Re: pmap revisited

Rik van Riel (riel@conectiva.com.br)
Tue, 4 Sep 2001 13:16:14 -0300 (BRST)


On Tue, 4 Sep 2001, Samium Gromoff wrote:

> Gotta wrong results in my previous perftest... (slightly different
> environments), so these are to be sure that on low VM load there isnt
> any significant difference...

As expected, the current patch only modifies mechanisms and
leaves most policy the same. Under some loads there is a
difference, but under light VM loads the same-policy-more-info
replacement should indeed be pretty similar.

> Bonus: two bugs! :)
> 1. Quintela`s (shmtest of memtest) and pmap{2,3} == 100% instant deadlock
> plain ac12 demonstrates ignorance.

I'll try to reproduce that one when I get back home thursday.

> 2. Swapoff oops 100% - only in pmap3! (okay, swapoff of reiserfs
> to be strict, but i think that doesnt actually matters)
> swapoff oops will be in next mail.

This one is fixed. I'll be sitting inside a big tin can with
wings all day tomorrow, but thursday I'll try to post a new
version, hopefully with both these bugs fixed.

Thanks for testing the patch and pointing out the bugs!

regards,

Rik

-- 
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