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81d5f95819
Adding 'wdiff' as new computation way to compare hist entries.
If specified the 'Weighted diff' column is displayed with value 'd'
computed as:
d = B->period * WEIGHT-A - A->period * WEIGHT-B
- A/B being matching hist entry from first/second file specified
(or perf.data/perf.data.old) respectively.
- period being the hist entry period value
- WEIGHT-A/WEIGHT-B being user suplied weights in the the '-c' option
behind ':' separator like '-c wdiff:1,2'.
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1349448287-18919-5-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
479 lines
12 KiB
C
479 lines
12 KiB
C
#include <math.h>
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#include "../util/hist.h"
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#include "../util/util.h"
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#include "../util/sort.h"
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/* hist period print (hpp) functions */
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static int hpp__header_overhead(struct perf_hpp *hpp)
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{
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return scnprintf(hpp->buf, hpp->size, "Overhead");
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}
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static int hpp__width_overhead(struct perf_hpp *hpp __maybe_unused)
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{
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return 8;
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}
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static int hpp__color_overhead(struct perf_hpp *hpp, struct hist_entry *he)
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{
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struct hists *hists = he->hists;
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double percent = 100.0 * he->stat.period / hists->stats.total_period;
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return percent_color_snprintf(hpp->buf, hpp->size, " %6.2f%%", percent);
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}
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static int hpp__entry_overhead(struct perf_hpp *hpp, struct hist_entry *he)
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{
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struct hists *hists = he->hists;
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double percent = 100.0 * he->stat.period / hists->stats.total_period;
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const char *fmt = symbol_conf.field_sep ? "%.2f" : " %6.2f%%";
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return scnprintf(hpp->buf, hpp->size, fmt, percent);
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}
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static int hpp__header_overhead_sys(struct perf_hpp *hpp)
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{
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const char *fmt = symbol_conf.field_sep ? "%s" : "%7s";
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return scnprintf(hpp->buf, hpp->size, fmt, "sys");
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}
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static int hpp__width_overhead_sys(struct perf_hpp *hpp __maybe_unused)
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{
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return 7;
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}
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static int hpp__color_overhead_sys(struct perf_hpp *hpp, struct hist_entry *he)
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{
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struct hists *hists = he->hists;
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double percent = 100.0 * he->stat.period_sys / hists->stats.total_period;
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return percent_color_snprintf(hpp->buf, hpp->size, "%6.2f%%", percent);
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}
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static int hpp__entry_overhead_sys(struct perf_hpp *hpp, struct hist_entry *he)
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{
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struct hists *hists = he->hists;
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double percent = 100.0 * he->stat.period_sys / hists->stats.total_period;
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const char *fmt = symbol_conf.field_sep ? "%.2f" : "%6.2f%%";
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return scnprintf(hpp->buf, hpp->size, fmt, percent);
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}
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static int hpp__header_overhead_us(struct perf_hpp *hpp)
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{
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const char *fmt = symbol_conf.field_sep ? "%s" : "%7s";
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return scnprintf(hpp->buf, hpp->size, fmt, "user");
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}
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static int hpp__width_overhead_us(struct perf_hpp *hpp __maybe_unused)
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{
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return 7;
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}
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static int hpp__color_overhead_us(struct perf_hpp *hpp, struct hist_entry *he)
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{
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struct hists *hists = he->hists;
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double percent = 100.0 * he->stat.period_us / hists->stats.total_period;
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return percent_color_snprintf(hpp->buf, hpp->size, "%6.2f%%", percent);
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}
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static int hpp__entry_overhead_us(struct perf_hpp *hpp, struct hist_entry *he)
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{
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struct hists *hists = he->hists;
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double percent = 100.0 * he->stat.period_us / hists->stats.total_period;
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const char *fmt = symbol_conf.field_sep ? "%.2f" : "%6.2f%%";
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return scnprintf(hpp->buf, hpp->size, fmt, percent);
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}
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static int hpp__header_overhead_guest_sys(struct perf_hpp *hpp)
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{
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return scnprintf(hpp->buf, hpp->size, "guest sys");
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}
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static int hpp__width_overhead_guest_sys(struct perf_hpp *hpp __maybe_unused)
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{
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return 9;
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}
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static int hpp__color_overhead_guest_sys(struct perf_hpp *hpp,
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struct hist_entry *he)
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{
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struct hists *hists = he->hists;
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double percent = 100.0 * he->stat.period_guest_sys / hists->stats.total_period;
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return percent_color_snprintf(hpp->buf, hpp->size, " %6.2f%% ", percent);
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}
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static int hpp__entry_overhead_guest_sys(struct perf_hpp *hpp,
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struct hist_entry *he)
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{
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struct hists *hists = he->hists;
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double percent = 100.0 * he->stat.period_guest_sys / hists->stats.total_period;
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const char *fmt = symbol_conf.field_sep ? "%.2f" : " %6.2f%% ";
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return scnprintf(hpp->buf, hpp->size, fmt, percent);
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}
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static int hpp__header_overhead_guest_us(struct perf_hpp *hpp)
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{
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return scnprintf(hpp->buf, hpp->size, "guest usr");
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}
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static int hpp__width_overhead_guest_us(struct perf_hpp *hpp __maybe_unused)
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{
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return 9;
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}
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static int hpp__color_overhead_guest_us(struct perf_hpp *hpp,
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struct hist_entry *he)
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{
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struct hists *hists = he->hists;
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double percent = 100.0 * he->stat.period_guest_us / hists->stats.total_period;
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return percent_color_snprintf(hpp->buf, hpp->size, " %6.2f%% ", percent);
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}
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static int hpp__entry_overhead_guest_us(struct perf_hpp *hpp,
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struct hist_entry *he)
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{
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struct hists *hists = he->hists;
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double percent = 100.0 * he->stat.period_guest_us / hists->stats.total_period;
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const char *fmt = symbol_conf.field_sep ? "%.2f" : " %6.2f%% ";
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return scnprintf(hpp->buf, hpp->size, fmt, percent);
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}
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static int hpp__header_baseline(struct perf_hpp *hpp)
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{
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return scnprintf(hpp->buf, hpp->size, "Baseline");
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}
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static int hpp__width_baseline(struct perf_hpp *hpp __maybe_unused)
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{
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return 8;
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}
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static double baseline_percent(struct hist_entry *he)
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{
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struct hist_entry *pair = he->pair;
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struct hists *pair_hists = pair ? pair->hists : NULL;
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double percent = 0.0;
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if (pair) {
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u64 total_period = pair_hists->stats.total_period;
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u64 base_period = pair->stat.period;
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percent = 100.0 * base_period / total_period;
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}
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return percent;
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}
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static int hpp__color_baseline(struct perf_hpp *hpp, struct hist_entry *he)
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{
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double percent = baseline_percent(he);
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return percent_color_snprintf(hpp->buf, hpp->size, " %6.2f%%", percent);
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}
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static int hpp__entry_baseline(struct perf_hpp *hpp, struct hist_entry *he)
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{
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double percent = baseline_percent(he);
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const char *fmt = symbol_conf.field_sep ? "%.2f" : " %6.2f%%";
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return scnprintf(hpp->buf, hpp->size, fmt, percent);
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}
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static int hpp__header_samples(struct perf_hpp *hpp)
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{
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const char *fmt = symbol_conf.field_sep ? "%s" : "%11s";
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return scnprintf(hpp->buf, hpp->size, fmt, "Samples");
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}
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static int hpp__width_samples(struct perf_hpp *hpp __maybe_unused)
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{
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return 11;
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}
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static int hpp__entry_samples(struct perf_hpp *hpp, struct hist_entry *he)
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{
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const char *fmt = symbol_conf.field_sep ? "%" PRIu64 : "%11" PRIu64;
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return scnprintf(hpp->buf, hpp->size, fmt, he->stat.nr_events);
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}
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static int hpp__header_period(struct perf_hpp *hpp)
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{
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const char *fmt = symbol_conf.field_sep ? "%s" : "%12s";
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return scnprintf(hpp->buf, hpp->size, fmt, "Period");
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}
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static int hpp__width_period(struct perf_hpp *hpp __maybe_unused)
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{
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return 12;
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}
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static int hpp__entry_period(struct perf_hpp *hpp, struct hist_entry *he)
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{
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const char *fmt = symbol_conf.field_sep ? "%" PRIu64 : "%12" PRIu64;
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return scnprintf(hpp->buf, hpp->size, fmt, he->stat.period);
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}
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static int hpp__header_delta(struct perf_hpp *hpp)
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{
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const char *fmt = symbol_conf.field_sep ? "%s" : "%7s";
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return scnprintf(hpp->buf, hpp->size, fmt, "Delta");
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}
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static int hpp__width_delta(struct perf_hpp *hpp __maybe_unused)
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{
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return 7;
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}
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static int hpp__entry_delta(struct perf_hpp *hpp, struct hist_entry *he)
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{
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const char *fmt = symbol_conf.field_sep ? "%s" : "%7.7s";
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char buf[32] = " ";
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double diff;
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if (he->diff.computed)
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diff = he->diff.period_ratio_delta;
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else
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diff = perf_diff__compute_delta(he);
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if (fabs(diff) >= 0.01)
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scnprintf(buf, sizeof(buf), "%+4.2F%%", diff);
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return scnprintf(hpp->buf, hpp->size, fmt, buf);
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}
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static int hpp__header_ratio(struct perf_hpp *hpp)
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{
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const char *fmt = symbol_conf.field_sep ? "%s" : "%14s";
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return scnprintf(hpp->buf, hpp->size, fmt, "Ratio");
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}
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static int hpp__width_ratio(struct perf_hpp *hpp __maybe_unused)
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{
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return 14;
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}
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static int hpp__entry_ratio(struct perf_hpp *hpp, struct hist_entry *he)
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{
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const char *fmt = symbol_conf.field_sep ? "%s" : "%14s";
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char buf[32] = " ";
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double ratio;
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if (he->diff.computed)
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ratio = he->diff.period_ratio;
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else
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ratio = perf_diff__compute_ratio(he);
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if (ratio > 0.0)
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scnprintf(buf, sizeof(buf), "%+14.6F", ratio);
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return scnprintf(hpp->buf, hpp->size, fmt, buf);
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}
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static int hpp__header_wdiff(struct perf_hpp *hpp)
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{
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const char *fmt = symbol_conf.field_sep ? "%s" : "%14s";
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return scnprintf(hpp->buf, hpp->size, fmt, "Weighted diff");
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}
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static int hpp__width_wdiff(struct perf_hpp *hpp __maybe_unused)
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{
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return 14;
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}
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static int hpp__entry_wdiff(struct perf_hpp *hpp, struct hist_entry *he)
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{
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const char *fmt = symbol_conf.field_sep ? "%s" : "%14s";
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char buf[32] = " ";
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s64 wdiff;
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if (he->diff.computed)
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wdiff = he->diff.wdiff;
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else
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wdiff = perf_diff__compute_wdiff(he);
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if (wdiff != 0)
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scnprintf(buf, sizeof(buf), "%14ld", wdiff);
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return scnprintf(hpp->buf, hpp->size, fmt, buf);
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}
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static int hpp__header_displ(struct perf_hpp *hpp)
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{
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return scnprintf(hpp->buf, hpp->size, "Displ.");
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}
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static int hpp__width_displ(struct perf_hpp *hpp __maybe_unused)
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{
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return 6;
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}
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static int hpp__entry_displ(struct perf_hpp *hpp,
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struct hist_entry *he)
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{
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struct hist_entry *pair = he->pair;
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long displacement = pair ? pair->position - he->position : 0;
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const char *fmt = symbol_conf.field_sep ? "%s" : "%6.6s";
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char buf[32] = " ";
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if (displacement)
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scnprintf(buf, sizeof(buf), "%+4ld", displacement);
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return scnprintf(hpp->buf, hpp->size, fmt, buf);
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}
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#define HPP__COLOR_PRINT_FNS(_name) \
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.header = hpp__header_ ## _name, \
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.width = hpp__width_ ## _name, \
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.color = hpp__color_ ## _name, \
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.entry = hpp__entry_ ## _name
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#define HPP__PRINT_FNS(_name) \
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.header = hpp__header_ ## _name, \
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.width = hpp__width_ ## _name, \
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.entry = hpp__entry_ ## _name
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struct perf_hpp_fmt perf_hpp__format[] = {
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{ .cond = false, HPP__COLOR_PRINT_FNS(baseline) },
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{ .cond = true, HPP__COLOR_PRINT_FNS(overhead) },
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{ .cond = false, HPP__COLOR_PRINT_FNS(overhead_sys) },
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{ .cond = false, HPP__COLOR_PRINT_FNS(overhead_us) },
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{ .cond = false, HPP__COLOR_PRINT_FNS(overhead_guest_sys) },
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{ .cond = false, HPP__COLOR_PRINT_FNS(overhead_guest_us) },
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{ .cond = false, HPP__PRINT_FNS(samples) },
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{ .cond = false, HPP__PRINT_FNS(period) },
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{ .cond = false, HPP__PRINT_FNS(delta) },
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{ .cond = false, HPP__PRINT_FNS(ratio) },
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{ .cond = false, HPP__PRINT_FNS(wdiff) },
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{ .cond = false, HPP__PRINT_FNS(displ) }
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};
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#undef HPP__COLOR_PRINT_FNS
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#undef HPP__PRINT_FNS
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void perf_hpp__init(void)
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{
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if (symbol_conf.show_cpu_utilization) {
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perf_hpp__format[PERF_HPP__OVERHEAD_SYS].cond = true;
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perf_hpp__format[PERF_HPP__OVERHEAD_US].cond = true;
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if (perf_guest) {
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perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_SYS].cond = true;
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perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_US].cond = true;
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}
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}
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if (symbol_conf.show_nr_samples)
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perf_hpp__format[PERF_HPP__SAMPLES].cond = true;
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if (symbol_conf.show_total_period)
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perf_hpp__format[PERF_HPP__PERIOD].cond = true;
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}
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void perf_hpp__column_enable(unsigned col, bool enable)
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{
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BUG_ON(col >= PERF_HPP__MAX_INDEX);
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perf_hpp__format[col].cond = enable;
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}
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static inline void advance_hpp(struct perf_hpp *hpp, int inc)
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{
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hpp->buf += inc;
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hpp->size -= inc;
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}
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int hist_entry__period_snprintf(struct perf_hpp *hpp, struct hist_entry *he,
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bool color)
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{
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const char *sep = symbol_conf.field_sep;
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char *start = hpp->buf;
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int i, ret;
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bool first = true;
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if (symbol_conf.exclude_other && !he->parent)
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return 0;
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for (i = 0; i < PERF_HPP__MAX_INDEX; i++) {
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if (!perf_hpp__format[i].cond)
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continue;
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if (!sep || !first) {
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ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: " ");
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advance_hpp(hpp, ret);
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first = false;
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}
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if (color && perf_hpp__format[i].color)
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ret = perf_hpp__format[i].color(hpp, he);
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else
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ret = perf_hpp__format[i].entry(hpp, he);
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advance_hpp(hpp, ret);
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}
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return hpp->buf - start;
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}
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int hist_entry__sort_snprintf(struct hist_entry *he, char *s, size_t size,
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struct hists *hists)
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{
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const char *sep = symbol_conf.field_sep;
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struct sort_entry *se;
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int ret = 0;
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list_for_each_entry(se, &hist_entry__sort_list, list) {
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if (se->elide)
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continue;
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ret += scnprintf(s + ret, size - ret, "%s", sep ?: " ");
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ret += se->se_snprintf(he, s + ret, size - ret,
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hists__col_len(hists, se->se_width_idx));
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}
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return ret;
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}
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/*
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* See hists__fprintf to match the column widths
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*/
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unsigned int hists__sort_list_width(struct hists *hists)
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{
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struct sort_entry *se;
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int i, ret = 0;
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for (i = 0; i < PERF_HPP__MAX_INDEX; i++) {
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if (!perf_hpp__format[i].cond)
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continue;
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if (i)
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ret += 2;
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ret += perf_hpp__format[i].width(NULL);
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}
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list_for_each_entry(se, &hist_entry__sort_list, list)
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if (!se->elide)
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ret += 2 + hists__col_len(hists, se->se_width_idx);
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if (verbose) /* Addr + origin */
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ret += 3 + BITS_PER_LONG / 4;
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return ret;
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}
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