RE: [PATCH-for-9.1 v2 2/3] migration: Remove RDMA protocol handling

2024-06-10 Thread Gonglei (Arei) via Devel
Hi, > -Original Message- > From: Peter Xu [mailto:pet...@redhat.com] > Sent: Thursday, June 6, 2024 5:19 AM > To: Dr. David Alan Gilbert > Cc: Michael Galaxy ; zhengchuan > ; Gonglei (Arei) ; > Daniel P. Berrangé ; Markus Armbruster > ; Yu Zhang ; Zhijian Li (Fujitsu) > ; Jinpu Wang ;

RE: [PATCH-for-9.1 v2 2/3] migration: Remove RDMA protocol handling

2024-05-31 Thread Gonglei (Arei) via Devel
Hi, > -Original Message- > > > > https://lore.kernel.org/qemu-devel/CAMGffEn-DKpMZ4tA71MJYdyemg0Zda > > > > > > 15 > > > > > > > > wvaqk81vxtkzx-l...@mail.gmail.com/ > > > > > > > > > > > > > > > > Appreciate a lot for everyone helping on the testings. > > > > > > > > > > > > > > > > >

RE: [PATCH-for-9.1 v2 2/3] migration: Remove RDMA protocol handling

2024-05-31 Thread Gonglei (Arei) via Devel
> -Original Message- > From: Jinpu Wang [mailto:jinpu.w...@ionos.com] > Sent: Wednesday, May 29, 2024 5:18 PM > To: Gonglei (Arei) > Cc: Greg Sword ; Peter Xu ; > Yu Zhang ; Michael Galaxy ; > Elmar Gerdes ; zhengchuan > ; Daniel P. Berrangé ; > Markus Armbruster ; Zhijian Li (Fujitsu)

RE: [PATCH-for-9.1 v2 2/3] migration: Remove RDMA protocol handling

2024-05-31 Thread Gonglei (Arei) via Devel
> -Original Message- > From: Greg Sword [mailto:gregswo...@gmail.com] > Sent: Wednesday, May 29, 2024 2:06 PM > To: Jinpu Wang > Subject: Re: [PATCH-for-9.1 v2 2/3] migration: Remove RDMA protocol handling > > On Wed, May 29, 2024 at 12:33 PM Jinpu Wang > wrote: > > > > On Wed, May

RE: [PATCH-for-9.1 v2 2/3] migration: Remove RDMA protocol handling

2024-05-31 Thread Gonglei (Arei) via Devel
Hi, > -Original Message- > From: Peter Xu [mailto:pet...@redhat.com] > Sent: Tuesday, May 28, 2024 11:55 PM > > > > Exactly, not so compelling, as I did it first only on servers > > > > widely used for production in our data center. The network > > > > adapters are > > > > > > > >

RE: [PATCH-for-9.1 v2 2/3] migration: Remove RDMA protocol handling

2024-05-31 Thread Gonglei (Arei) via Devel
Hi Peter, > -Original Message- > From: Peter Xu [mailto:pet...@redhat.com] > Sent: Wednesday, May 22, 2024 6:15 AM > To: Yu Zhang > Cc: Michael Galaxy ; Jinpu Wang > ; Elmar Gerdes ; > zhengchuan ; Gonglei (Arei) > ; Daniel P. Berrangé ; > Markus Armbruster ; Zhijian Li (Fujitsu) > ;

RE: [PATCH-for-9.1 v2 2/3] migration: Remove RDMA protocol handling

2024-05-07 Thread Gonglei (Arei) via Devel
Hello, > -Original Message- > From: Peter Xu [mailto:pet...@redhat.com] > Sent: Monday, May 6, 2024 11:18 PM > To: Gonglei (Arei) > Cc: Daniel P. Berrangé ; Markus Armbruster > ; Michael Galaxy ; Yu Zhang > ; Zhijian Li (Fujitsu) ; Jinpu Wang > ; Elmar Gerdes ; > qemu-de...@nongnu.org;

RE: [PATCH-for-9.1 v2 2/3] migration: Remove RDMA protocol handling

2024-05-07 Thread Gonglei (Arei) via Devel
Hi, Peter RDMA features high bandwidth, low latency (in non-blocking lossless network), and direct remote memory access by bypassing the CPU (As you know, CPU resources are expensive for cloud vendors, which is one of the reasons why we introduced offload cards.), which TCP does not have.