ billion companies go offline when cloudflare is down? linkedin can’t be online if cloudflare is down? all the power of your global azure network and you’re fronted by… cloudflare? trillion dollar AI companies who can’t seem to understand how computers work all go offline when cloudflare goes down? does every company think “the internet” is like running a cell phone network where you can’t possibly run “your own node” into it, so you have to outsource everything every day or else “you’re not targeting your core compentencies” or something? gah, learn how technology works maybe, all you trillion dollar companies run by people without enough experience to actually build modern things?
- “guess and check” is not a professional strategy.
- the modern mindset meancing most middling tech spheres has turned into “i can do anything because i have google. i can just look anything up so we never need to hire anybody with more than 1-3 years experience.”
- then, next thing you know, you’re running 100 servers or 18,000 containers with no performance monitoring, no network monitoring, no security monitoring, no access controls, no centralized config management, no ability to do anything other than “restart things” when something goes wrong instead of investigating because, maybe, just maybe, it takes more than “look it up when you need it but otherwise we are operating from absolute professional ignorance” isn’t actually how to run companies? maybe? nah, that can’t be it. just let facebook keep paying random people in their 20s $1B to $15B because they were “born super geniuses” and experience doesn’t actually matter.
in short, why not pay me $15 billion dollars to run your AI department into the ground instead of random tech oligarch in-group kids? call now, agents are standing by to help you win the world.
stay tuned for opsmas day 5 where we teach you how to turn your computer into a silicon servant of the all seeing technoeye. bet you can’t wait.