mirror of https://gitee.com/openkylin/linux.git
81 lines
1.7 KiB
Plaintext
81 lines
1.7 KiB
Plaintext
perf-timechart(1)
|
|
=================
|
|
|
|
NAME
|
|
----
|
|
perf-timechart - Tool to visualize total system behavior during a workload
|
|
|
|
SYNOPSIS
|
|
--------
|
|
[verse]
|
|
'perf timechart' [<timechart options>] {record} [<record options>]
|
|
|
|
DESCRIPTION
|
|
-----------
|
|
There are two variants of perf timechart:
|
|
|
|
'perf timechart record <command>' to record the system level events
|
|
of an arbitrary workload.
|
|
|
|
'perf timechart' to turn a trace into a Scalable Vector Graphics file,
|
|
that can be viewed with popular SVG viewers such as 'Inkscape'.
|
|
|
|
TIMECHART OPTIONS
|
|
-----------------
|
|
-o::
|
|
--output=::
|
|
Select the output file (default: output.svg)
|
|
-i::
|
|
--input=::
|
|
Select the input file (default: perf.data unless stdin is a fifo)
|
|
-w::
|
|
--width=::
|
|
Select the width of the SVG file (default: 1000)
|
|
-P::
|
|
--power-only::
|
|
Only output the CPU power section of the diagram
|
|
-T::
|
|
--tasks-only::
|
|
Don't output processor state transitions
|
|
-p::
|
|
--process::
|
|
Select the processes to display, by name or PID
|
|
|
|
--symfs=<directory>::
|
|
Look for files with symbols relative to this directory.
|
|
|
|
EXAMPLES
|
|
--------
|
|
|
|
$ perf timechart record git pull
|
|
|
|
[ perf record: Woken up 13 times to write data ]
|
|
[ perf record: Captured and wrote 4.253 MB perf.data (~185801 samples) ]
|
|
|
|
$ perf timechart
|
|
|
|
Written 10.2 seconds of trace to output.svg.
|
|
|
|
-n::
|
|
--proc-num::
|
|
Print task info for at least given number of tasks.
|
|
-t::
|
|
--topology::
|
|
Sort CPUs according to topology.
|
|
|
|
RECORD OPTIONS
|
|
--------------
|
|
-P::
|
|
--power-only::
|
|
Record only power-related events
|
|
-T::
|
|
--tasks-only::
|
|
Record only tasks-related events
|
|
-g::
|
|
--callchain::
|
|
Do call-graph (stack chain/backtrace) recording
|
|
|
|
SEE ALSO
|
|
--------
|
|
linkperf:perf-record[1]
|