RE: The issues about architecture of the COLO checkpoint

2020-03-17 Thread Zhang, Chen
> -Original Message- > From: Dr. David Alan Gilbert > Sent: Friday, March 13, 2020 12:39 AM > To: Lukas Straub > Cc: Zhang, Chen ; Daniel Cho > ; qemu-devel@nongnu.org; Jason Wang > ; Zhanghailiang > Subject: Re: The issues about architecture of the COLO

Re: The issues about architecture of the COLO checkpoint

2020-03-12 Thread Dr. David Alan Gilbert
gt; > Cc: Dr. David Alan Gilbert ; Zhanghailiang > > > ; qemu-devel@nongnu.org; Jason > > > Wang > > > Subject: Re: The issues about architecture of the COLO checkpoint > > > > > > Hi Zhang, > > > > > > Thanks for your help. > &g

Re: The issues about architecture of the COLO checkpoint

2020-03-06 Thread Lukas Straub
g; Jason > > Wang > > Subject: Re: The issues about architecture of the COLO checkpoint > > > > Hi Zhang, > > > > Thanks for your help. > > However, did you occur the error which the function qemu_hexdump in > > colo-compare.c will crash the qemu proce

RE: The issues about architecture of the COLO checkpoint

2020-03-03 Thread Zhang, Chen
> -Original Message- > From: Daniel Cho > Sent: Monday, February 24, 2020 3:15 PM > To: Zhang, Chen > Cc: Dr. David Alan Gilbert ; Zhanghailiang > ; qemu-devel@nongnu.org; Jason > Wang > Subject: Re: The issues about architecture of the COLO checkpoint >

Re: The issues about architecture of the COLO checkpoint

2020-02-23 Thread Daniel Cho
nions, please let us know, and correct > > us. > > It does need a timeout; the SVM being broken or being in a state where > it never sends the corresponding packet (because of a state difference) > can happen and COLO needs to timeout when the packet hasn't

RE: The issues about architecture of the COLO checkpoint

2020-02-23 Thread Zhanghailiang
> > > > > > > > *From:* Zhang, Chen > > *Sent:* Thursday, February 13, 2020 10:10 AM > > *To:* 'Zhanghailiang' > > mailto:zhang.zhanghaili...@huawei.com>>; > > Daniel Cho < > > daniel...@qnap.com<mailto:daniel...@qnap.com>&g

RE: The issues about architecture of the COLO checkpoint

2020-02-23 Thread Zhang, Chen
From: Daniel Cho Sent: Thursday, February 20, 2020 11:49 AM To: Zhang, Chen Cc: Dr. David Alan Gilbert ; Zhanghailiang ; qemu-devel@nongnu.org; Jason Wang Subject: Re: The issues about architecture of the COLO checkpoint Hi Zhang, Thanks, I will configure on code for testing first

Re: The issues about architecture of the COLO checkpoint

2020-02-20 Thread Dr. David Alan Gilbert
( setting COLO feature ): > >>>> > We could force do checkpoint after setting COLO feature finish, > >>>> then it > >>>> > will protect the state of PVM and SVM . As the Zhang Chen said. > >>>>

Re: The issues about architecture of the COLO checkpoint

2020-02-19 Thread Daniel Cho
>>>> > However, those situations are our views, so there might be a big >>>> difference >>>> > between reality and our views. >>>> > If we have any wrong views and opinions, please let us know, and >>>> correct >

Re: The issues about architecture of the COLO checkpoint

2020-02-19 Thread Daniel Cho
> us. >>> >>> It does need a timeout; the SVM being broken or being in a state where >>> it never sends the corresponding packet (because of a state difference) >>> can happen and COLO needs to timeout when the packet hasn't arrived >>> after a while and t

Re: The issues about architecture of the COLO checkpoint

2020-02-19 Thread Zhang, Chen
#x27; mailto:zhang.zhanghaili...@huawei.com>>; Daniel Cho < > > daniel...@qnap.com <mailto:daniel...@qnap.com>> > > *Cc:* Dr. David Alan Gilbert mailto:dgilb...@redhat.com>>; qemu-devel@nongnu.org <mailto:qemu-devel@nongnu.org>

Re: The issues about architecture of the COLO checkpoint

2020-02-18 Thread Daniel Cho
when the packet hasn't arrived >> after a while and trigger the checkpoint. >> >> Dave >> >> > Thanks. >> > >> > Best regards, >> > Daniel Cho >> > >> > Zhang, Chen 於 2020年2月13日 週四 上午10:17寫道: >> > >> >

Re: The issues about architecture of the COLO checkpoint

2020-02-16 Thread Zhang, Chen
* Zhang, Chen > > *Sent:* Thursday, February 13, 2020 10:10 AM > > *To:* 'Zhanghailiang' mailto:zhang.zhanghaili...@huawei.com>>; Daniel Cho < > > daniel...@qnap.com <mailto:daniel...@qnap.com>> > > *Cc:* Dr. David Alan Gilbert mailt

RE: The issues about architecture of the COLO checkpoint

2020-02-16 Thread Zhanghailiang
ruary 15, 2020 11:36 AM To: Dr. David Alan Gilbert Cc: Zhang, Chen ; Zhanghailiang ; qemu-devel@nongnu.org; Jason Wang Subject: Re: The issues about architecture of the COLO checkpoint Hi Dave, Yes, I agree with you, it does need a timeout. Hi Hailiang, We base on qemu-4.1.0 for using COLO fe

Re: The issues about architecture of the COLO checkpoint

2020-02-14 Thread Daniel Cho
; Daniel Cho > > > > Zhang, Chen 於 2020年2月13日 週四 上午10:17寫道: > > > > > Add cc Jason Wang, he is a network expert. > > > > > > In case some network things goes wrong. > > > > > > > > > > > > Thanks > > > > &

Re: The issues about architecture of the COLO checkpoint

2020-02-13 Thread Dr. David Alan Gilbert
; > > > > > > > *From:* Zhang, Chen > > *Sent:* Thursday, February 13, 2020 10:10 AM > > *To:* 'Zhanghailiang' ; Daniel Cho < > > daniel...@qnap.com> > > *Cc:* Dr. David Alan Gilbert ; qemu-devel@nongnu.org > > *Subject:* RE: Th

Re: The issues about architecture of the COLO checkpoint

2020-02-12 Thread Daniel Cho
mpared with SVM > packets. > > But to prevent jamming, I think COLO can do force checkpoint and send the > PVM packets in this case. > > > > Thanks > > Zhang Chen > > > > *From:* Zhanghailiang > *Sent:* Thursday, February 13, 2020 9:45 AM > *To:* Danie

RE: The issues about architecture of the COLO checkpoint

2020-02-12 Thread Zhang, Chen
g>; Zhang, Chen mailto:chen.zh...@intel.com>> Subject: RE: The issues about architecture of the COLO checkpoint Hi, 1. After re-walked through the codes, yes, you are right, actually, after the first migration, we will keep dirty log on in primary side, And only send the dir

RE: The issues about architecture of the COLO checkpoint

2020-02-12 Thread Zhang, Chen
From: Zhanghailiang Sent: Thursday, February 13, 2020 9:45 AM To: Daniel Cho Cc: Dr. David Alan Gilbert ; qemu-devel@nongnu.org; Zhang, Chen Subject: RE: The issues about architecture of the COLO checkpoint Hi, 1. After re-walked through the codes, yes, you are right, actually, after the

RE: The issues about architecture of the COLO checkpoint

2020-02-12 Thread Zhanghailiang
-devel@nongnu.org Subject: Re: The issues about architecture of the COLO checkpoint Hi Hailiang, Thanks for your replaying and explain in detail. We will try to use the attachments to enhance memory copy. However, we have some questions for your replying. 1. As you said, "for each check

RE: The issues about architecture of the COLO checkpoint

2020-02-12 Thread Zhanghailiang
Hi Zhang Chen, > -Original Message- > From: Zhang, Chen [mailto:chen.zh...@intel.com] > Sent: Wednesday, February 12, 2020 1:45 PM > To: Zhanghailiang ; Dr. David Alan > Gilbert ; Daniel Cho > Cc: qemu-devel@nongnu.org > Subject: RE: The issues about architecture o

Re: The issues about architecture of the COLO checkpoint

2020-02-12 Thread Daniel Cho
st regard, Daniel Cho Zhang, Chen 於 2020年2月12日 週三 下午1:45寫道: > > > > -Original Message- > > From: Zhanghailiang > > Sent: Wednesday, February 12, 2020 11:18 AM > > To: Dr. David Alan Gilbert ; Daniel Cho > > ; Zhang, Chen > > Cc: qemu-devel

RE: The issues about architecture of the COLO checkpoint

2020-02-11 Thread Zhang, Chen
> -Original Message- > From: Zhanghailiang > Sent: Wednesday, February 12, 2020 11:18 AM > To: Dr. David Alan Gilbert ; Daniel Cho > ; Zhang, Chen > Cc: qemu-devel@nongnu.org > Subject: RE: The issues about architecture of the COLO checkpoint > > Hi, >

RE: The issues about architecture of the COLO checkpoint

2020-02-11 Thread Zhanghailiang
about architecture of the COLO checkpoint cc'ing in COLO people: * Daniel Cho (daniel...@qnap.com) wrote: > Hi everyone, > We have some issues about setting COLO feature. Hope somebody > could give us some advice. > > Issue 1: > We dynamic to set COLO feature for P

Re: The issues about architecture of the COLO checkpoint

2020-02-11 Thread Dr. David Alan Gilbert
cc'ing in COLO people: * Daniel Cho (daniel...@qnap.com) wrote: > Hi everyone, > We have some issues about setting COLO feature. Hope somebody could > give us some advice. > > Issue 1: > We dynamic to set COLO feature for PVM(2 core, 16G memory), but the > Primary VM will pause a lon