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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103/* SPDX-License-Identifier: GPL-2.0 *//* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * Authors: Waiman Long <longman@redhat.com> */
#ifndef LOCK_EVENT#define LOCK_EVENT(name) LOCKEVENT_ ## name,#endif
#ifdef CONFIG_QUEUED_SPINLOCKS#ifdef CONFIG_PARAVIRT_SPINLOCKS/* * Locking events for PV qspinlock. */LOCK_EVENT(pv_hash_hops) /* Average # of hops per hashing operation */LOCK_EVENT(pv_kick_unlock) /* # of vCPU kicks issued at unlock time */LOCK_EVENT(pv_kick_wake) /* # of vCPU kicks for pv_latency_wake */LOCK_EVENT(pv_latency_kick) /* Average latency (ns) of vCPU kick */LOCK_EVENT(pv_latency_wake) /* Average latency (ns) of kick-to-wakeup */LOCK_EVENT(pv_lock_stealing) /* # of lock stealing operations */LOCK_EVENT(pv_spurious_wakeup) /* # of spurious wakeups in non-head vCPUs */LOCK_EVENT(pv_wait_again) /* # of wait's after queue head vCPU kick */LOCK_EVENT(pv_wait_early) /* # of early vCPU wait's */LOCK_EVENT(pv_wait_head) /* # of vCPU wait's at the queue head */LOCK_EVENT(pv_wait_node) /* # of vCPU wait's at non-head queue node */#endif /* CONFIG_PARAVIRT_SPINLOCKS */
/* * Locking events for qspinlock * * Subtracting lock_use_node[234] from lock_slowpath will give you * lock_use_node1. */LOCK_EVENT(lock_pending) /* # of locking ops via pending code */LOCK_EVENT(lock_slowpath) /* # of locking ops via MCS lock queue */LOCK_EVENT(lock_use_node2) /* # of locking ops that use 2nd percpu node */LOCK_EVENT(lock_use_node3) /* # of locking ops that use 3rd percpu node */LOCK_EVENT(lock_use_node4) /* # of locking ops that use 4th percpu node */LOCK_EVENT(lock_no_node) /* # of locking ops w/o using percpu node */#endif /* CONFIG_QUEUED_SPINLOCKS */
/* * Locking events for Resilient Queued Spin Lock */LOCK_EVENT(rqspinlock_lock_timeout) /* # of locking ops that timeout */
/* * Locking events for rwsem */LOCK_EVENT(rwsem_sleep_reader) /* # of reader sleeps */LOCK_EVENT(rwsem_sleep_writer) /* # of writer sleeps */LOCK_EVENT(rwsem_wake_reader) /* # of reader wakeups */LOCK_EVENT(rwsem_wake_writer) /* # of writer wakeups */LOCK_EVENT(rwsem_opt_lock) /* # of opt-acquired write locks */LOCK_EVENT(rwsem_opt_fail) /* # of failed optspins */LOCK_EVENT(rwsem_opt_nospin) /* # of disabled optspins */LOCK_EVENT(rwsem_rlock) /* # of read locks acquired */LOCK_EVENT(rwsem_rlock_steal) /* # of read locks by lock stealing */LOCK_EVENT(rwsem_rlock_fast) /* # of fast read locks acquired */LOCK_EVENT(rwsem_rlock_fail) /* # of failed read lock acquisitions */LOCK_EVENT(rwsem_rlock_handoff) /* # of read lock handoffs */LOCK_EVENT(rwsem_wlock) /* # of write locks acquired */LOCK_EVENT(rwsem_wlock_fail) /* # of failed write lock acquisitions */LOCK_EVENT(rwsem_wlock_handoff) /* # of write lock handoffs */
/* * Locking events for rtlock_slowlock() */LOCK_EVENT(rtlock_slowlock) /* # of rtlock_slowlock() calls */LOCK_EVENT(rtlock_slow_acq1) /* # of locks acquired after wait_lock */LOCK_EVENT(rtlock_slow_acq2) /* # of locks acquired in for loop */LOCK_EVENT(rtlock_slow_sleep) /* # of sleeps */LOCK_EVENT(rtlock_slow_wake) /* # of wakeup's */
/* * Locking events for rt_mutex_slowlock() */LOCK_EVENT(rtmutex_slowlock) /* # of rt_mutex_slowlock() calls */LOCK_EVENT(rtmutex_slow_block) /* # of rt_mutex_slowlock_block() calls */LOCK_EVENT(rtmutex_slow_acq1) /* # of locks acquired after wait_lock */LOCK_EVENT(rtmutex_slow_acq2) /* # of locks acquired at the end */LOCK_EVENT(rtmutex_slow_acq3) /* # of locks acquired in *block() */LOCK_EVENT(rtmutex_slow_sleep) /* # of sleeps */LOCK_EVENT(rtmutex_slow_wake) /* # of wakeup's */LOCK_EVENT(rtmutex_deadlock) /* # of rt_mutex_handle_deadlock()'s */
/* * Locking events for lockdep */LOCK_EVENT(lockdep_acquire)LOCK_EVENT(lockdep_lock)LOCK_EVENT(lockdep_nocheck)