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[Qemu-devel] [PATCH v7 0/8] Block Throttle Group Support
From: |
Alberto Garcia |
Subject: |
[Qemu-devel] [PATCH v7 0/8] Block Throttle Group Support |
Date: |
Fri, 10 Apr 2015 16:35:02 +0300 |
V7:
- Make block_set_io_throttle() keep a device in the same group if the
parameter is omitted, and rewrite the code a bit to make it clearer
and slightly more efficient.
- Update the documentation of block_set_io_throttle() to explain in
detail how it works.
- Improve the iotest 093 to test scenarios with several devices in the
same group.
- Update version number to 2.4 in the 'Since:' fields.
V6: https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg06036.html
- Use qemu_init_main_loop() in the throttling tests to make sure that
all BDS have an AioContext attached.
V5: https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg05990.html
- Fixed and expanded the tests. There's a new one that checks that
configuration changes affect the whole throttling group.
- Refactored the code a bit: new function schedule_next_request()
- any_timer_armed is now reset in throttle_group_config(), it was
causing qemu-iotest 093 to fail.
- Documentation improvements
V4: https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg05558.html
- All functions from the ThrottleGroup API now receive a BlockDriverState.
- The creation/destruction of ThrottleTimers is now handled internally.
- bdrv_io_limits_enable() no longer accepts NULL as a valid group name.
- No member of a group can access someone else's throttled_reqs queues
anymore.
- No member of a group can access someone else's timers unless they
have queued requests.
- After a timer is fired make sure that there was actually a request
in the queue, and schedule a new one otherwise.
- Protect bdrv_swap() by locking the throttling group.
- throttle_group_co_io_limits_intercept() is now marked as a coroutine
function.
- Documentation updates.
Regards,
Berto
Alberto Garcia (7):
throttle: Add throttle group infrastructure
throttle: Add throttle group infrastructure tests
throttle: Add throttle group support
throttle: acquire the ThrottleGroup lock in bdrv_swap()
throttle: add the name of the ThrottleGroup to BlockDeviceInfo
throttle: Update throttle infrastructure copyright
qemu-iotests: expand test 093 to support group throttling
BenoƮt Canet (1):
throttle: Extract timers from ThrottleState into a separate structure
block.c | 101 ++++-----
block/Makefile.objs | 1 +
block/qapi.c | 8 +-
block/throttle-groups.c | 489 ++++++++++++++++++++++++++++++++++++++++
blockdev.c | 38 +++-
hmp.c | 10 +-
include/block/block.h | 3 +-
include/block/block_int.h | 7 +-
include/block/throttle-groups.h | 46 ++++
include/qemu/throttle.h | 46 ++--
qapi/block-core.json | 29 ++-
qemu-options.hx | 1 +
qmp-commands.hx | 3 +-
tests/qemu-iotests/093 | 93 +++++---
tests/test-throttle.c | 161 +++++++++----
util/throttle.c | 81 ++++---
16 files changed, 919 insertions(+), 198 deletions(-)
create mode 100644 block/throttle-groups.c
create mode 100644 include/block/throttle-groups.h
--
2.1.4
- [Qemu-devel] [PATCH v7 0/8] Block Throttle Group Support,
Alberto Garcia <=
- [Qemu-devel] [PATCH 6/8] throttle: add the name of the ThrottleGroup to BlockDeviceInfo, Alberto Garcia, 2015/04/10
- [Qemu-devel] [PATCH 7/8] throttle: Update throttle infrastructure copyright, Alberto Garcia, 2015/04/10
- [Qemu-devel] [PATCH 3/8] throttle: Add throttle group infrastructure tests, Alberto Garcia, 2015/04/10
- [Qemu-devel] [PATCH 8/8] qemu-iotests: expand test 093 to support group throttling, Alberto Garcia, 2015/04/10
- [Qemu-devel] [PATCH 2/8] throttle: Add throttle group infrastructure, Alberto Garcia, 2015/04/10
- [Qemu-devel] [PATCH 5/8] throttle: acquire the ThrottleGroup lock in bdrv_swap(), Alberto Garcia, 2015/04/10
- [Qemu-devel] [PATCH 4/8] throttle: Add throttle group support, Alberto Garcia, 2015/04/10
- [Qemu-devel] [PATCH 1/8] throttle: Extract timers from ThrottleState into a separate structure, Alberto Garcia, 2015/04/10