cdadf0097cdca06c497ffaeb5982e028c6e4ed38 |
|
05-Oct-2010 |
Tejun Heo <tj@kernel.org> |
workqueue: add queue_work and activate_work trace points 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>
|
97bd234701b2b39a0e749c1fe0e44f1d14c94292 |
|
05-Oct-2010 |
Tejun Heo <tj@kernel.org> |
workqueue: prepare for more tracepoints 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>
|
e36c886a0f9d624377977fa6cae309cfd7f362fa |
|
21-Aug-2010 |
Arjan van de Ven <arjan@linux.intel.com> |
workqueue: Add basic tracepoints to track workqueue execution 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>
|
64166699752006f1a23a9cf7c96ae36654ccfc2c |
|
29-Jun-2010 |
Tejun Heo <tj@kernel.org> |
workqueue: temporarily remove workqueue tracing 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>
|
382ece710bf88b08440b598731361e5a47582b62 |
|
26-Nov-2009 |
Li Zefan <lizf@cn.fujitsu.com> |
tracing: Convert some workqueue events to DEFINE_EVENT 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>
|
9961079348d43dddb1f21118c17f054f63bbaa05 |
|
21-Sep-2009 |
Anton Blanchard <anton@samba.org> |
tracing/workqueue: Use %pf in workqueue trace events 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>
|
d0b6e04a4cd8360e3c9c419f7c30a3081a0c142a |
|
13-Jul-2009 |
Li Zefan <lizf@cn.fujitsu.com> |
tracing/events: Move TRACE_SYSTEM outside of include guard 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>
|
fb39125fd79a25c5002f3b45cf4c80e3fa6b961b |
|
17-Apr-2009 |
Zhaolei <zhaolei@cn.fujitsu.com> |
ftrace, workqueuetrace: make workqueue tracepoints use TRACE_EVENT macro 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>
|