perf report --start time1 --end time2
The unit of time1 & time2 are millsecond.
Cc: David Ahern <dsah...@gmail.com>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Ingo Molnar <mi...@redhat.com>
Cc: Arnaldo Carvalho de Melo <a...@ghostprotocols.net>
Cc: Arjan van de Ven <ar...@linux.intel.com>
Cc: Namhyung Kim <namhy...@gmail.com>
Cc: Yanmin Zhang <yanmin.zh...@intel.com>
Cc: Wu Fengguang <fengguang...@intel.com>
Cc: Mike Galbraith <efa...@gmx.de>
Cc: Andrew Morton <a...@linux-foundation.org>
Signed-off-by: Chenggang Qin <chenggang....@taobao.com>
---
tools/perf/builtin-report.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 72eae74..e9e9d0a 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -733,6 +733,7 @@ int cmd_report(int argc, const char **argv, const char
*prefix __maybe_unused)
{
struct perf_session *session;
struct stat st;
+ u64 tstart = 0, tend = 0;
bool has_br_stack = false;
int branch_mode = -1;
int ret = -1;
@@ -843,6 +844,8 @@ int cmd_report(int argc, const char **argv, const char
*prefix __maybe_unused)
OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
OPT_CALLBACK(0, "percent-limit", &report, "percent",
"Don't show entries under that percent",
parse_percent_limit),
+ OPT_U64(0, "start", &tstart, "Start time of analysis interval. (Unit:
ms)"),
+ OPT_U64(0, "end", &tend, "End time of analysis interval. (Unit: ms)"),
OPT_END()
};
@@ -850,6 +853,12 @@ int cmd_report(int argc, const char **argv, const char
*prefix __maybe_unused)
argc = parse_options(argc, argv, options, report_usage, 0);
+ if (tend && tstart >= tend) {
+ fprintf(stderr, "start [%" PRIu64 "] is greater than end [%"
+ PRIu64 "].\n", tstart, tend);
+ return -1;
+ }
+
if (report.use_stdio)
use_browser = 0;
else if (report.use_tui)
--
1.7.8.rc2.5.g815b
--
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