From: Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
To: Izik Eidus <izike-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: [PATCH 0/4] Swapping
Date: Sat, 13 Oct 2007 14:48:31 -0500 [thread overview]
Message-ID: <4711210F.40802@codemonkey.ws> (raw)
In-Reply-To: <47102823.2000600-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Izik Eidus wrote:
> this patchs allow the guest not shadowed memory to be swapped out.
>
> to make it the must effective you should run -kvm-shadow-memory 1 (witch
> will make your machine slow)
> with -kvm-shadow-memory 1, 3giga memory guest can get to be just 32mb
> on physical host!
>
> when not using -kvm-shadow-memory, i saw 4100mb machine getting to as
> low as 168mb on the physical host (not as bad as i thought it would be,
> and surely not as bad as it can be with 41mb of shadow pages :))
>
So what exactly does this option do? Is it really worth exposing it as
an option if it slows down guests so much?
At least, a better name for the option would be nice.
Regards,
Anthony Liguori
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next prev parent reply other threads:[~2007-10-13 19:48 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-13 2:06 [PATCH 0/4] Swapping Izik Eidus
[not found] ` <47102823.2000600-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-13 19:48 ` Anthony Liguori [this message]
[not found] ` <4711210F.40802-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-10-13 20:06 ` Izik Eidus
[not found] ` <4711252F.7020505-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-13 20:21 ` Izik Eidus
[not found] ` <471128B5.5090104-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-13 23:17 ` Anthony Liguori
2007-10-14 0:10 ` Anthony Liguori
[not found] ` <47115E75.1040203-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-10-14 0:14 ` Anthony Liguori
[not found] ` <47115F6A.7080800-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-10-14 6:10 ` Izik Eidus
2007-10-15 9:13 ` Carsten Otte
[not found] ` <47132F57.3040703-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2007-10-15 12:18 ` Izik Eidus
2007-10-15 18:10 ` Anthony Liguori
[not found] ` <4713ACF8.6010809-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-10-15 18:21 ` Izik Eidus
[not found] ` <4713AF9C.8000609-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-15 19:03 ` Anthony Liguori
[not found] ` <4713B97F.7090403-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-10-15 19:16 ` Izik Eidus
[not found] ` <4713BCA4.3080103-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-15 19:29 ` Anthony Liguori
[not found] ` <4713BFB3.8060701-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-10-15 19:50 ` Izik Eidus
[not found] ` <4713C46E.9020107-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-15 20:03 ` Anthony Liguori
[not found] ` <4713C7A3.4050805-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-10-15 20:15 ` Izik Eidus
2007-10-16 9:35 ` Avi Kivity
[not found] ` <471485E2.8090301-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-16 18:29 ` Anthony Liguori
[not found] ` <47150325.3070009-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-10-16 20:01 ` Avi Kivity
2007-10-16 7:37 ` Avi Kivity
2007-10-16 7:38 ` Avi Kivity
2007-10-16 7:36 ` Avi Kivity
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