Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 24/25] perf c2c: Fix report with offline cpus | Date | Thu, 22 Aug 2019 18:00:59 -0300 |
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From: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
If c2c is recorded on a machine where any cpus are offline, 'perf c2c report' throws an error "node/cpu topology bugFailed setup nodes".
It fails because while preparing node-cpu mapping we don't consider offline cpus.
Reported-by: Nageswara R Sastry <nasastry@in.ibm.com> Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Fixes: 1e181b92a2da ("perf c2c report: Add 'node' sort key") Link: http://lkml.kernel.org/r/20190822085045.25108-1-ravi.bangoria@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/builtin-c2c.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index 01629f5b6d1f..211143720078 100644 --- a/tools/perf/builtin-c2c.c +++ b/tools/perf/builtin-c2c.c @@ -2027,7 +2027,7 @@ static int setup_nodes(struct perf_session *session) c2c.node_info = 2; c2c.nodes_cnt = session->header.env.nr_numa_nodes; - c2c.cpus_cnt = session->header.env.nr_cpus_online; + c2c.cpus_cnt = session->header.env.nr_cpus_avail; n = session->header.env.numa_nodes; if (!n) -- 2.21.0
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