X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Ftools%2Fperf%2FDocumentation%2Fperf-kvm.txt;h=6a5bb2b170391da59b572f8c4230209fb04199e2;hb=e09b41010ba33a20a87472ee821fa407a5b8da36;hp=6252e776009c022dda55970dad2aa72e13610cf4;hpb=f93b97fd65072de626c074dbe099a1fff05ce060;p=kvmfornfv.git

diff --git a/kernel/tools/perf/Documentation/perf-kvm.txt b/kernel/tools/perf/Documentation/perf-kvm.txt
index 6252e7760..6a5bb2b17 100644
--- a/kernel/tools/perf/Documentation/perf-kvm.txt
+++ b/kernel/tools/perf/Documentation/perf-kvm.txt
@@ -151,6 +151,12 @@ STAT LIVE OPTIONS
        Show events other than HLT (x86 only) or Wait state (s390 only)
        that take longer than duration usecs.
 
+--proc-map-timeout::
+	When processing pre-existing threads /proc/XXX/mmap, it may take
+	a long time, because the file may be huge. A time out is needed
+	in such cases.
+	This option sets the time out limit. The default value is 500 ms.
+
 SEE ALSO
 --------
 linkperf:perf-top[1], linkperf:perf-record[1], linkperf:perf-report[1],