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[Qemu-devel] [PATCH v3 0/6] Enable postcopy RDMA live migration
From: |
Lidong Chen |
Subject: |
[Qemu-devel] [PATCH v3 0/6] Enable postcopy RDMA live migration |
Date: |
Sat, 5 May 2018 22:35:30 +0800 |
The RDMA QIOChannel does not support bi-directional communication, so when RDMA
live migration with postcopy enabled, the source qemu return path get qemu file
error.
These patches implement bi-directional communication for RDMA QIOChannel and
disable the RDMA WRITE during the postcopy phase.
This patch just make postcopy works, and will improve performance later.
[v3]
- add a mutex in QEMUFile struct to avoid concurrent channel close (Daniel)
- destroy the mutex before free QEMUFile (David)
- use rdmain and rmdaout instead of rdma->return_path (Daniel)
[v2]
- does not update bytes_xfer when disable RDMA WRITE (David)
- implement bi-directional communication for RDMA QIOChannel (Daniel)
Lidong Chen (6):
migration: disable RDMA WRITE after postcopy started
migration: create a dedicated connection for rdma return path
migration: remove unnecessary variables len in QIOChannelRDMA
migration: avoid concurrent invoke channel_close by different threads
migration: implement bi-directional RDMA QIOChannel
migration: Stop rdma yielding during incoming postcopy
migration/colo.c | 2 +
migration/migration.c | 2 +
migration/postcopy-ram.c | 2 +
migration/qemu-file.c | 13 +-
migration/ram.c | 4 +
migration/rdma.c | 321 +++++++++++++++++++++++++++++++++++++++++------
migration/savevm.c | 3 +
7 files changed, 307 insertions(+), 40 deletions(-)
--
1.8.3.1
- [Qemu-devel] [PATCH v3 0/6] Enable postcopy RDMA live migration,
Lidong Chen <=
- [Qemu-devel] [PATCH v3 1/6] migration: disable RDMA WRITE after postcopy started, Lidong Chen, 2018/05/05
- [Qemu-devel] [PATCH v3 2/6] migration: create a dedicated connection for rdma return path, Lidong Chen, 2018/05/05
- [Qemu-devel] [PATCH v3 3/6] migration: remove unnecessary variables len in QIOChannelRDMA, Lidong Chen, 2018/05/05
- [Qemu-devel] [PATCH v3 4/6] migration: avoid concurrent invoke channel_close by different threads, Lidong Chen, 2018/05/05
- [Qemu-devel] [PATCH v3 6/6] migration: Stop rdma yielding during incoming postcopy, Lidong Chen, 2018/05/05
- [Qemu-devel] [PATCH v3 5/6] migration: implement bi-directional RDMA QIOChannel, Lidong Chen, 2018/05/05