mirror of
https://github.com/freebsd/freebsd-src
synced 2024-09-06 17:18:32 +00:00
use nanosecond resolution, make sure gettimeofday
is called at most every 100 packets.
This commit is contained in:
parent
11e03b3200
commit
9aff36d897
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=244731
|
@ -144,7 +144,7 @@ timing_loop(struct _a *a)
|
|||
long finishtime;
|
||||
long send_errors, send_calls;
|
||||
/* do not call gettimeofday more than every 20us */
|
||||
long minres_ns = 20000;
|
||||
long minres_ns = 200000;
|
||||
int ic, gettimeofday_cycles;
|
||||
int cur_port;
|
||||
uint64_t n, ns;
|
||||
|
@ -154,17 +154,22 @@ timing_loop(struct _a *a)
|
|||
return (-1);
|
||||
}
|
||||
|
||||
ns = a->interval.tv_nsec;
|
||||
if (timespec_ge(&tmptime, &a->interval))
|
||||
fprintf(stderr,
|
||||
"warning: interval (%jd.%09ld) less than resolution (%jd.%09ld)\n",
|
||||
(intmax_t)a->interval.tv_sec, a->interval.tv_nsec,
|
||||
(intmax_t)tmptime.tv_sec, tmptime.tv_nsec);
|
||||
if (a->interval.tv_nsec < minres_ns) {
|
||||
gettimeofday_cycles = minres_ns/(tmptime.tv_nsec + 1);
|
||||
fprintf(stderr,
|
||||
"calling time every %d cycles\n", gettimeofday_cycles);
|
||||
} else
|
||||
gettimeofday_cycles = 0;
|
||||
/* interval too short, limit the number of gettimeofday()
|
||||
* calls, but also make sure there is at least one every
|
||||
* some 100 packets.
|
||||
*/
|
||||
if ((long)ns < minres_ns/100)
|
||||
gettimeofday_cycles = 100;
|
||||
else
|
||||
gettimeofday_cycles = minres_ns/ns;
|
||||
fprintf(stderr,
|
||||
"calling time every %d cycles\n", gettimeofday_cycles);
|
||||
|
||||
if (clock_gettime(CLOCK_REALTIME, &starttime) == -1) {
|
||||
perror("clock_gettime");
|
||||
|
|
Loading…
Reference in a new issue