All of lore.kernel.org
 help / color / mirror / Atom feed
* [PATCH v3 00/18] Support Multifd for RDMA migration
@ 2020-10-17  4:25 Chuan Zheng
  2020-10-17  4:25 ` [PATCH v3 01/18] migration/rdma: add the 'migrate_use_rdma_pin_all' function Chuan Zheng
                   ` (18 more replies)
  0 siblings, 19 replies; 31+ messages in thread
From: Chuan Zheng @ 2020-10-17  4:25 UTC (permalink / raw)
  To: quintela, dgilbert
  Cc: yubihong, zhang.zhanghailiang, fengzhimin1, qemu-devel,
	xiexiangyou, alex.chen, wanghao232

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
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



^ permalink raw reply	[flat|nested] 31+ messages in thread

end of thread, other threads:[~2020-12-18 20:03 UTC | newest]

Thread overview: 31+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-10-17  4:25 [PATCH v3 00/18] Support Multifd for RDMA migration Chuan Zheng
2020-10-17  4:25 ` [PATCH v3 01/18] migration/rdma: add the 'migrate_use_rdma_pin_all' function Chuan Zheng
2020-11-10 11:52   ` Dr. David Alan Gilbert
2020-10-17  4:25 ` [PATCH v3 02/18] migration/rdma: judge whether or not the RDMA is used for migration Chuan Zheng
2020-10-17  4:25 ` [PATCH v3 03/18] migration/rdma: create multifd_setup_ops for Tx/Rx thread Chuan Zheng
2020-11-10 12:11   ` Dr. David Alan Gilbert
2020-11-11  7:51     ` Zheng Chuan
2020-10-17  4:25 ` [PATCH v3 04/18] migration/rdma: add multifd_setup_ops for rdma Chuan Zheng
2020-11-10 12:30   ` Dr. David Alan Gilbert
2020-11-11  7:56     ` Zheng Chuan
2020-10-17  4:25 ` [PATCH v3 05/18] migration/rdma: do not need sync main " Chuan Zheng
2020-10-17  4:25 ` [PATCH v3 06/18] migration/rdma: export MultiFDSendParams/MultiFDRecvParams Chuan Zheng
2020-10-17  4:25 ` [PATCH v3 07/18] migration/rdma: add rdma field into multifd send/recv param Chuan Zheng
2020-10-17  4:25 ` [PATCH v3 08/18] migration/rdma: export getQIOChannel to get QIOchannel in rdma Chuan Zheng
2020-10-17  4:25 ` [PATCH v3 09/18] migration/rdma: add multifd_rdma_load_setup() to setup multifd rdma Chuan Zheng
2020-11-10 16:51   ` Dr. David Alan Gilbert
2020-10-17  4:25 ` [PATCH v3 10/18] migration/rdma: Create the multifd recv channels for RDMA Chuan Zheng
2020-10-17  4:25 ` [PATCH v3 11/18] migration/rdma: record host_port for multifd RDMA Chuan Zheng
2020-10-17  4:25 ` [PATCH v3 12/18] migration/rdma: Create the multifd send channels for RDMA Chuan Zheng
2020-10-17  4:25 ` [PATCH v3 13/18] migration/rdma: Add the function for dynamic page registration Chuan Zheng
2020-10-17  4:25 ` [PATCH v3 14/18] migration/rdma: register memory for multifd RDMA channels Chuan Zheng
2020-10-17  4:25 ` [PATCH v3 15/18] migration/rdma: only register the memory for multifd channels Chuan Zheng
2020-10-17  4:25 ` [PATCH v3 16/18] migration/rdma: add rdma_channel into Migrationstate field Chuan Zheng
2020-10-17  4:25 ` [PATCH v3 17/18] migration/rdma: send data for both rdma-pin-all and NOT rdma-pin-all mode Chuan Zheng
2020-10-17  4:25 ` [PATCH v3 18/18] migration/rdma: RDMA cleanup for multifd migration Chuan Zheng
2020-10-21  9:25 ` [PATCH v3 00/18] Support Multifd for RDMA migration Zhanghailiang
2020-10-21  9:33   ` Zheng Chuan
2020-10-23 19:02     ` Dr. David Alan Gilbert
2020-10-25  2:29       ` Zheng Chuan
2020-12-15  7:28         ` Zheng Chuan
2020-12-18 20:01           ` Dr. David Alan Gilbert

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.