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Cpu clock does not wrap if there is no CPU clock
[fio.git]
/
time.c
diff --git
a/time.c
b/time.c
index b145dc5b639a3d2bea37b6cae4c528cfdc17cf97..f1833c7b9ea42d368c06eda180528d68db8e3c2c 100644
(file)
--- a/
time.c
+++ b/
time.c
@@
-9,25
+9,29
@@
static unsigned long ns_granularity;
/*
* busy looping version for the last few usec
*/
/*
* busy looping version for the last few usec
*/
-
void
usec_spin(unsigned int usec)
+
uint64_t
usec_spin(unsigned int usec)
{
struct timeval start;
{
struct timeval start;
+ uint64_t t;
fio_gettime(&start, NULL);
fio_gettime(&start, NULL);
- while (
utime_since_now(&start
) < usec)
+ while (
(t = utime_since_now(&start)
) < usec)
nop;
nop;
+
+ return t;
}
}
-
void
usec_sleep(struct thread_data *td, unsigned long usec)
+
uint64_t
usec_sleep(struct thread_data *td, unsigned long usec)
{
struct timespec req;
struct timeval tv;
{
struct timespec req;
struct timeval tv;
+ uint64_t t = 0;
do {
unsigned long ts = usec;
if (usec < ns_granularity) {
do {
unsigned long ts = usec;
if (usec < ns_granularity) {
- usec_spin(usec);
+
t +=
usec_spin(usec);
break;
}
break;
}
@@
-46,11
+50,14
@@
void usec_sleep(struct thread_data *td, unsigned long usec)
break;
ts = utime_since_now(&tv);
break;
ts = utime_since_now(&tv);
+ t += ts;
if (ts >= usec)
break;
usec -= ts;
} while (!td->terminate);
if (ts >= usec)
break;
usec -= ts;
} while (!td->terminate);
+
+ return t;
}
uint64_t time_since_genesis(void)
}
uint64_t time_since_genesis(void)