Messages in this thread | | | Date | Thu, 4 Apr 1996 08:20:53 -0500 | From | Nat Friedman <> | Subject | nanosleep |
| |
Tom Bjorkholm writes:
> nanosleep
Speaking of which, from nanosleep:
if (t.tv_sec == 0 && t.tv_nsec <= 2000000L && current->policy != SCHED_OTHER) { /* * Short delay requests up to 2 ms will be handled with * high precision by a busy wait for all real-time processes. */ udelay((t.tv_nsec + 999) / 1000); return 0; }
Busy waiting for 2ms seems like a performance hit - 2 micro seconds maybe...
-Nat
| |