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Disable RBD caching by default 

Results in a massive (~2x) performance boost for random block I/O inside
VMs, and thus a worthwhile default change.
This commit is contained in:
Joshua Boniface 2022-12-05 17:56:59 -05:00
parent 8135426973
commit 6d7730ab52
1 changed files with 1 additions and 1 deletions
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api-daemon/pvcapid/libvirt_schema.py
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@ -100,7 +100,7 @@ devices_scsi_controller = """ <controller type='scsi' index='0' model='virtio
# * vm_name
# * disk_id
devices_disk_header = """ <disk type='network' device='disk'>
<driver name='qemu' discard='unmap'/>
<driver name='qemu' discard='unmap' cache='none'/>
<target dev='{disk_id}' bus='scsi'/>
<auth username='libvirt'>
<secret type='ceph' uuid='{ceph_storage_secret}'/>