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[Xen-devel] Re: [Qemu-devel] [PATCH] xen-mapcache: Fix rlimit set size.
| To: | Alexander Graf <agraf@xxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Re: [Qemu-devel] [PATCH] xen-mapcache: Fix rlimit set size. |
| From: | Anthony PERARD <anthony.perard@xxxxxxxxxx> |
| Date: | Thu, 4 Aug 2011 14:33:44 +0100 |
| Cc: | Anthony PERARD <anthony.perard@xxxxxxxxxx>, Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, QEMU-devel <qemu-devel@xxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> |
| Delivery-date: | Thu, 04 Aug 2011 06:35:00 -0700 |
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On Tue, Aug 2, 2011 at 15:50, Alexander Graf <agraf@xxxxxxx> wrote: > On 08/01/2011 09:26 PM, Anthony PERARD wrote: >> >> Previously, the address space soft limit was set mcache_max_size. So, >> before the mcache_max_size was reached by the mapcache, QEMU was killed >> for overuse of the virtual address space. >> >> This patch fix that by setting the soft limit to mcache_max_size + 80MB. >> I observed that QEMU use 75MB more than max_mcache_size after several >> empirical tests. > > Not sure I understand. What are those 75MB? I did the calculation like that: - I make sure that the MapCache was full. - I did the difference between the value in mapcache->max_mcache_size and the size of the used address space by the QEMU process. -- Anthony PERARD _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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