om; sunhao2 [孙昊] ; DENGLINWEN [邓林文]
; YANGFENG1 [杨峰]
主题: Re: [PATCH] migration/rdma: Use huge page register VM memory
* Daniel P. Berrangé (berra...@redhat.com) wrote:
> On Mon, Jun 07, 2021 at 01:57:02PM +, LIZHAOXIN1 [李照鑫] wrote:
> > When using libvirt for RDMA live migration,
qemu-devel@nongnu.org; quint...@redhat.com; dgilb...@redhat.com; sunhao2
[孙昊] ; DENGLINWEN [邓林文] ;
YANGFENG1 [杨峰]
主题: Re: [PATCH] migration/rdma: Use huge page register VM memory
On Mon, Jun 07, 2021 at 01:57:02PM +, LIZHAOXIN1 [李照鑫] wrote:
> When using libvirt for RDMA live migration, if
* Daniel P. Berrangé (berra...@redhat.com) wrote:
> On Mon, Jun 07, 2021 at 01:57:02PM +, LIZHAOXIN1 [李照鑫] wrote:
> > When using libvirt for RDMA live migration, if the VM memory is too large,
> > it will take a lot of time to deregister the VM at the source side,
> > resulting
> > in a long d
On Mon, Jun 07, 2021 at 01:57:02PM +, LIZHAOXIN1 [李照鑫] wrote:
> When using libvirt for RDMA live migration, if the VM memory is too large,
> it will take a lot of time to deregister the VM at the source side, resulting
> in a long downtime (VM 64G, deregister vm time is about 400ms).
>
> A
When using libvirt for RDMA live migration, if the VM memory is too large,
it will take a lot of time to deregister the VM at the source side, resulting
in a long downtime (VM 64G, deregister vm time is about 400ms).
Although the VM's memory uses 2M huge pages, the MLNX driver still uses 4K
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