diff options
| author | John Baldwin <jhb@FreeBSD.org> | 2008-01-17 18:59:38 +0000 |
|---|---|---|
| committer | John Baldwin <jhb@FreeBSD.org> | 2008-01-17 18:59:38 +0000 |
| commit | c05655bfda46e1ea6ddeee5a6c12ea44ddff28ec (patch) | |
| tree | 3c99a002d20f9c0c3ae39a1f03e4eb826f36bb6e /sys/amd64/isa/clock.c | |
| parent | 6634dbbde405683056b1535136993a0155b874eb (diff) | |
Notes
Diffstat (limited to 'sys/amd64/isa/clock.c')
| -rw-r--r-- | sys/amd64/isa/clock.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/amd64/isa/clock.c b/sys/amd64/isa/clock.c index 2809828150be..32752672b7fe 100644 --- a/sys/amd64/isa/clock.c +++ b/sys/amd64/isa/clock.c @@ -286,6 +286,7 @@ DELAY(int n) start = rdtsc(); end = start + (tsc_freq * n) / 1000000; do { + cpu_spinwait(); now = rdtsc(); } while (now < end || (now > start && end < start)); sched_unpin(); |