diff options
| author | Dmitry Vyukov <dvyukov@google.com> | 2025-02-13 10:08:18 +0100 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2025-02-18 14:04:32 -0800 |
| commit | ee1cffbe24e7dc129c737a5f433b35e2ce0bdd78 (patch) | |
| tree | e9ab50befcc526f3ed95cb301051a6174c89593e /tools/perf/ui/browsers | |
| parent | 61b6b31c2f51f8757ecc65df8a4f5eeff029a804 (diff) | |
perf report: Add latency output field
Latency output field is similar to overhead, but represents overhead for
latency rather than CPU consumption. It's re-scaled from overhead by dividing
weight by the current parallelism level at the time of the sample.
It effectively models profiling with 1 sample taken per unit of wall-clock
time rather than unit of CPU time.
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Link: https://lore.kernel.org/r/b6269518758c2166e6ffdc2f0e24cfdecc8ef9c1.1739437531.git.dvyukov@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'tools/perf/ui/browsers')
| -rw-r--r-- | tools/perf/ui/browsers/hists.c | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index 49ba82bf3391..35c10509b797 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -1226,7 +1226,7 @@ int __hpp__slsmg_color_printf(struct perf_hpp *hpp, const char *fmt, ...) return ret; } -#define __HPP_COLOR_PERCENT_FN(_type, _field) \ +#define __HPP_COLOR_PERCENT_FN(_type, _field, _fmttype) \ static u64 __hpp_get_##_field(struct hist_entry *he) \ { \ return he->stat._field; \ @@ -1238,10 +1238,10 @@ hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt, \ struct hist_entry *he) \ { \ return hpp__fmt(fmt, hpp, he, __hpp_get_##_field, " %*.2f%%", \ - __hpp__slsmg_color_printf, true); \ + __hpp__slsmg_color_printf, _fmttype); \ } -#define __HPP_COLOR_ACC_PERCENT_FN(_type, _field) \ +#define __HPP_COLOR_ACC_PERCENT_FN(_type, _field, _fmttype) \ static u64 __hpp_get_acc_##_field(struct hist_entry *he) \ { \ return he->stat_acc->_field; \ @@ -1262,15 +1262,18 @@ hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt, \ return ret; \ } \ return hpp__fmt(fmt, hpp, he, __hpp_get_acc_##_field, \ - " %*.2f%%", __hpp__slsmg_color_printf, true); \ + " %*.2f%%", __hpp__slsmg_color_printf, \ + _fmttype); \ } -__HPP_COLOR_PERCENT_FN(overhead, period) -__HPP_COLOR_PERCENT_FN(overhead_sys, period_sys) -__HPP_COLOR_PERCENT_FN(overhead_us, period_us) -__HPP_COLOR_PERCENT_FN(overhead_guest_sys, period_guest_sys) -__HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us) -__HPP_COLOR_ACC_PERCENT_FN(overhead_acc, period) +__HPP_COLOR_PERCENT_FN(overhead, period, PERF_HPP_FMT_TYPE__PERCENT) +__HPP_COLOR_PERCENT_FN(latency, latency, PERF_HPP_FMT_TYPE__LATENCY) +__HPP_COLOR_PERCENT_FN(overhead_sys, period_sys, PERF_HPP_FMT_TYPE__PERCENT) +__HPP_COLOR_PERCENT_FN(overhead_us, period_us, PERF_HPP_FMT_TYPE__PERCENT) +__HPP_COLOR_PERCENT_FN(overhead_guest_sys, period_guest_sys, PERF_HPP_FMT_TYPE__PERCENT) +__HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us, PERF_HPP_FMT_TYPE__PERCENT) +__HPP_COLOR_ACC_PERCENT_FN(overhead_acc, period, PERF_HPP_FMT_TYPE__PERCENT) +__HPP_COLOR_ACC_PERCENT_FN(latency_acc, latency, PERF_HPP_FMT_TYPE__LATENCY) #undef __HPP_COLOR_PERCENT_FN #undef __HPP_COLOR_ACC_PERCENT_FN @@ -1279,6 +1282,8 @@ void hist_browser__init_hpp(void) { perf_hpp__format[PERF_HPP__OVERHEAD].color = hist_browser__hpp_color_overhead; + perf_hpp__format[PERF_HPP__LATENCY].color = + hist_browser__hpp_color_latency; perf_hpp__format[PERF_HPP__OVERHEAD_SYS].color = hist_browser__hpp_color_overhead_sys; perf_hpp__format[PERF_HPP__OVERHEAD_US].color = @@ -1289,6 +1294,8 @@ void hist_browser__init_hpp(void) hist_browser__hpp_color_overhead_guest_us; perf_hpp__format[PERF_HPP__OVERHEAD_ACC].color = hist_browser__hpp_color_overhead_acc; + perf_hpp__format[PERF_HPP__LATENCY_ACC].color = + hist_browser__hpp_color_latency_acc; res_sample_init(); } |