summaryrefslogtreecommitdiffstats
path: root/tools/perf/util/event.h
diff options
context:
space:
mode:
authorArnaldo Carvalho de Melo <acme@redhat.com>2010-04-05 12:53:45 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2010-04-08 11:34:26 -0300
commiteed05fe70f96b04ebeb218b07ae8898e605f9b23 (patch)
treeb6cfaaca79ac4dbceaf9efbd3ae5549be033182d /tools/perf/util/event.h
parentc0ed55d2e4f600335193612725c0d7c8211a7a4a (diff)
downloadop-kernel-dev-eed05fe70f96b04ebeb218b07ae8898e605f9b23.zip
op-kernel-dev-eed05fe70f96b04ebeb218b07ae8898e605f9b23.tar.gz
perf tools: Reorganize some structs to save space
Using 'pahole --packable' I found some structs that could be reorganized to eliminate alignment holes, in some cases getting them to be cacheline multiples. [acme@doppio linux-2.6-tip]$ codiff perf.old ~/bin/perf builtin-annotate.c: struct perf_session | -8 struct perf_header | -8 2 structs changed builtin-diff.c: struct sample_data | -8 1 struct changed diff__process_sample_event | -8 1 function changed, 8 bytes removed, diff: -8 builtin-sched.c: struct sched_atom | -8 1 struct changed builtin-timechart.c: struct per_pid | -8 1 struct changed cmd_timechart | -16 1 function changed, 16 bytes removed, diff: -16 builtin-probe.c: struct perf_probe_point | -8 struct perf_probe_event | -8 2 structs changed opt_add_probe_event | -3 1 function changed, 3 bytes removed, diff: -3 util/probe-finder.c: struct probe_finder | -8 1 struct changed find_kprobe_trace_events | -16 1 function changed, 16 bytes removed, diff: -16 /home/acme/bin/perf: 4 functions changed, 43 bytes removed, diff: -43 [acme@doppio linux-2.6-tip]$ Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/event.h')
-rw-r--r--tools/perf/util/event.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index a33b949..7f7cf85 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -68,11 +68,11 @@ struct sample_data {
u64 addr;
u64 id;
u64 stream_id;
- u32 cpu;
u64 period;
- struct ip_callchain *callchain;
+ u32 cpu;
u32 raw_size;
void *raw_data;
+ struct ip_callchain *callchain;
};
#define BUILD_ID_SIZE 20
OpenPOWER on IntegriCloud