From: Jens Axboe <jens.axboe@oracle.com>
Date: Fri, 1 Dec 2006 09:52:20 +0000 (+0100)
Subject: [PATCH] BTT patch: Fix problem with short runs
X-Git-Tag: blktrace-0.99.2~1
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=e977fa915b278585aa63914bac03d79b955e8c1e;p=blktrace.git

[PATCH] BTT patch: Fix problem with short runs

Found a problem that if BTT took less than 1 second to execute, we'd get
Ktps of <nan> - this fixes that...

Signed-off-by: Alan D. Brunelle <Alan.Brunelle@hp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

diff --git a/btt/bt_timeline.c b/btt/bt_timeline.c
index fa56780..e6522c9 100644
--- a/btt/bt_timeline.c
+++ b/btt/bt_timeline.c
@@ -94,7 +94,8 @@ int process(void)
 	latency_clean();
 
 	if (verbose) {
-		double tps = (double)n_traces / (double)(time(NULL) - genesis);
+		double tps = (double)n_traces / 
+					(double)((time(NULL) + 1) - genesis);
 		printf("%10lu traces @ %.1lf Ktps\n", n_traces, tps/1000.0);
 	}