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authorLi Zefan <lizf@cn.fujitsu.com>2009-11-24 13:27:11 +0800
committerIngo Molnar <mingo@elte.hu>2009-11-24 08:49:51 +0100
commitb23d5767a5818caec8547d0bce1588b02bdecd30 (patch)
treece8d24b0df6421f5577977ec904cf8d37c9bc774 /tools/perf/Documentation/perf-kmem.txt
parent079d3f653134e2f2ac99dae28b08c0cc64268103 (diff)
downloadlinux-b23d5767a5818caec8547d0bce1588b02bdecd30.tar.gz
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>
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+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]