From: Jiri Olsa <jolsa@kernel.org> To: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: lkml <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@kernel.org>, Namhyung Kim <namhyung@kernel.org>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Peter Zijlstra <a.p.zijlstra@chello.nl>, Jonas Rabenstein <jonas.rabenstein@studium.uni-erlangen.de>, Nageswara R Sastry <nasastry@in.ibm.com>, Ravi Bangoria <ravi.bangoria@linux.ibm.com>, Andi Kleen <ak@linux.intel.com> Subject: [PATCH 1/8] perf c2c: Fix c2c report for empty numa node Date: Tue, 5 Mar 2019 16:25:29 +0100 Message-ID: <20190305152536.21035-2-jolsa@kernel.org> (raw) In-Reply-To: <20190305152536.21035-1-jolsa@kernel.org> From: Jiri Olsa <jolsa@redhat.com> Ravi Bangoria reported that we fail with empty numa node with following message: $ lscpu NUMA node0 CPU(s): NUMA node1 CPU(s): 0-4 $ sudo ./perf c2c report node/cpu topology bugFailed setup nodes Fixing this by detecting empty node and keeping its cpu set empty. Reported-by: Nageswara R Sastry <nasastry@in.ibm.com> Tested-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Link: http://lkml.kernel.org/n/tip-dyq5jo6pn1j3yqavb5ukjwwu@git.kernel.org Signed-off-by: Jiri Olsa <jolsa@kernel.org> --- tools/perf/builtin-c2c.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index 4272763a5e96..9e6cc868bdb4 100644 --- a/tools/perf/builtin-c2c.c +++ b/tools/perf/builtin-c2c.c @@ -2056,6 +2056,12 @@ static int setup_nodes(struct perf_session *session) if (!set) return -ENOMEM; + nodes[node] = set; + + /* empty node, skip */ + if (cpu_map__empty(map)) + continue; + for (cpu = 0; cpu < map->nr; cpu++) { set_bit(map->map[cpu], set); @@ -2064,8 +2070,6 @@ static int setup_nodes(struct perf_session *session) cpu2node[map->map[cpu]] = node; } - - nodes[node] = set; } setup_nodes_header(); -- 2.17.2
next prev parent reply index Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-03-05 15:25 [PATCH 0/8] perf tools: Assorted fixes Jiri Olsa 2019-03-05 15:25 ` Jiri Olsa [this message] 2019-03-09 20:05 ` [tip:perf/urgent] perf c2c: Fix c2c report for empty numa node tip-bot for Jiri Olsa 2019-03-05 15:25 ` [PATCH 2/8] perf tools: Add error path into hist_entry__init Jiri Olsa 2019-03-09 20:06 ` [tip:perf/urgent] perf hist: " tip-bot for Jiri Olsa 2019-03-05 15:25 ` [PATCH 3/8] perf hist: Fix memory leak of srcline Jiri Olsa 2019-03-09 20:07 ` [tip:perf/urgent] " tip-bot for Jiri Olsa 2019-03-05 15:25 ` [PATCH 4/8] perf tools: Read and store caps/max_precise in perf_pmu Jiri Olsa 2019-03-09 20:07 ` [tip:perf/urgent] " tip-bot for Jiri Olsa 2019-03-05 15:25 ` [PATCH 5/8] perf tools: Get precise_ip from the pmu config Jiri Olsa 2019-03-05 16:13 ` Andi Kleen 2019-03-05 16:28 ` Jiri Olsa 2019-03-05 16:40 ` Andi Kleen 2019-03-07 15:35 ` [PATCHv2 " Jiri Olsa 2019-03-07 16:51 ` Andi Kleen 2019-03-07 22:32 ` Jiri Olsa 2019-03-14 14:01 ` Jiri Olsa 2019-03-14 15:49 ` Andi Kleen 2019-03-15 12:15 ` [PATCH] perf tools: Move precise_ip detection into perf_evsel__open Jiri Olsa 2019-03-15 14:05 ` Andi Kleen 2019-03-15 14:35 ` Arnaldo Carvalho de Melo 2019-03-15 14:52 ` Jiri Olsa 2019-03-23 15:04 ` Jiri Olsa 2019-03-25 14:53 ` Arnaldo Carvalho de Melo 2019-03-05 15:25 ` [PATCH 6/8] perf tools: Probe for precise_ip with simple attr Jiri Olsa 2019-03-09 20:08 ` [tip:perf/urgent] perf evsel: " tip-bot for Jiri Olsa 2019-03-05 15:25 ` [PATCH 7/8] perf tools: Fix double free in perf_data__close Jiri Olsa 2019-03-09 20:09 ` [tip:perf/urgent] perf session: " tip-bot for Jiri Olsa 2019-03-05 15:25 ` [PATCH 8/8] perf tools: Force perf_data__open|close zero data->file.path Jiri Olsa 2019-03-09 20:09 ` [tip:perf/urgent] perf data: " tip-bot for Jiri Olsa
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