mirror of https://gitee.com/openkylin/linux.git
67 lines
1.5 KiB
Plaintext
67 lines
1.5 KiB
Plaintext
perf-report(1)
|
|
==============
|
|
|
|
NAME
|
|
----
|
|
perf-report - Read perf.data (created by perf record) and display the profile
|
|
|
|
SYNOPSIS
|
|
--------
|
|
[verse]
|
|
'perf report' [-i <file> | --input=file]
|
|
|
|
DESCRIPTION
|
|
-----------
|
|
This command displays the performance counter profile information recorded
|
|
via perf record.
|
|
|
|
OPTIONS
|
|
-------
|
|
-i::
|
|
--input=::
|
|
Input file name. (default: perf.data)
|
|
-d::
|
|
--dsos=::
|
|
Only consider symbols in these dsos. CSV that understands
|
|
file://filename entries.
|
|
-n::
|
|
--show-nr-samples::
|
|
Show the number of samples for each symbol
|
|
-T::
|
|
--threads::
|
|
Show per-thread event counters
|
|
-C::
|
|
--comms=::
|
|
Only consider symbols in these comms. CSV that understands
|
|
file://filename entries.
|
|
-S::
|
|
--symbols=::
|
|
Only consider these symbols. CSV that understands
|
|
file://filename entries.
|
|
|
|
-w::
|
|
--field-width=::
|
|
Force each column width to the provided list, for large terminal
|
|
readability.
|
|
|
|
-t::
|
|
--field-separator=::
|
|
|
|
Use a special separator character and don't pad with spaces, replacing
|
|
all occurances of this separator in symbol names (and other output)
|
|
with a '.' character, that thus it's the only non valid separator.
|
|
|
|
-g [type,min]::
|
|
--call-graph::
|
|
Display callchains using type and min percent threshold.
|
|
type can be either:
|
|
- flat: single column, linear exposure of callchains.
|
|
- graph: use a graph tree, displaying absolute overhead rates.
|
|
- fractal: like graph, but displays relative rates. Each branch of
|
|
the tree is considered as a new profiled object. +
|
|
Default: fractal,0.5.
|
|
|
|
SEE ALSO
|
|
--------
|
|
linkperf:perf-stat[1]
|