From: Jens Axboe <axboe@kernel.dk>
Date: Mon, 10 Dec 2012 07:29:03 +0000 (+0100)
Subject: gettime: calibration rounding error
X-Git-Tag: fio-2.0.12~16
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=c011000deaf5131861a2bd1fb2ac72582418e891;hp=486332e567826eb284bfd9064440867f31fccd7f

gettime: calibration rounding error

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/gettime.c b/gettime.c
index 549c35e9..a60b35f6 100644
--- a/gettime.c
+++ b/gettime.c
@@ -207,7 +207,7 @@ static unsigned long get_cycles_per_usec(void)
 		}
 	} while (1);
 
-	return (c_e - c_s) >> 7;
+	return (c_e - c_s + 127) >> 7;
 }
 
 #define NR_TIME_ITERS	50