From 9af303e22a317d1cc6f440e08f72428830708b37 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Sat, 1 Dec 2012 21:15:40 +0100 Subject: perf diff: Switching the base hists to be pairs head Making the baseline hists to act as a pairs head. So far we don't care which hists act as a pairs head, because we have only 2 files to deal with and any of them is suitable to do the job. But if we want to process more files, we need to pick up one hists to act as pairs head, and the baseline hists is the most suitable. Signed-off-by: Jiri Olsa Reviewed-by: Namhyung Kim Cc: Corey Ashford Cc: Frederic Weisbecker Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/n/tip-cklmt2o4j87i9viz900245ae@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-diff.c | 60 +++++++++++++++++++++++------------------------ 1 file changed, 30 insertions(+), 30 deletions(-) (limited to 'tools/perf/builtin-diff.c') diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c index 015ca2d4fe90..0cfe99ea9056 100644 --- a/tools/perf/builtin-diff.c +++ b/tools/perf/builtin-diff.c @@ -167,34 +167,34 @@ double perf_diff__period_percent(struct hist_entry *he, u64 period) double perf_diff__compute_delta(struct hist_entry *he, struct hist_entry *pair) { - double new_percent = perf_diff__period_percent(he, he->stat.period); - double old_percent = perf_diff__period_percent(pair, pair->stat.period); + double old_percent = perf_diff__period_percent(he, he->stat.period); + double new_percent = perf_diff__period_percent(pair, pair->stat.period); - he->diff.period_ratio_delta = new_percent - old_percent; - he->diff.computed = true; - return he->diff.period_ratio_delta; + pair->diff.period_ratio_delta = new_percent - old_percent; + pair->diff.computed = true; + return pair->diff.period_ratio_delta; } double perf_diff__compute_ratio(struct hist_entry *he, struct hist_entry *pair) { - double new_period = he->stat.period; - double old_period = pair->stat.period; + double old_period = he->stat.period ?: 1; + double new_period = pair->stat.period; - he->diff.computed = true; - he->diff.period_ratio = new_period / old_period; - return he->diff.period_ratio; + pair->diff.computed = true; + pair->diff.period_ratio = new_period / old_period; + return pair->diff.period_ratio; } s64 perf_diff__compute_wdiff(struct hist_entry *he, struct hist_entry *pair) { - u64 new_period = he->stat.period; - u64 old_period = pair->stat.period; + u64 old_period = he->stat.period; + u64 new_period = pair->stat.period; - he->diff.computed = true; - he->diff.wdiff = new_period * compute_wdiff_w2 - - old_period * compute_wdiff_w1; + pair->diff.computed = true; + pair->diff.wdiff = new_period * compute_wdiff_w2 - + old_period * compute_wdiff_w1; - return he->diff.wdiff; + return pair->diff.wdiff; } static int formula_delta(struct hist_entry *he, struct hist_entry *pair, @@ -203,15 +203,15 @@ static int formula_delta(struct hist_entry *he, struct hist_entry *pair, return scnprintf(buf, size, "(%" PRIu64 " * 100 / %" PRIu64 ") - " "(%" PRIu64 " * 100 / %" PRIu64 ")", - he->stat.period, he->hists->stats.total_period, - pair->stat.period, pair->hists->stats.total_period); + pair->stat.period, pair->hists->stats.total_period, + he->stat.period, he->hists->stats.total_period); } static int formula_ratio(struct hist_entry *he, struct hist_entry *pair, char *buf, size_t size) { - double new_period = he->stat.period; - double old_period = pair->stat.period; + double old_period = he->stat.period; + double new_period = pair->stat.period; return scnprintf(buf, size, "%.0F / %.0F", new_period, old_period); } @@ -219,8 +219,8 @@ static int formula_ratio(struct hist_entry *he, struct hist_entry *pair, static int formula_wdiff(struct hist_entry *he, struct hist_entry *pair, char *buf, size_t size) { - u64 new_period = he->stat.period; - u64 old_period = pair->stat.period; + u64 old_period = he->stat.period; + u64 new_period = pair->stat.period; return scnprintf(buf, size, "(%" PRIu64 " * " "%" PRId64 ") - (%" PRIu64 " * " "%" PRId64 ")", @@ -462,23 +462,23 @@ static void hists__compute_resort(struct hists *hists) } } -static void hists__process(struct hists *old, struct hists *new) +static void hists__process(struct hists *base, struct hists *new) { - hists__match(new, old); + hists__match(base, new); if (show_baseline_only) - hists__baseline_only(new); + hists__baseline_only(base); else - hists__link(new, old); + hists__link(base, new); if (sort_compute) { - hists__precompute(new); - hists__compute_resort(new); + hists__precompute(base); + hists__compute_resort(base); } else { - hists__output_resort(new); + hists__output_resort(base); } - hists__fprintf(new, true, 0, 0, 0, stdout); + hists__fprintf(base, true, 0, 0, 0, stdout); } static void data_process(void) -- cgit v1.2.3