Willy Tarreau 9d8c2a888b MINOR: activity: collect CPU time spent on memory allocations for each task ... When task profiling is enabled, the pool alloc/free code will measure the time it takes to perform memory allocation after a cache miss or memory freeing to the shared cache or OS. The time taken with the thread-local cache is never measured as measuring that time is very expensive compared to the pool access time. Here doing so costs around 2% performance at 2M req/s, only when task profiling is enabled, so this remains reasonable. The scheduler takes care of collecting that time and updating the sched_activity entry corresponding to the current task when task profiling is enabled. The goal clearly is to track places that are wasting CPU time allocating and releasing too often, or causing large evictions. This appears like this in "show profiling tasks aggr": Tasks activity over 11.428 sec till 0.000 sec ago: function calls cpu_tot cpu_avg lkw_avg lkd_avg mem_avg lat_avg process_stream 44183891 16.47m 22.36us 491.0ns 1.154us 1.000ns 101.1us h1_io_cb 57386064 4.011m 4.193us 20.00ns 16.00ns - 29.47us sc_conn_io_cb 42088024 49.04s 1.165us - - - 54.67us h1_timeout_task 438171 196.5ms 448.0ns - - - 100.1us srv_cleanup_toremove_conns 65 1.468ms 22.58us 184.0ns 87.00ns - 101.3us task_process_applet 3 508.0us 169.3us - 107.0us 1.847us 29.67us srv_cleanup_idle_conns 6 225.3us 37.55us 15.74us 36.84us - 49.47us accept_queue_process 2 45.62us 22.81us - - 4.949us 54.33us		2025-09-11 16:32:34 +02:00
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haproxy	MINOR: activity: collect CPU time spent on memory allocations for each task	2025-09-11 16:32:34 +02:00
import	CLEANUP: include: replace hand-rolled offsetof to avoid UB	2025-07-25 17:54:32 +02:00
make	BUILD: makefile: add a qinfo macro to pass info in quiet mode	2025-01-08 11:26:05 +01:00