On Thu, 5 Jan 2006, Kurt D. Zeilenga wrote:
At 08:05 PM 1/5/2006, Kurt D. Zeilenga wrote:
I suppose we could devise some kind of test that uses two processes, one that
spins eating CPU cycles, and another that spawns one thread that does a yield,
while the main thread does a computation. If the yield causes the entire
process to lose the CPU, the main thread's computation will be impeded. But it
may be better to just test $build_os for now.
For now, yes
Okay, I've committed a basic detection code for
REPLACE_SCHED_YIELD as well as updated replacement
code. Currently uses select(2), but can be switched
to nanosleep(2).
I've only tested on FreeBSD4 where this is a no-op.
Now pushing to a Linux box for real testing.
nanosleep(2) should work on Solaris (at least 8, 9 and 10) as well.
--
Igor
