perf-trace.txt 1.3 KB
Newer Older
A
Arnaldo Carvalho de Melo 已提交
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
perf-trace(1)
=============

NAME
----
perf-trace - strace inspired tool

SYNOPSIS
--------
[verse]
'perf trace'

DESCRIPTION
-----------
This command will show the events associated with the target, initially
syscalls, but other system events like pagefaults, task lifetime events,
scheduling events, etc.

Initially this is a live mode only tool, but eventually will work with
perf.data files like the other tools, allowing a detached 'record' from
analysis phases.

OPTIONS
-------

--all-cpus::
        System-wide collection from all CPUs.

-p::
--pid=::
	Record events on existing process ID (comma separated list).

--tid=::
        Record events on existing thread ID (comma separated list).

--uid=::
        Record events in threads owned by uid. Name or number.

--no-inherit::
	Child tasks do not inherit counters.

--mmap-pages=::
	Number of mmap data pages. Must be a power of two.

--cpu::
Collect samples only on the list of CPUs provided. Multiple CPUs can be provided as a
comma-separated list with no space: 0,1. Ranges of CPUs are specified with -: 0-2.
In per-thread mode with inheritance mode on (default), Events are captured only when
the thread executes on the designated CPUs. Default is to monitor all CPUs.

51 52 53
--duration:
	Show only events that had a duration greater than N.M ms.

A
Arnaldo Carvalho de Melo 已提交
54 55 56
SEE ALSO
--------
linkperf:perf-record[1], linkperf:perf-script[1]