728f20e8f4
Introduce an I/O semaphore to limit the number of concurrent disk-IO-intensive operations. This could reduce disk contention from image operations like image download, image format conversion, snapshot extraction, etc. The new config option max_concurrent_disk_ops can be set in nova.conf per compute host and would be virt-driver-agnostic. It is default to 0 which means no limit. blueprint: io-semaphore-for-concurrent-disk-ops Change-Id: I897999e8a4601694213f068367eae9608cdc7bbb Signed-off-by: Jack Ding <jack.ding@windriver.com>
10 lines
402 B
YAML
10 lines
402 B
YAML
---
|
|
features:
|
|
- |
|
|
Introduced a new config option ``[compute]/max_concurrent_disk_ops`` to
|
|
reduce disk contention by specifying the maximum number of concurrent
|
|
disk-IO-intensive operations per compute service. This would include
|
|
operations such as image download, image format conversion, snapshot
|
|
extraction, etc.
|
|
The default value is 0, which means that there is no limit.
|