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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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perf diff: Fix output ordering to honor next column
When perf diff prints output, it sorts the entries using baseline field
by default, but entries which don't have baseline are not sorted
properly. This patch makes it sorted by values of next column.
Before:
# Baseline/0 Delta/1 Delta/2 Shared Object Symbol
# .......... ....... ....... ................. ..........................................
#
32.75% +0.28% -0.83% libc-2.20.so [.] malloc
31.50% -0.74% -0.23% libc-2.20.so [.] _int_free
22.98% +0.51% +0.52% libc-2.20.so [.] _int_malloc
5.70% +0.28% +0.30% libc-2.20.so [.] free
4.38% -0.21% +0.25% a.out [.] main
1.32% -0.15% +0.05% a.out [.] free@plt
1.31% +0.03% -0.06% a.out [.] malloc@plt
0.01% -0.01% -0.01% [kernel.kallsyms] [k] native_write_msr_safe
0.01% [kernel.kallsyms] [k] scheduler_tick
0.01% -0.00% [kernel.kallsyms] [k] native_read_msr_safe
+0.01% [kernel.kallsyms] [k] _raw_spin_lock_irqsave
+0.01% +0.01% [kernel.kallsyms] [k] apic_timer_interrupt
+0.01% [kernel.kallsyms] [k] intel_pstate_timer_func
+0.01% [kernel.kallsyms] [k] perf_adjust_freq_unthr_context.part.82
+0.01% [kernel.kallsyms] [k] read_tsc
+0.01% [kernel.kallsyms] [k] timekeeping_update.constprop.8
After:
# Baseline/0 Delta/1 Delta/2 Shared Object Symbol
# .......... ....... ....... ................. ..........................................
#
32.75% +0.28% -0.83% libc-2.20.so [.] malloc
31.50% -0.74% -0.23% libc-2.20.so [.] _int_free
22.98% +0.51% +0.52% libc-2.20.so [.] _int_malloc
5.70% +0.28% +0.30% libc-2.20.so [.] free
4.38% -0.21% +0.25% a.out [.] main
1.32% -0.15% +0.05% a.out [.] free@plt
1.31% +0.03% -0.06% a.out [.] malloc@plt
0.01% -0.01% -0.01% [kernel.kallsyms] [k] native_write_msr_safe
0.01% [kernel.kallsyms] [k] scheduler_tick
0.01% -0.00% [kernel.kallsyms] [k] native_read_msr_safe
+0.01% +0.01% [kernel.kallsyms] [k] apic_timer_interrupt
+0.01% [kernel.kallsyms] [k] read_tsc
+0.01% [kernel.kallsyms] [k] perf_adjust_freq_unthr_context.part.82
+0.01% [kernel.kallsyms] [k] intel_pstate_timer_func
+0.01% [kernel.kallsyms] [k] _raw_spin_lock_irqsave
+0.01% [kernel.kallsyms] [k] timekeeping_update.constprop.8
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1420677949-6719-7-git-send-email-namhyung@kernel.org
[ Fixed up hist_entry__cmp_ method signatures, fallout from making previous cset buildable ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim
Arnaldo Carvalho de Melo
parent
87bbdf768f
commit
56495a8aff
@ -456,26 +456,30 @@ static void hists__precompute(struct hists *hists)
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next = rb_first(root);
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while (next != NULL) {
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struct hist_entry *he, *pair;
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struct data__file *d;
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int i;
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he = rb_entry(next, struct hist_entry, rb_node_in);
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next = rb_next(&he->rb_node_in);
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pair = get_pair_data(he, &data__files[sort_compute]);
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if (!pair)
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continue;
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data__for_each_file_new(i, d) {
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pair = get_pair_data(he, d);
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if (!pair)
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continue;
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switch (compute) {
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case COMPUTE_DELTA:
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compute_delta(he, pair);
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break;
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case COMPUTE_RATIO:
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compute_ratio(he, pair);
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break;
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case COMPUTE_WEIGHTED_DIFF:
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compute_wdiff(he, pair);
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break;
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default:
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BUG_ON(1);
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switch (compute) {
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case COMPUTE_DELTA:
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compute_delta(he, pair);
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break;
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case COMPUTE_RATIO:
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compute_ratio(he, pair);
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break;
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case COMPUTE_WEIGHTED_DIFF:
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compute_wdiff(he, pair);
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break;
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default:
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BUG_ON(1);
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}
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}
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}
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}
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@ -525,7 +529,7 @@ __hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right,
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static int64_t
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hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right,
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int c)
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int c, int sort_idx)
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{
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bool pairs_left = hist_entry__has_pairs(left);
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bool pairs_right = hist_entry__has_pairs(right);
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@ -537,8 +541,8 @@ hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right,
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if (!pairs_left || !pairs_right)
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return pairs_left ? -1 : 1;
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p_left = get_pair_data(left, &data__files[sort_compute]);
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p_right = get_pair_data(right, &data__files[sort_compute]);
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p_left = get_pair_data(left, &data__files[sort_idx]);
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p_right = get_pair_data(right, &data__files[sort_idx]);
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if (!p_left && !p_right)
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return 0;
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@ -565,33 +569,36 @@ static int64_t
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hist_entry__cmp_baseline(struct perf_hpp_fmt *fmt __maybe_unused,
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struct hist_entry *left, struct hist_entry *right)
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{
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if (sort_compute)
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return 0;
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if (left->stat.period == right->stat.period)
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return 0;
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return left->stat.period > right->stat.period ? 1 : -1;
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}
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static int64_t
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hist_entry__cmp_delta(struct perf_hpp_fmt *fmt __maybe_unused,
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hist_entry__cmp_delta(struct perf_hpp_fmt *fmt,
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struct hist_entry *left, struct hist_entry *right)
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{
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return hist_entry__cmp_compute(right, left, COMPUTE_DELTA);
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struct data__file *d = fmt_to_data_file(fmt);
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return hist_entry__cmp_compute(right, left, COMPUTE_DELTA, d->idx);
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}
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static int64_t
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hist_entry__cmp_ratio(struct perf_hpp_fmt *fmt __maybe_unused,
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hist_entry__cmp_ratio(struct perf_hpp_fmt *fmt,
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struct hist_entry *left, struct hist_entry *right)
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{
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return hist_entry__cmp_compute(right, left, COMPUTE_RATIO);
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struct data__file *d = fmt_to_data_file(fmt);
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return hist_entry__cmp_compute(right, left, COMPUTE_RATIO, d->idx);
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}
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static int64_t
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hist_entry__cmp_wdiff(struct perf_hpp_fmt *fmt __maybe_unused,
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hist_entry__cmp_wdiff(struct perf_hpp_fmt *fmt,
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struct hist_entry *left, struct hist_entry *right)
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{
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return hist_entry__cmp_compute(right, left, COMPUTE_WEIGHTED_DIFF);
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struct data__file *d = fmt_to_data_file(fmt);
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return hist_entry__cmp_compute(right, left, COMPUTE_WEIGHTED_DIFF, d->idx);
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}
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static void hists__process(struct hists *hists)
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@ -599,9 +606,7 @@ static void hists__process(struct hists *hists)
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if (show_baseline_only)
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hists__baseline_only(hists);
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if (sort_compute)
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hists__precompute(hists);
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hists__precompute(hists);
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hists__output_resort(hists, NULL);
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hists__fprintf(hists, true, 0, 0, 0, stdout);
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