Re: [External] : Re: [PATCH v4 2/2] vhost: Perform memory section dirty scans once per iteration

2024-03-25 Thread Jason Wang
On Tue, Mar 26, 2024 at 7:21 AM Si-Wei Liu wrote: > > > > On 3/24/2024 11:13 PM, Jason Wang wrote: > > On Sat, Mar 23, 2024 at 5:14 AM Si-Wei Liu wrote: > >> > >> > >> On 3/21/2024 10:08 PM, Jason Wang wrote: > >>> On Fri, Mar 22, 2024 at 5:43 AM Si-Wei Liu wrote: > > On 3/20/2024

Re: [External] : Re: [PATCH v4 2/2] vhost: Perform memory section dirty scans once per iteration

2024-03-25 Thread Si-Wei Liu
On 3/24/2024 11:13 PM, Jason Wang wrote: On Sat, Mar 23, 2024 at 5:14 AM Si-Wei Liu wrote: On 3/21/2024 10:08 PM, Jason Wang wrote: On Fri, Mar 22, 2024 at 5:43 AM Si-Wei Liu wrote: On 3/20/2024 8:56 PM, Jason Wang wrote: On Thu, Mar 21, 2024 at 5:03 AM Si-Wei Liu wrote: On

Re: [PATCH v4 2/2] vhost: Perform memory section dirty scans once per iteration

2024-03-25 Thread Jason Wang
On Sat, Mar 23, 2024 at 5:14 AM Si-Wei Liu wrote: > > > > On 3/21/2024 10:08 PM, Jason Wang wrote: > > On Fri, Mar 22, 2024 at 5:43 AM Si-Wei Liu wrote: > >> > >> > >> On 3/20/2024 8:56 PM, Jason Wang wrote: > >>> On Thu, Mar 21, 2024 at 5:03 AM Si-Wei Liu wrote: > > On 3/19/2024 8:27

Re: [PATCH v4 2/2] vhost: Perform memory section dirty scans once per iteration

2024-03-22 Thread Si-Wei Liu
On 3/21/2024 10:08 PM, Jason Wang wrote: On Fri, Mar 22, 2024 at 5:43 AM Si-Wei Liu wrote: On 3/20/2024 8:56 PM, Jason Wang wrote: On Thu, Mar 21, 2024 at 5:03 AM Si-Wei Liu wrote: On 3/19/2024 8:27 PM, Jason Wang wrote: On Tue, Mar 19, 2024 at 6:16 AM Si-Wei Liu wrote: On

Re: [PATCH v4 2/2] vhost: Perform memory section dirty scans once per iteration

2024-03-21 Thread Jason Wang
On Fri, Mar 22, 2024 at 5:43 AM Si-Wei Liu wrote: > > > > On 3/20/2024 8:56 PM, Jason Wang wrote: > > On Thu, Mar 21, 2024 at 5:03 AM Si-Wei Liu wrote: > >> > >> > >> On 3/19/2024 8:27 PM, Jason Wang wrote: > >>> On Tue, Mar 19, 2024 at 6:16 AM Si-Wei Liu wrote: > > On 3/17/2024 8:22

Re: [PATCH v4 2/2] vhost: Perform memory section dirty scans once per iteration

2024-03-21 Thread Si-Wei Liu
On 3/20/2024 8:56 PM, Jason Wang wrote: On Thu, Mar 21, 2024 at 5:03 AM Si-Wei Liu wrote: On 3/19/2024 8:27 PM, Jason Wang wrote: On Tue, Mar 19, 2024 at 6:16 AM Si-Wei Liu wrote: On 3/17/2024 8:22 PM, Jason Wang wrote: On Sat, Mar 16, 2024 at 2:45 AM Si-Wei Liu wrote: On 3/14/2024

Re: [PATCH v4 2/2] vhost: Perform memory section dirty scans once per iteration

2024-03-20 Thread Jason Wang
On Thu, Mar 21, 2024 at 5:03 AM Si-Wei Liu wrote: > > > > On 3/19/2024 8:27 PM, Jason Wang wrote: > > On Tue, Mar 19, 2024 at 6:16 AM Si-Wei Liu wrote: > >> > >> > >> On 3/17/2024 8:22 PM, Jason Wang wrote: > >>> On Sat, Mar 16, 2024 at 2:45 AM Si-Wei Liu wrote: > > On 3/14/2024 9:03

Re: [PATCH v4 2/2] vhost: Perform memory section dirty scans once per iteration

2024-03-20 Thread Si-Wei Liu
On 3/19/2024 8:27 PM, Jason Wang wrote: On Tue, Mar 19, 2024 at 6:16 AM Si-Wei Liu wrote: On 3/17/2024 8:22 PM, Jason Wang wrote: On Sat, Mar 16, 2024 at 2:45 AM Si-Wei Liu wrote: On 3/14/2024 9:03 PM, Jason Wang wrote: On Fri, Mar 15, 2024 at 5:39 AM Si-Wei Liu wrote: On setups

Re: [PATCH v4 2/2] vhost: Perform memory section dirty scans once per iteration

2024-03-19 Thread Jason Wang
On Tue, Mar 19, 2024 at 6:16 AM Si-Wei Liu wrote: > > > > On 3/17/2024 8:22 PM, Jason Wang wrote: > > On Sat, Mar 16, 2024 at 2:45 AM Si-Wei Liu wrote: > >> > >> > >> On 3/14/2024 9:03 PM, Jason Wang wrote: > >>> On Fri, Mar 15, 2024 at 5:39 AM Si-Wei Liu wrote: > On setups with one or

Re: [PATCH v4 2/2] vhost: Perform memory section dirty scans once per iteration

2024-03-18 Thread Si-Wei Liu
On 3/17/2024 8:22 PM, Jason Wang wrote: On Sat, Mar 16, 2024 at 2:45 AM Si-Wei Liu wrote: On 3/14/2024 9:03 PM, Jason Wang wrote: On Fri, Mar 15, 2024 at 5:39 AM Si-Wei Liu wrote: On setups with one or more virtio-net devices with vhost on, dirty tracking iteration increases cost the

Re: [PATCH v4 2/2] vhost: Perform memory section dirty scans once per iteration

2024-03-17 Thread Jason Wang
On Sat, Mar 16, 2024 at 2:45 AM Si-Wei Liu wrote: > > > > On 3/14/2024 9:03 PM, Jason Wang wrote: > > On Fri, Mar 15, 2024 at 5:39 AM Si-Wei Liu wrote: > >> On setups with one or more virtio-net devices with vhost on, > >> dirty tracking iteration increases cost the bigger the number > >> amount

Re: [PATCH v4 2/2] vhost: Perform memory section dirty scans once per iteration

2024-03-15 Thread Si-Wei Liu
On 3/14/2024 9:03 PM, Jason Wang wrote: On Fri, Mar 15, 2024 at 5:39 AM Si-Wei Liu wrote: On setups with one or more virtio-net devices with vhost on, dirty tracking iteration increases cost the bigger the number amount of queues are set up e.g. on idle guests migration the following is

Re: [PATCH v4 2/2] vhost: Perform memory section dirty scans once per iteration

2024-03-14 Thread Jason Wang
On Fri, Mar 15, 2024 at 5:39 AM Si-Wei Liu wrote: > > On setups with one or more virtio-net devices with vhost on, > dirty tracking iteration increases cost the bigger the number > amount of queues are set up e.g. on idle guests migration the > following is observed with virtio-net with vhost=on: