Re: [Qemu-devel] QEMU MicroCheckpointing Pause & Resume Latency

2017-03-09 Thread Paolo Bonzini
On 09/03/2017 18:06, Dr. David Alan Gilbert wrote: > (cc'ing in Paolo since he knows our barrier code) > > * FENG, Jiasheng (nikof...@connect.hku.hk) wrote: >> Dear David, >> >> Really appreciate your feedback. >> >> I have proceeded the experiments in both conditions, and no matter the >> vCPUs

Re: [Qemu-devel] QEMU MicroCheckpointing Pause & Resume Latency

2017-03-09 Thread nikofeng
@nongnu.org; Wang Cheng; YE, Chen; CHEN, XUSHENG; Heming Cui; pbonz...@redhat.com Subject: Re: [Qemu-devel] QEMU MicroCheckpointing Pause & Resume Latency (cc'ing in Paolo since he knows our barrier code) * FENG, Jiasheng (nikof...@connect.hku.hk) wrote: > Dear David, > > Really apprec

Re: [Qemu-devel] QEMU MicroCheckpointing Pause & Resume Latency

2017-03-09 Thread Dr. David Alan Gilbert
(cc'ing in Paolo since he knows our barrier code) * FENG, Jiasheng (nikof...@connect.hku.hk) wrote: > Dear David, > > Really appreciate your feedback. > > I have proceeded the experiments in both conditions, and no matter the > vCPUs are in idle or busy situation, there is no difference that smp

Re: [Qemu-devel] QEMU MicroCheckpointing Pause & Resume Latency

2017-03-09 Thread FENG, Jiasheng
Dear David, Really appreciate your feedback. I have proceeded the experiments in both conditions, and no matter the vCPUs are in idle or busy situation, there is no difference that smp_wmb() will consume a lot of time to proceed its work. In your opinion, may I know that what is the alternative

Re: [Qemu-devel] QEMU MicroCheckpointing Pause & Resume Latency

2017-03-09 Thread Dr. David Alan Gilbert
* FENG, Jiasheng (nikof...@connect.hku.hk) wrote: > Dear QEMU Development Team, > > > It is my honor to contact with you. > > > > I am a postgraduate student from University of Hong Kong. Currently I am > working on a project related to QEMU MicroCheckpointing and I have > encountered a perfor

[Qemu-devel] QEMU MicroCheckpointing Pause & Resume Latency

2017-03-09 Thread FENG, Jiasheng
Dear QEMU Development Team, It is my honor to contact with you. I am a postgraduate student from University of Hong Kong. Currently I am working on a project related to QEMU MicroCheckpointing and I have encountered a performance issue during checkpoint pause & resume. Please kindly refer t