Messages in this thread | | | Date | Mon, 28 Jun 2004 11:41:33 -0400 | From | Timothy Miller <> | Subject | Re: Nice 19 process still gets some CPU |
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Con Kolivas wrote:
> > It definitely should _not_ starve. That is the unixy way of doing > things. Everything must go forward. Around 5% cpu for nice 19 sounds > just right. If you want scheduling only when there's spare cpu cycles > you need a sched batch(idle) implementation. > >
Well, since I can't rewrite the app, I can't make it sched batch. Nice values are an easy thing to get at for anything that's running.
Besides, comparing nice 0 to nice 19, I'd expect something more like a 100:1 ratio or worse. (That is, I don't expect nice to be linear.)
Maybe this is just me, but when I set a process to the worst possible priority (nice 19), I expect it only to run when nothing else needs the CPU.
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