Hi Peter, Any update on this patch set. Is it merged?
On Wed, Jun 29, 2016 at 12:30 PM, Vijay Kilari <vijay.kil...@gmail.com> wrote: > On Wed, Jun 29, 2016 at 12:24 PM, Kumar, Vijaya <vijaya.ku...@cavium.com> > wrote: >> >> >> >> ________________________________ >> From: Peter Maydell <peter.mayd...@linaro.org> >> Sent: Tuesday, June 28, 2016 1:46 PM >> To: qemu-arm; QEMU Developers >> Cc: Paolo Bonzini; Kumar, Vijaya; Patch Tracking >> Subject: Re: [Qemu-arm] [PATCH v2 0/6] Runtime pagesize computation >> >> On 21 June 2016 at 18:09, Peter Maydell <peter.mayd...@linaro.org> wrote: >>> This set of patches is a development based on the ones from Vijaya: >>> the general idea is similar but I have tried to improve the interface >>> for defining the page size a bit. I've also tweaked patches 2 and 3 >>> to address code review comments. >> >>> NB: I have only very lightly tested these and haven't attempted >>> to measure performance at all. There is an assert() in the >>> definition of TARGET_PAGE_BITS which is good for making sure >>> it isn't used before it's valid but not so good for speed. >> >> Vijaya, are you in a position to test this patchset for >> performance? Presumably you have a test case benchmark you're >> looking to improve here? > > I have tested the patches and the test case that I was trying was > Live migration of Idle VM on arm64 platform. > VM migrated is with 4 VCPUS and 8GB RAM running CentOS. > > With page bits 10 (1K), the live migration time is 5.8 sec > > capabilities: xbzrle: off rdma-pin-all: off auto-converge: off > zero-blocks: off compress: off events: off x-postcopy-ram: off > Migration status: completed > total time: 5857 milliseconds > downtime: 102 milliseconds > setup: 14 milliseconds > transferred ram: 336081 kbytes > throughput: 470.21 mbps > remaining ram: 0 kbytes > total ram: 8519872 kbytes > duplicate: 8271539 pages > skipped: 0 pages > normal: 261340 pages > normal bytes: 261340 kbytes > dirty sync count: 3 > > With page bits 12 (4K), live migration time is 2.9 sec > > capabilities: xbzrle: off rdma-pin-all: off auto-converge: off > zero-blocks: off compress: off events: off x-postcopy-ram: off > Migration status: completed > total time: 2974 milliseconds > downtime: 76 milliseconds > setup: 5 milliseconds > transferred ram: 301327 kbytes > throughput: 830.30 mbps > remaining ram: 0 kbytes > total ram: 8519872 kbytes > duplicate: 2062398 pages > skipped: 0 pages > normal: 70662 pages > normal bytes: 282648 kbytes > dirty sync count: 3 > > Regards > Vijay >> >> thanks >> -- PMM
