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authorHitoshi Mitake <mitake@dcl.info.waseda.ac.jp>2009-11-17 18:20:09 +0300
committerIngo Molnar <mingo@elte.hu>2009-11-19 08:21:48 +0300
commit827f3b4974c5db2968d4979fe6a0ae00ab37bdd8 (patch)
tree63d9a4b655553c484b05137e06b69d578c9a66a4 /tools/perf/builtin-bench.c
parentb269876c8d57fb8c801bea1fc34b461646c5abd0 (diff)
downloadlinux-827f3b4974c5db2968d4979fe6a0ae00ab37bdd8.tar.xz
perf bench: Add memcpy() benchmark
'perf bench mem memcpy' is a benchmark suite for measuring memcpy() performance. Example on a Intel(R) Core(TM)2 Duo CPU E6850 @ 3.00GHz: | % perf bench mem memcpy -l 1GB | # Running mem/memcpy benchmark... | # Copying 1MB Bytes from 0xb7d98008 to 0xb7e99008 ... | | 726.216412 MB/Sec Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1258471212-30281-1-git-send-email-mitake@dcl.info.waseda.ac.jp> [ v2: updated changelog, clarified history of builtin-bench.c ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/builtin-bench.c')
-rw-r--r--tools/perf/builtin-bench.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c
index 90c39baae0de..e043eb83092a 100644
--- a/tools/perf/builtin-bench.c
+++ b/tools/perf/builtin-bench.c
@@ -12,6 +12,7 @@
*
* Available subsystem list:
* sched ... scheduler and IPC mechanism
+ * mem ... memory access performance
*
*/
@@ -43,6 +44,15 @@ static struct bench_suite sched_suites[] = {
NULL }
};
+static struct bench_suite mem_suites[] = {
+ { "memcpy",
+ "Simple memory copy in various ways",
+ bench_mem_memcpy },
+ { NULL,
+ NULL,
+ NULL }
+};
+
struct bench_subsys {
const char *name;
const char *summary;
@@ -53,9 +63,12 @@ static struct bench_subsys subsystems[] = {
{ "sched",
"scheduler and IPC mechanism",
sched_suites },
+ { "mem",
+ "memory access performance",
+ mem_suites },
{ NULL,
NULL,
- NULL }
+ NULL }
};
static void dump_suites(int subsys_index)