linux-kernel - [PATCH 6/7] perf stat: Don't compare runtime stat for shadow stats

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Message-Id: <20220930202110.845199-7-namhyung@kernel.org>
Date:   Fri, 30 Sep 2022 13:21:09 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-perf-users@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Leo Yan <leo.yan@...aro.org>,
        Zhengjun Xing <zhengjun.xing@...ux.intel.com>,
        James Clark <james.clark@....com>
Subject: [PATCH 6/7] perf stat: Don't compare runtime stat for shadow stats

Now it always uses the global rt_stat.  Let's get rid of the field from
the saved_value.  When the both evsels are NULL, it'd return 0 so remove
the block in the saved_value_cmp.

Reviewed-by: James Clark <james.clark@....com>
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/util/stat-shadow.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 0676ee9986ff..f08291e55f1b 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -35,7 +35,6 @@ struct saved_value {
 	int ctx;
 	int map_idx;  /* cpu or thread map index */
 	struct cgroup *cgrp;
-	struct runtime_stat *stat;
 	struct stats stats;
 	u64 metric_total;
 	int metric_other;
@@ -67,16 +66,6 @@ static int saved_value_cmp(struct rb_node *rb_node, const void *entry)
 	if (a->cgrp != b->cgrp)
 		return (char *)a->cgrp < (char *)b->cgrp ? -1 : +1;
 
-	if (a->evsel == NULL && b->evsel == NULL) {
-		if (a->stat == b->stat)
-			return 0;
-
-		if ((char *)a->stat < (char *)b->stat)
-			return -1;
-
-		return 1;
-	}
-
 	if (a->evsel == b->evsel)
 		return 0;
 	if ((char *)a->evsel < (char *)b->evsel)
@@ -120,7 +109,6 @@ static struct saved_value *saved_value_lookup(struct evsel *evsel,
 		.evsel = evsel,
 		.type = type,
 		.ctx = ctx,
-		.stat = st,
 		.cgrp = cgrp,
 	};
 
-- 
2.38.0.rc1.362.ged0d419d3c-goog