perf tools: Configurable per thread proc map processing time out
The time out to limit the individual proc map processing was hard code
to 500ms. This patch introduce a new option --proc-map-timeout to make
the time limit configurable.
Signed-off-by: Kan Liang <kan.liang@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ying Huang <ying.huang@intel.com>
Link: http://lkml.kernel.org/r/1434549071-25611-2-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index 9e5b07eb..776aec4 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -201,6 +201,12 @@
Force each column width to the provided list, for large terminal
readability. 0 means no limit (default behavior).
+--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.
+
INTERACTIVE PROMPTING KEYS
--------------------------