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perf tools: Allow specifying proc-map-timeout in config file

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The default timeout of 500ms for parsing /proc/<pid>/maps files is too
short for profiling many of our services.

This can be overridden by passing --proc-map-timeout to the relevant
command but it'd be nice to globally increase our default value.

This patch permits setting a different default with the
core.proc-map-timeout config file parameter.

Signed-off-by: Mark Drayton <mbd@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20181204203420.1683114-1-mbd@fb.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Mark Drayton
2018-12-04 12:34:20 -08:00
committed by Arnaldo Carvalho de Melo
parent 65c9fee2da
commit 3fcb10e496
14 changed files with 39 additions and 50 deletions
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4
tools/perf/util/config.c
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@@ -14,6 +14,7 @@
#include "util.h"
#include "cache.h"
#include <subcmd/exec-cmd.h>
#include "util/event.h" /* proc_map_timeout */
#include "util/hist.h" /* perf_hist_config */
#include "util/llvm-utils.h" /* perf_llvm_config */
#include "config.h"
@@ -419,6 +420,9 @@ static int perf_buildid_config(const char *var, const char *value)
static int perf_default_core_config(const char *var __maybe_unused,
const char *value __maybe_unused)
{
if (!strcmp(var, "core.proc-map-timeout"))
proc_map_timeout = strtoul(value, NULL, 10);
/* Add other config variables here. */
return 0;
}