openstack/cinder
Code Issues Proposed changes

Support Volume Num Weighter

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Currently cinder support choosing volume backend according to
free_capacity and allocated_capacity. Volume Num Weighter is
that scheduler could choose volume backend based on volume number
in volume backend, which could provide another mean to help
improve volume-backends' IO balance and volumes' IO performance,
see details in ref [1] and [2].

blueprint support-volume-num-weighter

Ref:
[1]https://blueprints.launchpad.net/cinder/+spec/support-volume-num-weighter
[2]https://review.openstack.org/#/c/99683/

Change-Id: Id9275ed954f1b35ee8d7bee0f0b61cc3a7c48f63
This commit is contained in:
ling-yun
2014-06-25 10:40:38 +08:00
parent d63f4beda8
commit 50dc292764
6 changed files with 188 additions and 12 deletions
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1
setup.cfg
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@@ -48,6 +48,7 @@ cinder.scheduler.weights =
AllocatedCapacityWeigher = cinder.scheduler.weights.capacity:AllocatedCapacityWeigher
CapacityWeigher = cinder.scheduler.weights.capacity:CapacityWeigher
ChanceWeigher = cinder.scheduler.weights.chance:ChanceWeigher
VolumeNumberWeigher = cinder.scheduler.weights.volume_number:VolumeNumberWeigher
console_scripts =
cinder-rootwrap = oslo.rootwrap.cmd:main
# These are for backwards compat with Havana notification_driver configuration values