|
|
Log in / Subscribe / Register

Faster page faulting through prezeroing

Faster page faulting through prezeroing

Posted Jan 13, 2005 22:49 UTC (Thu) by zhjy (guest, #27228)
In reply to: Faster page faulting through prezeroing by huaz
Parent article: Faster page faulting through prezeroing

I didn't the code. What I guess is that kscrubd can zero'ed a lot of pages once, then it can save some unnecessary cache eviction.

to post comments

Faster page faulting through prezeroing

Posted Jan 14, 2005 14:40 UTC (Fri) by zhjy (guest, #27228) [Link]

Another small thing is: when context switching between processes, anyway, the cache lines may be filled by new ones, so kscrubd will not add much cache pollution. But page fault handling is a synchronous operation and after that you still are in the same context. In that case, cache pollution is bad.


Copyright © 2026, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds