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https://github.com/haproxy/haproxy.git
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a8b2ce02b8
Haproxy is designed to be able to continue to run even under very low memory conditions. However this can sometimes have a serious impact on performance that it hard to diagnose. Let's report counters of failed pool and buffer allocations per thread in show activity.
76 lines
3.4 KiB
C
76 lines
3.4 KiB
C
/*
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* include/types/activity.h
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* This file contains structure declarations for activity measurements.
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*
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* Copyright (C) 2000-2018 Willy Tarreau - w@1wt.eu
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _TYPES_ACTIVITY_H
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#define _TYPES_ACTIVITY_H
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#include <common/config.h>
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#include <types/freq_ctr.h>
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/* per-thread activity reports. It's important that it's aligned on cache lines
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* because some elements will be updated very often. Most counters are OK on
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* 32-bit since this will be used during debugging sessions for troubleshooting
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* in iterative mode.
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*/
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struct activity {
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unsigned int loops; // complete loops in run_poll_loop()
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unsigned int wake_cache; // active fd_cache prevented poll() from sleeping
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unsigned int wake_tasks; // active tasks prevented poll() from sleeping
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unsigned int wake_signal; // pending signal prevented poll() from sleeping
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unsigned int poll_exp; // number of times poll() sees an expired timeout (includes wake_*)
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unsigned int poll_drop; // poller dropped a dead FD from the update list
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unsigned int poll_dead; // poller woke up with a dead FD
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unsigned int poll_skip; // poller skipped another thread's FD
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unsigned int fd_lock; // fd cache skipped a locked FD
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unsigned int conn_dead; // conn_fd_handler woke up on an FD indicating a dead connection
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unsigned int stream; // calls to process_stream()
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unsigned int ctxsw; // total number of context switches
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unsigned int tasksw; // total number of task switches
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unsigned int empty_rq; // calls to process_runnable_tasks() with nothing for the thread
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unsigned int long_rq; // process_runnable_tasks() left with tasks in the run queue
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unsigned int cpust_total; // sum of half-ms stolen per thread
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/* one cache line */
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struct freq_ctr cpust_1s; // avg amount of half-ms stolen over last second
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struct freq_ctr_period cpust_15s; // avg amount of half-ms stolen over last 15s
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unsigned int avg_loop_us; // average run time per loop over last 1024 runs
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unsigned int accepted; // accepted incoming connections
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unsigned int accq_pushed; // accept queue connections pushed
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unsigned int accq_full; // accept queue connection not pushed because full
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unsigned int pool_fail; // failed a pool allocation
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unsigned int buf_wait; // waited on a buffer allocation
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#if defined(DEBUG_DEV)
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/* keep these ones at the end */
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unsigned int ctr0; // general purposee debug counter
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unsigned int ctr1; // general purposee debug counter
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unsigned int ctr2; // general purposee debug counter
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#endif
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char __pad[0]; // unused except to check remaining room
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char __end[0] __attribute__((aligned(64))); // align size to 64.
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};
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#endif /* _TYPES_ACTIVITY_H */
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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