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[Qemu-devel] [PATCH v3 0/8] WIP: Multifd compression support
From: |
Juan Quintela |
Subject: |
[Qemu-devel] [PATCH v3 0/8] WIP: Multifd compression support |
Date: |
Wed, 15 May 2019 14:15:36 +0200 |
v3:
- improve the code
- address David and Markus comments
- make compression code into methods
so we can add any other method ading just three functions
Please review, as far as I know everything is ok now.
Todo: Add zstd support
v2:
- improve the code left and right
- Split better the zlib code
- rename everything to v4.1
- Add tests for multifd-compress zlib
- Parameter is now an enum (soon will see sztd)
ToDo:
- Make operations for diferent methods:
* multifd_prepare_send_none/zlib
* multifd_send_none/zlib
* multifd_recv_none/zlib
- Use the MULTIFD_FLAG_ZLIB (it is unused so far).
Please review and comment.
v1:
This series create compression code on top of multifd. It is still
WIP, but it is already:
- faster that current compression code
- it does the minimum amount of copies possible
- we allow support for other compression codes
- it pass the multifd test sent in my previous series
Test for existing code didn't work because code is too slow, I need to
make downtime 10 times bigger to make it to converge on my test
machine. This code works with same limits that multifd no-
ToDo:
- move printf's to traces
- move code to a struct instead of if (zlib) inside the main threads.
- improve error handling.
Please, review and coment.
Juan Quintela (8):
migration: fix multifd_recv event typo
migration-test: rename parameter to parameter_int
tests: Add migration multifd test
migration-test: introduce functions to handle string parameters
migration: Add multifd-compress parameter
migration: Make none operations into its own structure
multifd: Add zlib compression support
multifd: rest of zlib compression
hmp.c | 17 +++
hw/core/qdev-properties.c | 13 +++
include/hw/qdev-properties.h | 1 +
migration/migration.c | 25 +++++
migration/migration.h | 1 +
migration/ram.c | 203 ++++++++++++++++++++++++++++++++++-
migration/trace-events | 2 +-
qapi/migration.json | 30 +++++-
tests/migration-test.c | 147 ++++++++++++++++++++-----
9 files changed, 406 insertions(+), 33 deletions(-)
--
2.21.0
- [Qemu-devel] [PATCH v3 0/8] WIP: Multifd compression support,
Juan Quintela <=
- [Qemu-devel] [PATCH v3 1/8] migration: fix multifd_recv event typo, Juan Quintela, 2019/05/15
- [Qemu-devel] [PATCH v3 2/8] migration-test: rename parameter to parameter_int, Juan Quintela, 2019/05/15
- [Qemu-devel] [PATCH v3 3/8] tests: Add migration multifd test, Juan Quintela, 2019/05/15
- [Qemu-devel] [PATCH v3 4/8] migration-test: introduce functions to handle string parameters, Juan Quintela, 2019/05/15
- [Qemu-devel] [PATCH v3 5/8] migration: Add multifd-compress parameter, Juan Quintela, 2019/05/15