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-rw-r--r--tools/perf/Documentation/perf-trace.txt16
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index 3b3552a..fe19811 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -23,29 +23,45 @@ analysis phases.
OPTIONS
-------
+-a::
--all-cpus::
System-wide collection from all CPUs.
-e::
--expr::
List of events to show, currently only syscall names.
+ Prefixing with ! shows all syscalls but the ones specified. You may
+ need to escape it.
+
+-o::
+--output=::
+ Output file name.
-p::
--pid=::
Record events on existing process ID (comma separated list).
+-t::
--tid=::
Record events on existing thread ID (comma separated list).
+-u::
--uid=::
Record events in threads owned by uid. Name or number.
+-v::
+--verbose=::
+ Verbosity level.
+
+-i::
--no-inherit::
Child tasks do not inherit counters.
+-m::
--mmap-pages=::
Number of mmap data pages. Must be a power of two.
+-C::
--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.
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