From: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
To: acme@kernel.org
Cc: alexander.shishkin@linux.intel.com, jolsa@redhat.com,
namhyung@kernel.org, eranian@google.com,
linux-kernel@vger.kernel.org, tonyj@suse.com,
nasastry@in.ibm.com, Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Subject: [PATCH] perf c2c: Fix c2c report for empty numa node
Date: Thu, 28 Feb 2019 21:07:19 +0530 [thread overview]
Message-ID: <20190228153719.23411-1-ravi.bangoria@linux.ibm.com> (raw)
perf c2c report fails if system has empty numa node(0 cpus):
$ lscpu
NUMA node0 CPU(s):
NUMA node1 CPU(s): 0-4
$ sudo ./perf c2c report
node/cpu topology bugFailed setup nodes
Fix this.
Reported-by: Nageswara R Sastry <nasastry@in.ibm.com>
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
---
tools/perf/util/cpumap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index 383674f448fc..517c3f37c613 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -261,7 +261,7 @@ struct cpu_map *cpu_map__dummy_new(void)
struct cpu_map *cpus = malloc(sizeof(*cpus) + sizeof(int));
if (cpus != NULL) {
- cpus->nr = 1;
+ cpus->nr = 0;
cpus->map[0] = -1;
refcount_set(&cpus->refcnt, 1);
}
--
2.17.1
next reply other threads:[~2019-02-28 15:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-28 15:37 Ravi Bangoria [this message]
2019-02-28 16:12 ` Jiri Olsa
2019-02-28 16:22 ` Jiri Olsa
2019-03-01 7:05 ` Ravi Bangoria
2019-03-01 10:26 ` Jiri Olsa
2019-03-02 3:07 ` Ravi Bangoria
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