File perf-c2c-fix-report-with-offline-cpus.patch of Package perf.12679

Overview Repositories Revisions Requests Users Attributes Meta

File perf-c2c-fix-report-with-offline-cpus.patch of Package perf.12679

From: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Date: Thu Aug 22 14:20:45 2019 +0530
Subject: perf c2c: Fix report with offline cpus
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git
Git-commit: 1ea770f6c1971bc101b3741f4d88b0b4ea5c4181
References: bsc#1147003	
Signed-off-by: Tony Jones <tonyj@suse.de>

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: 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>

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)

Places

File perf-c2c-fix-report-with-offline-cpus.patch of Package perf.12679

Places