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authorLi Zefan2009-11-24 13:27:11 +0800
committerIngo Molnar2009-11-24 08:49:51 +0100
commitb23d5767a5818caec8547d0bce1588b02bdecd30 (patch)
treece8d24b0df6421f5577977ec904cf8d37c9bc774 /tools
parent079d3f653134e2f2ac99dae28b08c0cc64268103 (diff)
perf kmem: Add help file
Add Documentation/perf-kmem.txt Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: linux-mm@kvack.org <linux-mm@kvack.org> LKML-Reference: <4B0B6EAF.80802@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/Documentation/perf-kmem.txt44
-rw-r--r--tools/perf/command-list.txt1
2 files changed, 45 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-kmem.txt b/tools/perf/Documentation/perf-kmem.txt
new file mode 100644
index 000000000000..44b0ce35c28a
--- /dev/null
+++ b/tools/perf/Documentation/perf-kmem.txt
@@ -0,0 +1,44 @@
+perf-kmem(1)
+==============
+
+NAME
+----
+perf-kmem - Tool to trace/measure kernel memory(slab) properties
+
+SYNOPSIS
+--------
+[verse]
+'perf kmem' {record} [<options>]
+
+DESCRIPTION
+-----------
+There's two variants of perf kmem:
+
+ 'perf kmem record <command>' to record the kmem events
+ of an arbitrary workload.
+
+ 'perf kmem' to report kernel memory statistics.
+
+OPTIONS
+-------
+-i <file>::
+--input=<file>::
+ Select the input file (default: perf.data)
+
+--stat=<caller|alloc>::
+ Select per callsite or per allocation statistics
+
+-s <key[,key2...]>::
+--sort=<key[,key2...]>::
+ Sort the output (default: frag,hit,bytes)
+
+-l <num>::
+--line=<num>::
+ Print n lines only
+
+--raw-ip::
+ Print raw ip instead of symbol
+
+SEE ALSO
+--------
+linkperf:perf-record[1]
diff --git a/tools/perf/command-list.txt b/tools/perf/command-list.txt
index d3a6e18e4a5e..02b09ea17a3e 100644
--- a/tools/perf/command-list.txt
+++ b/tools/perf/command-list.txt
@@ -14,3 +14,4 @@ perf-timechart mainporcelain common
perf-top mainporcelain common
perf-trace mainporcelain common
perf-probe mainporcelain common
+perf-kmem mainporcelain common