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path: root/include/trace/events/workqueue.h
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2013-02-14workqueue: rename cpu_workqueue to pool_workqueueTejun Heo1-5/+5
workqueue has moved away from global_cwqs to worker_pools and with the scheduled custom worker pools, wforkqueues will be associated with pools which don't have anything to do with CPUs. The workqueue code went through significant amount of changes recently and mass renaming isn't likely to hurt much additionally. Let's replace 'cpu' with 'pool' so that it reflects the current design. * s/struct cpu_workqueue_struct/struct pool_workqueue/ * s/cpu_wq/pool_wq/ * s/cwq/pwq/ This patch is purely cosmetic. Signed-off-by: Tejun Heo <tj@kernel.org>
2013-01-24workqueue: move global_cwq->cpu to worker_poolTejun Heo1-1/+1
Move gcwq->cpu to pool->cpu. This introduces a couple places where gcwq->pools[0].cpu is used. These will soon go away as gcwq is further reduced. This is part of an effort to remove global_cwq and make worker_pool the top level abstraction, which in turn will help implementing worker pools with user-specified attributes. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Lai Jiangshan <laijs@cn.fujitsu.com>
2012-07-13workqueue: factor out worker_pool from global_cwqTejun Heo1-1/+1
Move worklist and all worker management fields from global_cwq into the new struct worker_pool. worker_pool points back to the containing gcwq. worker and cpu_workqueue_struct are updated to point to worker_pool instead of gcwq too. This change is mechanical and doesn't introduce any functional difference other than rearranging of fields and an added level of indirection in some places. This is to prepare for multiple pools per gcwq. v2: Comment typo fixes as suggested by Namhyung. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org>
2012-04-10workqueue: Fix workqueue_execute_end() commentStephen Boyd1-1/+1
workqueue_execute_end() is called after the callback function, not before. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-10-05workqueue: add queue_work and activate_work trace pointsTejun Heo1-0/+53
These two tracepoints allow tracking when and how a work is queued and activated. This patch is based on Frederic's patch to add queue_work trace point. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com>
2010-10-05workqueue: prepare for more tracepointsTejun Heo1-13/+19
Define workqueue_work event class and use it for workqueue_execute_end trace point. Also, move trace/events/workqueue.h include downwards such that all struct definitions are visible to it. This is to prepare for more tracepoints and doesn't cause any functional change. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com>
2010-08-22workqueue: Add basic tracepoints to track workqueue executionArjan van de Ven1-0/+62
With the introduction of the new unified work queue thread pools, we lost one feature: It's no longer possible to know which worker is causing the CPU to wake out of idle. The result is that PowerTOP now reports a lot of "kworker/a:b" instead of more readable results. This patch adds a pair of tracepoints to the new workqueue code, similar in style to the timer/hrtimer tracepoints. With this pair of tracepoints, the next PowerTOP can correctly report which work item caused the wakeup (and how long it took): Interrupt (43) i915 time 3.51ms wakeups 141 Work ieee80211_iface_work time 0.81ms wakeups 29 Work do_dbs_timer time 0.55ms wakeups 24 Process Xorg time 21.36ms wakeups 4 Timer sched_rt_period_timer time 0.01ms wakeups 1 Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-29workqueue: temporarily remove workqueue tracingTejun Heo1-92/+0
Strip tracing code from workqueue and remove workqueue tracing. This is temporary measure till concurrency managed workqueue is complete. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com>
2009-11-26tracing: Convert some workqueue events to DEFINE_EVENTLi Zefan1-15/+7
Use DECLARE_EVENT_CLASS to remove duplicate code: text data bss dec hex filename 13171 800 72 14043 36db kernel/workqueue.o.old 12243 800 68 13111 3337 kernel/workqueue.o Two events are converted: workqueue: workqueue_insertion, workqueue_execution No change in functionality. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <4B0E289F.5010104@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-23tracing/workqueue: Use %pf in workqueue trace eventsAnton Blanchard1-2/+2
Using %pf instead of %pF supresses printing of the function offset which will always be 0 in the case of worklet functions. Signed-off-by: Anton Blanchard <anton@samba.org> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Zhaolei <zhaolei@cn.fujitsu.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <20090922024033.GB31801@kryten> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2009-07-13tracing/events: Move TRACE_SYSTEM outside of include guardLi Zefan1-3/+3
If TRACE_INCLDUE_FILE is defined, <trace/events/TRACE_INCLUDE_FILE.h> will be included and compiled, otherwise it will be <trace/events/TRACE_SYSTEM.h> So TRACE_SYSTEM should be defined outside of #if proctection, just like TRACE_INCLUDE_FILE. Imaging this scenario: #include <trace/events/foo.h> -> TRACE_SYSTEM == foo ... #include <trace/events/bar.h> -> TRACE_SYSTEM == bar ... #define CREATE_TRACE_POINTS #include <trace/events/foo.h> -> TRACE_SYSTEM == bar !!! and then bar.h will be included and compiled. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <4A5A9CF1.2010007@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-02ftrace, workqueuetrace: make workqueue tracepoints use TRACE_EVENT macroZhaolei1-0/+100
v3: zhaolei@cn.fujitsu.com: Change TRACE_EVENT definition to new format introduced by Steven Rostedt: consolidate trace and trace_event headers v2: kosaki@jp.fujitsu.com: print the function names instead of addr, and zap the work addr v1: zhaolei@cn.fujitsu.com: Make workqueue tracepoints use TRACE_EVENT macro TRACE_EVENT is a more generic way to define tracepoints. Doing so adds these new capabilities to the tracepoints: - zero-copy and per-cpu splice() tracing - binary tracing without printf overhead - structured logging records exposed under /debug/tracing/events - trace events embedded in function tracer output and other plugins - user-defined, per tracepoint filter expressions Then, this patch converts DEFINE_TRACE to TRACE_EVENT in workqueue related tracepoints. [ Impact: expand workqueue tracer to events tracing ] Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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