Re: Populating multiple ptes at fault time

[KAMEZAWA Hiroyuki]

On Thu, 18 Sep 2008 08:50:05 +0900
"MinChan Kim" <minchan.kim@xxxxxxxxx> wrote:

> Hi, all
> 
> I have been thinking about this idea in native.
> I didn't consider it in minor page fault.
> As you know, it costs more cheap than major fault.
> However, the page fault is one of big bottleneck on demand-paging system.
> I think major fault might be a rather big overhead in many core system.
> 
> What do you think about this idea in native ?
> Do you really think that this idea don't help much in native ?
> 
Hmm, is enlarging page-size-for-anonymous-page more difficult ?
(maybe, yes.)

> If I implement it in native, What kinds of benchmark do I need?
> Could you recommend any benchmark ?
> 

Testing some kind of scripts (shell/perl etc..) is candidates.

I use unixbench's exec/shell test to see charge/uncharge overhead of memory
resource controller, which happens at major page fault.

Thanks,
-Kame

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