Re: 2.2.0-pre1 worse than 2.1.132

Jakub Jelinek (jj@sunsite.ms.mff.cuni.cz)
Tue, 29 Dec 1998 17:20:45 +0100 (CET)

> And, is there some reason to left the check_pgt_cache() in the idle task
> and not in vmscan.c as with kmem_cache_reap()?

Yep, there is. Page table cache intentionally does no locking, so on SMP
the CPU can mangle its own cache only and cannot touch other CPUs caches.

Cheers,
Jakub
___________________________________________________________________
Jakub Jelinek | jj@sunsite.mff.cuni.cz | http://sunsite.mff.cuni.cz
Administrator of SunSITE Czech Republic, MFF, Charles University
___________________________________________________________________
UltraLinux | http://ultra.linux.cz/ | http://ultra.penguin.cz/
Linux version 2.1.130 on a sparc64 machine (3958.37 BogoMips)
___________________________________________________________________

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