Re: [RFC-PATCH 0/7] Memory Compaction v1

From: KOSAKI Motohiro
Date: Thu Jan 21 2010 - 19:17:06 EST

> > > Comments?
> >
> > I think "Total pages reclaimed" increasing is not good thing ;)
> First, I made a mistake in the patch. With the bug fixed, they're
> reduced. See the post later in the thread

Oh, I see. I'm glad the issue was alredy fixed.

> > Honestly, I haven't understand why your patch increase reclaimed and
> > the exactly meaning of the your tool's rclm field.
> >
> > Can you share your mesurement script? May I run the same test?
> Unfortunately at the moment it's part of a mini-testgrid setup I run out
> of the house. It doesn't lend itself to being stand-alone. I'll break it
> out as part of the next release.

surely good news :)

> > I like this patch, but I don't like increasing reclaim. I'd like to know
> > this patch require any vmscan change and/or its change mitigate the issue.
> >
> With the bug repaired, reclaims go from 105132 to 45935 with more huge
> pages allocated so right now, no special action is required.

ok. thanks.

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