Re: [Xen-devel] [BUG] mistakenly wake in Xen's credit scheduler

2015-10-28 Thread suokun
On Tue, Oct 27, 2015 at 11:41 PM, Dario Faggioli wrote: > On Tue, 2015-10-27 at 14:32 -0600, suokun wrote: >> On Tue, Oct 27, 2015 at 4:44 AM, Dario Faggioli >> wrote: > >> Hi, Dario, >> Thank you for your reply. >> > Hi, > >> Here are my two V

Re: [Xen-devel] [BUG] mistakenly wake in Xen's credit scheduler

2015-10-27 Thread suokun
On Tue, Oct 27, 2015 at 2:11 PM, suokun wrote: > On Tue, Oct 27, 2015 at 3:44 AM, George Dunlap wrote: >> On Tue, Oct 27, 2015 at 5:59 AM, suokun wrote: >>> Hi all, >>> >>> The BOOST mechanism in Xen credit scheduler is designed to prioritize >>> VM

Re: [Xen-devel] [BUG] mistakenly wake in Xen's credit scheduler

2015-10-27 Thread suokun
On Tue, Oct 27, 2015 at 4:44 AM, Dario Faggioli wrote: > On Mon, 2015-10-26 at 23:59 -0600, suokun wrote: >> Hi all, >> > Hi, > > And first of all, thanks for resending in plain text, this is much > appreciated. > > Thanks also for the report. I'm not s

Re: [Xen-devel] [BUG] mistakenly wake in Xen's credit scheduler

2015-10-27 Thread suokun
On Tue, Oct 27, 2015 at 3:44 AM, George Dunlap wrote: > On Tue, Oct 27, 2015 at 5:59 AM, suokun wrote: >> Hi all, >> >> The BOOST mechanism in Xen credit scheduler is designed to prioritize >> VM which has I/O-intensive application to handle the I/O request in >

[Xen-devel] [BUG] mistakenly wake in Xen's credit scheduler

2015-10-27 Thread suokun
Hi all, The BOOST mechanism in Xen credit scheduler is designed to prioritize VM which has I/O-intensive application to handle the I/O request in time. However, this does not always work as expected. (1) Problem description Suppose two VMs(named VM-I/O and VM-CPU