Commit 1ea770f6 authored Aug 22, 2019 by Ravi Bangoria Committed by Arnaldo Carvalho de Melo Aug 22, 2019

perf c2c: Fix report with offline cpus



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: 1e181b92 ("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>

parent a2f354e3

tools/perf/builtin-c2c.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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)

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