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Re: [Xen-devel] [PATCH][TOOLS] Reducing impact of domainsave/restore/dum
| To: | "Graham, Simon" <Simon.Graham@xxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH][TOOLS] Reducing impact of domainsave/restore/dump on Dom0 |
| From: | Keir Fraser <keir@xxxxxxxxxxxxx> |
| Date: | Wed, 21 Feb 2007 10:34:14 +0000 |
| Delivery-date: | Wed, 21 Feb 2007 02:33:39 -0800 |
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| Thread-index: | AcdO73yfygbdSnxbR/2AnMRpBcbdNgAy2MewAXo9Plo= |
| Thread-topic: | [Xen-devel] [PATCH][TOOLS] Reducing impact of domainsave/restore/dump on Dom0 |
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On 13/2/07 22:12, "Graham, Simon" <Simon.Graham@xxxxxxxxxxx> wrote: > Reduce impact of saving/restoring/dumping large domains on Dom0 memory > usage by means of fadvise64() to tell the OS to discard the cache pages > used for the save/dump file. > > Signed-off-by: Simon Graham <Simon.Graham@xxxxxxxxxxx> Could the fadvise() logic be shared more than it is in this patch? Also you sometimes sync-then-fadvise. Is this just a performance enhancement (presumably fadvise wouldn't simply discard dirty pages in the buffer cache)? -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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