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| From: | Michael R. Hines |
| Subject: | Re: [Qemu-devel] [RFC PATCH RDMA support v4: 03/10] more verbose documentation of the RDMA transport |
| Date: | Tue, 19 Mar 2013 14:04:44 -0400 |
| User-agent: | Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 |
On 03/19/2013 01:52 PM, Paolo Bonzini wrote:
So, if I submit a separate patch to fix this, would you guys review it? (Using /dev/pagemap). Sorry about the ignorance, but what is /dev/pagemap? :)
/dev/pagemap is a recent interface for eserland accesses to the pagetables. https://www.kernel.org/doc/Documentation/vm/pagemap.txt It would very easily tell you (without extra tracking) which pages were mapped and which were not mapped. It should work for both cgroups and ballooning. We've used it before. - Michael
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