diff options
| -rw-r--r-- | sys/kern/kern_timeout.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/sys/kern/kern_timeout.c b/sys/kern/kern_timeout.c index 738e615..106b670 100644 --- a/sys/kern/kern_timeout.c +++ b/sys/kern/kern_timeout.c @@ -158,6 +158,7 @@ softclock(void *dummy) struct bintime bt1, bt2; struct timespec ts2; static uint64_t maxdt = 36893488147419102LL; /* 2 msec */ + static timeout_t *lastfunc; #endif #ifndef MAX_SOFTCLOCK_STEPS @@ -228,12 +229,17 @@ softclock(void *dummy) binuptime(&bt2); bintime_sub(&bt2, &bt1); if (bt2.frac > maxdt) { + if (lastfunc != c_func || + bt2.frac > maxdt * 2) { + bintime2timespec(&bt2, &ts2); + printf( + "Expensive timeout(9) function: %p(%p) %jd.%09ld s\n", + c_func, c_arg, + (intmax_t)ts2.tv_sec, + ts2.tv_nsec); + } maxdt = bt2.frac; - bintime2timespec(&bt2, &ts2); - printf( - "Expensive timeout(9) function: %p(%p) %ld.%09ld s\n", - c_func, c_arg, - (long)ts2.tv_sec, ts2.tv_nsec); + lastfunc = c_func; } #endif if (!(c_flags & CALLOUT_MPSAFE)) |
