Tom Zanussi 860f9f6b02 tracing: Add usecs modifier for hist trigger timestamps ...

Appending .usecs onto a common_timestamp field will cause the
timestamp value to be in microseconds instead of the default
nanoseconds.  A typical latency histogram using usecs would look like
this:

   # echo 'hist:keys=pid,prio:ts0=common_timestamp.usecs ...
   # echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0 ...

This also adds an external trace_clock_in_ns() to trace.c for the
timestamp conversion.

Link: http://lkml.kernel.org/r/4e813705a170b3e13e97dc3135047362fb1a39f3.1516069914.git.tom.zanussi@linux.intel.com

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

2018-03-10 16:05:54 -05:00

..

postprocess

trace-vmscan-postprocess: sync with tracepoints updates

2017-02-22 16:41:29 -08:00

coresight-cpu-debug.txt

doc: coresight: correct usage for disabling idle states

2017-10-20 15:03:06 +02:00

coresight.txt

coresight: stm: adding driver for CoreSight STM component

2016-05-03 14:59:30 -07:00

events-kmem.txt

mm-tracepoint: rename page-free events

2012-01-10 16:30:41 -08:00

events-msr.txt

x86, tracing, perf: Add trace point for MSR accesses

2015-12-06 12:56:10 +01:00

events-nmi.txt

x86: Add NMI duration tracepoints

2013-06-23 11:52:58 +02:00

events-power.txt

PM / QoS: Rename device resume latency QoS items

2014-02-11 00:35:23 +01:00

events.txt

tracing: Move hist trigger Documentation to histogram.txt

2018-03-10 16:05:48 -05:00

ftrace-design.txt

ftrace: Add return address pointer to ftrace_ret_stack

2016-08-24 12:15:14 +02:00

ftrace-uses.rst

docs: ftrace-uses.rst fix varios code-block directives

2017-12-21 13:39:31 -07:00

ftrace.txt

tracing: Add timestamp_mode trace file

2018-03-10 16:05:51 -05:00

function-graph-fold.vim

tracing: Add vim script to enable folding for function_graph traces

2009-08-26 00:32:04 -04:00

histogram.txt

tracing: Add usecs modifier for hist trigger timestamps

2018-03-10 16:05:54 -05:00

hwlat_detector.txt

tracing: Have hwlat trace migrate across tracing_cpumask CPUs

2016-09-02 12:47:54 -04:00

intel_th.txt

Documentation: fix ref to trace stm content

2017-10-19 12:57:42 -06:00

kprobetrace.txt

New features for this release:

2017-05-03 18:41:21 -07:00

mmiotrace.txt

Documentation: Update mmiotrace.txt

2009-12-20 06:18:23 +01:00

ring-buffer-design.txt

doc: fix double words

2014-03-21 13:16:58 +01:00

stm.txt

stm class: Document the stm_ftrace

2017-08-25 17:58:34 +03:00

tracepoint-analysis.txt

mm-tracepoint: fix documentation and examples

2012-01-10 16:30:41 -08:00

tracepoints.txt

tracing: Add trace_<tracepoint>_enabled() function

2014-05-07 12:10:51 -04:00

uprobetracer.txt

perf/core: Rename CONFIG_[UK]PROBE_EVENT to CONFIG_[UK]PROBE_EVENTS

2017-03-01 10:26:39 +01:00