mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
e3d7e183dc
[acme@doppio pahole]$ perf report -ns comm,dso,symbol -d /lib64/libc-2.10.1.so -C pahole | head -17 21.94% 32101 [.] _int_malloc 20.10% 29402 [.] __GI_strcmp 16.77% 24533 [.] __tsearch 12.61% 18450 [.] malloc_consolidate 6.42% 9394 [.] _int_free 6.28% 9191 [.] __tfind 4.56% 6678 [.] __GI___libc_free 4.46% 6520 [.] _IO_vfprintf_internal 2.59% 3786 [.] __malloc 1.17% 1716 [.] __GI_memcpy [acme@doppio pahole]$ Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1247325517-12272-5-git-send-email-acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
54 lines
1.1 KiB
Plaintext
54 lines
1.1 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
|
|
-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.
|
|
|
|
SEE ALSO
|
|
--------
|
|
linkperf:perf-stat[1]
|