Messages in this thread | | | Subject | Re: [PATCH v1 0/5] perf report: Support sorting all blocks by cycles | From | "Jin, Yao" <> | Date | Tue, 15 Oct 2019 10:00:19 +0800 |
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On 10/14/2019 11:32 PM, Jiri Olsa wrote: > On Tue, Oct 08, 2019 at 03:04:57PM +0800, Jin Yao wrote: >> It would be useful to support sorting for all blocks by the >> sampled cycles percent per block. This is useful to concentrate >> on the globally busiest/slowest blocks. >> >> This patch series implements a new sort option "total_cycles" which >> sorts all blocks by 'Sampled Cycles%'. The 'Sampled Cycles%' is >> block sampled cycles aggregation / total sampled cycles >> >> For example, >> >> perf record -b ./div >> perf report -s total_cycles --stdio >> >> # To display the perf.data header info, please use --header/--header-only options. >> # >> # >> # Total Lost Samples: 0 >> # >> # Samples: 2M of event 'cycles' >> # Event count (approx.): 2753248 >> # >> # Sampled Cycles% Sampled Cycles Avg Cycles% Avg Cycles [Program Block Range] Shared Object >> # ............... .............. ........... .......... ................................................................. .................... >> # >> 26.04% 2.8M 0.40% 18 [div.c:42 -> div.c:39] div >> 15.17% 1.2M 0.16% 7 [random_r.c:357 -> random_r.c:380] libc-2.27.so >> 5.11% 402.0K 0.04% 2 [div.c:27 -> div.c:28] div >> 4.87% 381.6K 0.04% 2 [random.c:288 -> random.c:291] libc-2.27.so >> 4.53% 381.0K 0.04% 2 [div.c:40 -> div.c:40] div >> 3.85% 300.9K 0.02% 1 [div.c:22 -> div.c:25] div >> 3.08% 241.1K 0.02% 1 [rand.c:26 -> rand.c:27] libc-2.27.so >> 3.06% 240.0K 0.02% 1 [random.c:291 -> random.c:291] libc-2.27.so >> 2.78% 215.7K 0.02% 1 [random.c:298 -> random.c:298] libc-2.27.so >> 2.52% 198.3K 0.02% 1 [random.c:293 -> random.c:293] libc-2.27.so >> 2.36% 184.8K 0.02% 1 [rand.c:28 -> rand.c:28] libc-2.27.so >> 2.33% 180.5K 0.02% 1 [random.c:295 -> random.c:295] libc-2.27.so >> 2.28% 176.7K 0.02% 1 [random.c:295 -> random.c:295] libc-2.27.so >> 2.20% 168.8K 0.02% 1 [rand@plt+0 -> rand@plt+0] div >> 1.98% 158.2K 0.02% 1 [random_r.c:388 -> random_r.c:388] libc-2.27.so >> 1.57% 123.3K 0.02% 1 [div.c:42 -> div.c:44] div >> 1.44% 116.0K 0.42% 19 [random_r.c:357 -> random_r.c:394] libc-2.27.so >> ...... >> >> This patch series supports both stdio and tui. And also with the supporting >> of --percent-limit. >> >> Jin Yao (5): >> perf util: Create new block.h/block.c for block related functions >> perf util: Count the total cycles of all samples >> perf report: Sort by sampled cycles percent per block for stdio >> perf report: Support --percent-limit for total_cycles >> perf report: Sort by sampled cycles percent per block for tui > > sry for delay, but I can no longer apply this > could you please rebase? >
Sure, I'd like to rebase to latest perf/core branch. I will send v2 soon. :)
Thanks Jin Yao
> thanks, > jirka >
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