From: Jan Kara <jack@suse.cz>
Date: Wed, 13 Jan 2021 11:26:43 +0000 (+0100)
Subject: blkparse: Print time when trace was started
X-Git-Tag: blktrace-1.3.0~1
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=dc24c67dfbbd11a3221034557548061e7d2c602f;p=blktrace.git

blkparse: Print time when trace was started

For correlating blktrace data with other information, it is useful to
know when the trace has been captured. Since the absolute timestamp
is contained in the blktrace file, just output it.

Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Link: https://lore.kernel.org/r/20210113112643.12893-1-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/blkparse.c b/blkparse.c
index 33dd023..1d7ae95 100644
--- a/blkparse.c
+++ b/blkparse.c
@@ -32,6 +32,7 @@
 #include <signal.h>
 #include <locale.h>
 #include <libgen.h>
+#include <time.h>
 
 #include "blktrace.h"
 #include "rbtree.h"
@@ -2888,6 +2889,7 @@ static void show_stats(void)
 
 	if (per_device_and_cpu_stats)
 		show_device_and_cpu_stats();
+	fprintf(ofp, "Trace started at %s\n", ctime(&abs_start_time.tv_sec));
 
 	fflush(ofp);
 }