Re: [External] Re: [PATCH 0/6] Introduce multifd zero page checking.

2024-02-07 Thread Peter Xu
On Wed, Feb 07, 2024 at 04:47:27PM -0800, Hao Xiang wrote: > Sure I will drop "throughput" to avoid confusion. In my testing, 1 > multifd channel already makes the main thread spin at 100%. So the > total-time is the same across 1/2/4 multifd channels as long as zero > page is run on the main migra

Re: [External] Re: [PATCH 0/6] Introduce multifd zero page checking.

2024-02-07 Thread Hao Xiang
On Tue, Feb 6, 2024 at 7:39 PM Peter Xu wrote: > > On Tue, Feb 06, 2024 at 11:19:02PM +, Hao Xiang wrote: > > This patchset is based on Juan Quintela's old series here > > https://lore.kernel.org/all/20220802063907.18882-1-quint...@redhat.com/ > > > > In the multifd live migration model, there

Re: [PATCH 0/6] Introduce multifd zero page checking.

2024-02-06 Thread Peter Xu
On Tue, Feb 06, 2024 at 11:19:02PM +, Hao Xiang wrote: > This patchset is based on Juan Quintela's old series here > https://lore.kernel.org/all/20220802063907.18882-1-quint...@redhat.com/ > > In the multifd live migration model, there is a single migration main > thread scanning the page map,

[PATCH 0/6] Introduce multifd zero page checking.

2024-02-06 Thread Hao Xiang
This patchset is based on Juan Quintela's old series here https://lore.kernel.org/all/20220802063907.18882-1-quint...@redhat.com/ In the multifd live migration model, there is a single migration main thread scanning the page map, queuing the pages to multiple multifd sender threads. The migration