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authorKan Liang <kan.liang@intel.com>2015-06-17 09:51:11 -0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-06-19 18:27:13 -0300
commit9d9cad763ca79dd3697e9f2d1df648e37496582b (patch)
treef59dd3c9d866c2fa8aa85b90c1eac83bf4f515a9 /tools/perf/builtin-top.c
parent930e6fcd2bcce9bcd9d4aa7e755678d33f3fe6f4 (diff)
downloadlinux-9d9cad763ca79dd3697e9f2d1df648e37496582b.tar.gz
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>
Diffstat (limited to 'tools/perf/builtin-top.c')
-rw-r--r--tools/perf/builtin-top.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 70a9505aae83..619a8696fda7 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -977,7 +977,7 @@ static int __cmd_top(struct perf_top *top)
goto out_delete;
machine__synthesize_threads(&top->session->machines.host, &opts->target,
- top->evlist->threads, false);
+ top->evlist->threads, false, opts->proc_map_timeout);
ret = perf_top__start_counters(top);
if (ret)
goto out_delete;
@@ -1087,6 +1087,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
.target = {
.uses_mmap = true,
},
+ .proc_map_timeout = 500,
},
.max_stack = PERF_MAX_STACK_DEPTH,
.sym_pcnt_filter = 5,
@@ -1186,6 +1187,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
"width[,width...]",
"don't try to adjust column width, use these fixed values"),
+ OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout,
+ "per thread proc mmap processing timeout in ms"),
OPT_END()
};
const char * const top_usage[] = {