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Re: [PATCH v3 00/18] Support Multifd for RDMA migration
From: |
Zheng Chuan |
Subject: |
Re: [PATCH v3 00/18] Support Multifd for RDMA migration |
Date: |
Wed, 21 Oct 2020 17:33:28 +0800 |
User-agent: |
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 |
On 2020/10/21 17:25, Zhanghailiang wrote:
> Hi zhengchuan,
>
>> -----Original Message-----
>> From: zhengchuan
>> Sent: Saturday, October 17, 2020 12:26 PM
>> To: quintela@redhat.com; dgilbert@redhat.com
>> Cc: Zhanghailiang <zhang.zhanghailiang@huawei.com>; Chenzhendong (alex)
>> <alex.chen@huawei.com>; Xiexiangyou <xiexiangyou@huawei.com>; wanghao
>> (O) <wanghao232@huawei.com>; yubihong <yubihong@huawei.com>;
>> fengzhimin1@huawei.com; qemu-devel@nongnu.org
>> Subject: [PATCH v3 00/18] Support Multifd for RDMA migration
>>
>> Now I continue to support multifd for RDMA migration based on my colleague
>> zhiming's work:)
>>
>> The previous RFC patches is listed below:
>> v1:
>> https://www.mail-archive.com/qemu-devel@nongnu.org/msg669455.html
>> v2:
>> https://www.mail-archive.com/qemu-devel@nongnu.org/msg679188.html
>>
>> As descried in previous RFC, the RDMA bandwidth is not fully utilized for
>> over
>> 25Gigabit NIC because of single channel for RDMA migration.
>> This patch series is going to support multifd for RDMA migration based on
>> multifd
>> framework.
>>
>> Comparsion is between origion and multifd RDMA migration is re-tested for v3.
>> The VM specifications for migration are as follows:
>> - VM use 4k page;
>> - the number of VCPU is 4;
>> - the total memory is 16Gigabit;
>> - use 'mempress' tool to pressurize VM(mempress 8000 500);
>> - use 25Gigabit network card to migrate;
>>
>> For origin RDMA and MultiRDMA migration, the total migration times of VM are
>> as follows:
>> +++++++++++++++++++++++++++++++++++++++++++++++++
>> | | NOT rdma-pin-all | rdma-pin-all |
>> +++++++++++++++++++++++++++++++++++++++++++++++++
>> | origin RDMA | 26 s | 29 s |
>> -------------------------------------------------
>> | MultiRDMA | 16 s | 17 s |
>> +++++++++++++++++++++++++++++++++++++++++++++++++
>>
>> Test the multifd RDMA migration like this:
>> virsh migrate --live --multiFd --migrateuri
>
> There is no option '--multiFd' for virsh commands, It seems that, we added
> this private option for internal usage.
> It's better to provide testing method by using qemu commands.
>
>
Hi, Hailiang
Yes, it should be, will update in V4.
Also, Ping.
Dave, Juan.
Any suggestion and comment about this series? Hope this feature could catch up
with qemu 5.2.
> Thanks.
>
>> rdma://192.168.1.100 [VM] --listen-address 0.0.0.0
>> qemu+tcp://192.168.1.100/system --verbose
>>
>> v2 -> v3:
>> create multifd ops for both tcp and rdma
>> do not export rdma to avoid multifd code in mess
>> fix build issue for non-rdma
>> fix some codestyle and buggy code
>>
>> Chuan Zheng (18):
>> migration/rdma: add the 'migrate_use_rdma_pin_all' function
>> migration/rdma: judge whether or not the RDMA is used for migration
>> migration/rdma: create multifd_setup_ops for Tx/Rx thread
>> migration/rdma: add multifd_setup_ops for rdma
>> migration/rdma: do not need sync main for rdma
>> migration/rdma: export MultiFDSendParams/MultiFDRecvParams
>> migration/rdma: add rdma field into multifd send/recv param
>> migration/rdma: export getQIOChannel to get QIOchannel in rdma
>> migration/rdma: add multifd_rdma_load_setup() to setup multifd rdma
>> migration/rdma: Create the multifd recv channels for RDMA
>> migration/rdma: record host_port for multifd RDMA
>> migration/rdma: Create the multifd send channels for RDMA
>> migration/rdma: Add the function for dynamic page registration
>> migration/rdma: register memory for multifd RDMA channels
>> migration/rdma: only register the memory for multifd channels
>> migration/rdma: add rdma_channel into Migrationstate field
>> migration/rdma: send data for both rdma-pin-all and NOT rdma-pin-all
>> mode
>> migration/rdma: RDMA cleanup for multifd migration
>>
>> migration/migration.c | 24 +++
>> migration/migration.h | 11 ++
>> migration/multifd.c | 97 +++++++++-
>> migration/multifd.h | 24 +++
>> migration/qemu-file.c | 5 +
>> migration/qemu-file.h | 1 +
>> migration/rdma.c | 503
>> +++++++++++++++++++++++++++++++++++++++++++++++++-
>> 7 files changed, 653 insertions(+), 12 deletions(-)
>>
>> --
>> 1.8.3.1
>
> .
>
--
Regards.
Chuan
- [PATCH v3 17/18] migration/rdma: send data for both rdma-pin-all and NOT rdma-pin-all mode, (continued)
- [PATCH v3 17/18] migration/rdma: send data for both rdma-pin-all and NOT rdma-pin-all mode, Chuan Zheng, 2020/10/17
- [PATCH v3 18/18] migration/rdma: RDMA cleanup for multifd migration, Chuan Zheng, 2020/10/17
- [PATCH v3 14/18] migration/rdma: register memory for multifd RDMA channels, Chuan Zheng, 2020/10/17
- [PATCH v3 13/18] migration/rdma: Add the function for dynamic page registration, Chuan Zheng, 2020/10/17
- [PATCH v3 12/18] migration/rdma: Create the multifd send channels for RDMA, Chuan Zheng, 2020/10/17
- [PATCH v3 16/18] migration/rdma: add rdma_channel into Migrationstate field, Chuan Zheng, 2020/10/17
- [PATCH v3 11/18] migration/rdma: record host_port for multifd RDMA, Chuan Zheng, 2020/10/17
- [PATCH v3 15/18] migration/rdma: only register the memory for multifd channels, Chuan Zheng, 2020/10/17
- [PATCH v3 10/18] migration/rdma: Create the multifd recv channels for RDMA, Chuan Zheng, 2020/10/17
- RE: [PATCH v3 00/18] Support Multifd for RDMA migration, Zhanghailiang, 2020/10/21
- Re: [PATCH v3 00/18] Support Multifd for RDMA migration,
Zheng Chuan <=