Re: [Qemu-devel] [PATCH v3 1/1] migration: calculate expected_downtime with ram_bytes_remaining()

2018-06-08 Thread Laurent Vivier
Hi, I had time to investigate more on this problem. On 16/05/2018 15:43, Laurent Vivier wrote: > Hi Bala, > > I've tested you patch migrating a pseries between a P9 host and a P8 > host with 1G huge page size on the P9 side and 16MB on P8 side and the > information are strange now. > >

Re: [Qemu-devel] [PATCH v3 1/1] migration: calculate expected_downtime with ram_bytes_remaining()

2018-05-22 Thread Balamuruhan S
On Wed, May 16, 2018 at 03:43:48PM +0200, Laurent Vivier wrote: > Hi Bala, > > I've tested you patch migrating a pseries between a P9 host and a P8 > host with 1G huge page size on the P9 side and 16MB on P8 side and the > information are strange now. Hi Laurent, Thank you for testing the patch,

Re: [Qemu-devel] [PATCH v3 1/1] migration: calculate expected_downtime with ram_bytes_remaining()

2018-05-16 Thread Laurent Vivier
Hi Bala, I've tested you patch migrating a pseries between a P9 host and a P8 host with 1G huge page size on the P9 side and 16MB on P8 side and the information are strange now. "remaining ram" doesn't change, and after a while it can be set to "0" and estimated downtime is 0 too, but the

Re: [Qemu-devel] [PATCH v3 1/1] migration: calculate expected_downtime with ram_bytes_remaining()

2018-05-01 Thread Balamuruhan S
Hi, Dave, David and Juan if you guys are okay with the patch, please help to merge it. Thanks, Bala On Wed, Apr 25, 2018 at 12:40:40PM +0530, Balamuruhan S wrote: > expected_downtime value is not accurate with dirty_pages_rate * page_size, > using ram_bytes_remaining would yeild it correct. It

[Qemu-devel] [PATCH v3 1/1] migration: calculate expected_downtime with ram_bytes_remaining()

2018-04-25 Thread Balamuruhan S
expected_downtime value is not accurate with dirty_pages_rate * page_size, using ram_bytes_remaining would yeild it correct. It will initially be a gross over-estimate, but for for non-converging migrations it should approach a reasonable estimate later on. currently bandwidth and