perf-trace.txt (cf40a76e7d5874bb25f4404eecc58a2e033af885) perf-trace.txt (591421e151ddf95e43d690a5c9b291d8e1cb8065)
1perf-trace(1)
2=============
3
4NAME
5----
6perf-trace - strace inspired tool
7
8SYNOPSIS

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81
82-C::
83--cpu::
84Collect samples only on the list of CPUs provided. Multiple CPUs can be provided as a
85comma-separated list with no space: 0,1. Ranges of CPUs are specified with -: 0-2.
86In per-thread mode with inheritance mode on (default), Events are captured only when
87the thread executes on the designated CPUs. Default is to monitor all CPUs.
88
1perf-trace(1)
2=============
3
4NAME
5----
6perf-trace - strace inspired tool
7
8SYNOPSIS

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81
82-C::
83--cpu::
84Collect samples only on the list of CPUs provided. Multiple CPUs can be provided as a
85comma-separated list with no space: 0,1. Ranges of CPUs are specified with -: 0-2.
86In per-thread mode with inheritance mode on (default), Events are captured only when
87the thread executes on the designated CPUs. Default is to monitor all CPUs.
88
89--duration:
89--duration::
90 Show only events that had a duration greater than N.M ms.
91
90 Show only events that had a duration greater than N.M ms.
91
92--sched:
92--sched::
93 Accrue thread runtime and provide a summary at the end of the session.
94
93 Accrue thread runtime and provide a summary at the end of the session.
94
95-i
96--input
95-i::
96--input::
97 Process events from a given perf data file.
98
97 Process events from a given perf data file.
98
99-T
100--time
99-T::
100--time::
101 Print full timestamp rather time relative to first sample.
102
103--comm::
104 Show process COMM right beside its ID, on by default, disable with --no-comm.
105
106-s::
107--summary::
108 Show only a summary of syscalls by thread with min, max, and average times
109 (in msec) and relative stddev.
110
111-S::
112--with-summary::
113 Show all syscalls followed by a summary by thread with min, max, and
114 average times (in msec) and relative stddev.
115
116--tool_stats::
117 Show tool stats such as number of times fd->pathname was discovered thru
118 hooking the open syscall return + vfs_getname or via reading /proc/pid/fd, etc.
119
101 Print full timestamp rather time relative to first sample.
102
103--comm::
104 Show process COMM right beside its ID, on by default, disable with --no-comm.
105
106-s::
107--summary::
108 Show only a summary of syscalls by thread with min, max, and average times
109 (in msec) and relative stddev.
110
111-S::
112--with-summary::
113 Show all syscalls followed by a summary by thread with min, max, and
114 average times (in msec) and relative stddev.
115
116--tool_stats::
117 Show tool stats such as number of times fd->pathname was discovered thru
118 hooking the open syscall return + vfs_getname or via reading /proc/pid/fd, etc.
119
120-f::
121--force::
122 Don't complain, do it.
123
120-F=[all|min|maj]::
121--pf=[all|min|maj]::
122 Trace pagefaults. Optionally, you can specify whether you want minor,
123 major or all pagefaults. Default value is maj.
124
125--syscalls::
126 Trace system calls. This options is enabled by default, disable with
127 --no-syscalls.

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154
155--min-stack::
156 Set the stack depth limit when parsing the callchain, anything
157 below the specified depth will be ignored. Disabled by default.
158
159 Implies '--call-graph dwarf' when --call-graph not present on the
160 command line, on systems where DWARF unwinding was built in.
161
124-F=[all|min|maj]::
125--pf=[all|min|maj]::
126 Trace pagefaults. Optionally, you can specify whether you want minor,
127 major or all pagefaults. Default value is maj.
128
129--syscalls::
130 Trace system calls. This options is enabled by default, disable with
131 --no-syscalls.

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158
159--min-stack::
160 Set the stack depth limit when parsing the callchain, anything
161 below the specified depth will be ignored. Disabled by default.
162
163 Implies '--call-graph dwarf' when --call-graph not present on the
164 command line, on systems where DWARF unwinding was built in.
165
166--print-sample::
167 Print the PERF_RECORD_SAMPLE PERF_SAMPLE_ info for the
168 raw_syscalls:sys_{enter,exit} tracepoints, for debugging.
169
162--proc-map-timeout::
163 When processing pre-existing threads /proc/XXX/mmap, it may take a long time,
164 because the file may be huge. A time out is needed in such cases.
165 This option sets the time out limit. The default value is 500 ms.
166
167PAGEFAULTS
168----------
169

--- 38 unchanged lines hidden --- 		170--proc-map-timeout::
171 When processing pre-existing threads /proc/XXX/mmap, it may take a long time,
172 because the file may be huge. A time out is needed in such cases.
173 This option sets the time out limit. The default value is 500 ms.
174
175PAGEFAULTS
176----------
177

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