Messages in this thread | | | From | Jakub Jelinek <> | Subject | Re: failure notice (fwd) | Date | Sat, 28 Feb 1998 11:10:49 +0100 (MET) |
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> It's only when it happens in less than 1 second that it's an issue. Last > I checked even Linux can't fork 16k times per second. But next year or > the year after that's not an unreasonable figure given hardware and > software improvements.
We are pretty close though. On 300MHz UltraII we have now fork+exit+wait time around 100usec (that is fork 10k times per second), but I have ideas how to speed that up (and with 50usec we can do 20k times per second).
On the other side, if I understood Davem's approach, the pids might get reused sooner, after 32K/NR_TASKS (just in the rare case one task_slot will be used for all the tasks forked), which is usually 64 times.
Cheers, Jakub ___________________________________________________________________ Jakub Jelinek | jj@sunsite.mff.cuni.cz | http://sunsite.mff.cuni.cz Administrator of SunSITE Czech Republic, MFF, Charles University ___________________________________________________________________ Ultralinux - first 64bit OS to take full power of the UltraSparc Linux version 2.1.88 on a sparc64 machine (498.80 BogoMips). ___________________________________________________________________
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