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So that we can ask for all but a set of syscalls to be traced. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-9j6hvap23qanyl96wx4mrj9k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
76 lines
1.6 KiB
Plaintext
76 lines
1.6 KiB
Plaintext
perf-trace(1)
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=============
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NAME
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----
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perf-trace - strace inspired tool
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SYNOPSIS
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--------
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[verse]
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'perf trace'
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DESCRIPTION
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-----------
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This command will show the events associated with the target, initially
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syscalls, but other system events like pagefaults, task lifetime events,
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scheduling events, etc.
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Initially this is a live mode only tool, but eventually will work with
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perf.data files like the other tools, allowing a detached 'record' from
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analysis phases.
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OPTIONS
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-------
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-a::
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--all-cpus::
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System-wide collection from all CPUs.
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-e::
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--expr::
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List of events to show, currently only syscall names.
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Prefixing with ! shows all syscalls but the ones specified. You may
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need to escape it.
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-o::
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--output=::
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Output file name.
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-p::
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--pid=::
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Record events on existing process ID (comma separated list).
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-t::
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--tid=::
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Record events on existing thread ID (comma separated list).
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-u::
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--uid=::
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Record events in threads owned by uid. Name or number.
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-i::
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--no-inherit::
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Child tasks do not inherit counters.
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-m::
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--mmap-pages=::
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Number of mmap data pages. Must be a power of two.
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-C::
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--cpu::
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Collect samples only on the list of CPUs provided. Multiple CPUs can be provided as a
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comma-separated list with no space: 0,1. Ranges of CPUs are specified with -: 0-2.
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In per-thread mode with inheritance mode on (default), Events are captured only when
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the thread executes on the designated CPUs. Default is to monitor all CPUs.
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--duration:
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Show only events that had a duration greater than N.M ms.
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--sched:
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Accrue thread runtime and provide a summary at the end of the session.
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SEE ALSO
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--------
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linkperf:perf-record[1], linkperf:perf-script[1]
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