[lkml]   [2005]   [Dec]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 6/9] clockpro-clockpro.patch
On Fri, 30 Dec 2005, Marcelo Tosatti wrote:

> I think that final objective should be to abstract it away completly,
> making it possible to select between different policies, allowing
> further experimentation and implementations such as energy efficient
> algorithms.

I'm not convinced. That might just make vmscan.c harder to read ;)

> About CLOCK-Pro itself, I think that a small document with a short
> introduction would be very useful...

> > The HandCold rotation is driven by page reclaim needs. HandCold in turn
> > drives HandHot, for every page HandCold promotes to hot HandHot needs to
> > degrade one hot page to cold.
> Why do you use only two clock hands and not three (HandHot, HandCold and
> HandTest) as in the original paper?

Because the non-resident pages cannot be in the clock.
This is both because of space overhead, and because the
non-resident list cannot be per zone.

I agree though, Peter's patch could use a lot more

All Rights Reversed
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-12-31 02:25    [W:0.112 / U:0.676 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site