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authorSeeteena Thoufeek <s1seetee@linux.vnet.ibm.com>2018-06-08 16:32:28 +0530
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-06-08 13:41:30 -0300
commitfad76d4333fe73cf3f73704aa34d4ce523b1c458 (patch)
tree6d1c8d830f61c72b465c264f79fe23c9ef045725 /tools/perf
parent4c8205273626f27b9e5a64bdc194ab483a8cce66 (diff)
downloadop-kernel-dev-fad76d4333fe73cf3f73704aa34d4ce523b1c458.zip
op-kernel-dev-fad76d4333fe73cf3f73704aa34d4ce523b1c458.tar.gz
perf script: Show hw-cache events
'perf script' fails to report hardware cache events (PERF_TYPE_HW_CACHE) where as 'perf report' shows the samples. Fix it. Ex, # perf record -e L1-dcache-loads ./a.out [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.008 MB perf.data (11 samples)] Before patch: # perf script | wc -l 0 After patch: # perf script | wc -l 11 Committer testing: [root@jouet ~]# perf script | head -30 | tail Timer 9803 [2] 8.963330: 1554 L1-dcache-loads: 7ffef89baae4 __vdso_clock_gettime+0xf4 ([vdso]) swapper 0 [2] 8.963343: 5626 L1-dcache-loads: ffffffffa66f4f6b cpuidle_not_av+0xb (/lib/modules/4.17.0-rc5/build/vmlinux) firefox 4853 [2] 8.964070: 18935 L1-dcache-loads: 7f0b9a00dc30 xcb_poll_for_event+0x0 (/usr/lib64/libxcb.so.1.1.0) Softwar~cTh 4928 [2] 8.964548: 15928 L1-dcache-loads: ffffffffa60d795c update_curr+0x10c (/lib/modules/4.17.0-rc5/build/vmlinux) firefox 4853 [2] 8.964675: 14978 L1-dcache-loads: ffffffffa6897018 mutex_unlock+0x18 (/lib/modules/4.17.0-rc5/build/vmlinux) gnome-shell 2026 [3] 8.964693: 50670 L1-dcache-loads: 7fa08854de6d g_source_iter_next+0x6d (/usr/lib64/libglib-2.0.so.0.5400.3) Compositor 4929 [1] 8.964784: 71772 L1-dcache-loads: 7f0b936bf078 [unknown] (/usr/lib64/firefox/libxul.so) Xwayland 2096 [2] 8.964919: 16799 L1-dcache-loads: 7f68ce2fcb8a glXGetCurrentContext+0x1a (/usr/lib64/libGLX.so.0.0.0) gnome-shell 2026 [3] 8.964997: 50670 L1-dcache-loads: 7fa08854de6d g_source_iter_next+0x6d (/usr/lib64/libglib-2.0.so.0.5400.3) [root@jouet ~]# Signed-off-by: Seeteena Thoufeek <s1seetee@linux.vnet.ibm.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1528455748-20087-1-git-send-email-s1seetee@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/builtin-script.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index b3bf355..a31d708 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -180,6 +180,18 @@ static struct {
PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE
},
+ [PERF_TYPE_HW_CACHE] = {
+ .user_set = false,
+
+ .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
+ PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
+ PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
+ PERF_OUTPUT_SYM | PERF_OUTPUT_SYMOFFSET |
+ PERF_OUTPUT_DSO | PERF_OUTPUT_PERIOD,
+
+ .invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
+ },
+
[PERF_TYPE_RAW] = {
.user_set = false,
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