Messages in this thread | | | Date | Thu, 21 Jan 1999 16:05:33 -0700 (MST) | From | Quantum Porcupine <> | Subject | Scheduler set to 1000Hz |
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(I'm not subscribed to the list, as my quota can't handle the load. :) Please reply to me as well as to the list, if possible.)
I've just noticed a bug with having my scheduler set to 1000Hz (by editing /usr/src/linux/include/asm/param.h, of course). Although scheduling does, in fact, seem smoother, ps returns that a process has been running longer than it really has; in fact, it's by exactly a factor of 10, go figure. Just to prove this, I ran the following simple script (PID 1097 is, obviously, rc5des):
while (1) ps 1097 | tail -1 sleep 1 end
I get results like this:
1097 p0 R N517:34 ./rc5des 1097 p0 R N517:44 ./rc5des 1097 p0 R N517:54 ./rc5des 1097 p0 R N518:04 ./rc5des 1097 p0 R N518:14 ./rc5des 1097 p0 R N518:24 ./rc5des 1097 p0 R N518:34 ./rc5des 1097 p0 R N518:44 ./rc5des 1097 p0 R N518:54 ./rc5des 1097 p0 R N519:04 ./rc5des 1097 p0 R N519:14 ./rc5des 1097 p0 R N519:24 ./rc5des 1097 p0 R N519:34 ./rc5des 1097 p0 R N519:44 ./rc5des
Now, just in case it matters (though I seriously doubt it), I *am* running my system (a Celeron 300A) overclocked to 450. Also, I'm still running 2.2.0-pre7, so if this bug has been fixed since then, my apologies; however, I didn't see any mention of this in my quick perusal of the last couple weeks' worth of the list archives at linuxhq.com.
This isn't really a fatal problem, but it is a bit annoying to have to worry about, and it dosen't seem like the kind of thing that would take long to fix.
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