redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

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: 1e181b92a2 ("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>
alistair/sunxi64-5.4-dsi
Ravi Bangoria 2019-08-22 14:20:45 +05:30 committed by Arnaldo Carvalho de Melo
parent a2f354e3ab
commit 1ea770f6c1
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/perf/builtin-c2c.c
View File

@ -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)