commit 16de1bf91ca80e62ce257a24cae471fab140bbe0
author Bruce Cran <bruce@cran.org.uk> Mon Feb 20 17:07:32 2012 +0000
committer Jens Axboe <axboe@kernel.dk> Mon Feb 20 19:33:30 2012 +0100
tree c494dd6ddb27d8e6e6341aac1523168746b7bae1
parent b9fd788f0e8adacc33316107594e9eb0463743d7

Add FIO_PREFERRED_CLOCK_SOURCE to allow selection of clock source on a per-platform basis.

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

gettime.c

diff --git a/gettime.c b/gettime.c
index cf0d664..e8f5ab5 100644
--- a/gettime.c
+++ b/gettime.c
@@ -24,7 +24,7 @@
 int fio_gtod_cpu = -1;
 static pthread_t gtod_thread;
 
-enum fio_cs fio_clock_source = CS_GTOD;
+enum fio_cs fio_clock_source = FIO_PREFERRED_CLOCK_SOURCE;
 
 #ifdef FIO_DEBUG_TIME
 

os/os.h

diff --git a/os/os.h b/os/os.h
index cbb476f..c10cb12 100644
--- a/os/os.h
+++ b/os/os.h
@@ -129,6 +129,10 @@
 #define FIO_OS_PATH_SEPARATOR	"/"
 #endif
 
+#ifndef FIO_PREFERRED_CLOCK_SOURCE
+#define FIO_PREFERRED_CLOCK_SOURCE	CS_CGETTIME
+#endif
+
 #ifndef FIO_MAX_JOBS
 #define FIO_MAX_JOBS		2048
 #endif