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https://ovirt-jira.atlassian.net/browse/OVIRT-910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=23920#comment-23920
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Evgheni Dereveanchin commented on OVIRT-910:
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[[email protected]] some logs would be helpful :)

Older slaves with local disk hook use ext4 on the secondary disk while newer 
ones write to rootfs which is XFS. I can try launching a dozen ext4 VMs so that 
we can compare performance.

> mock_runner.sh seems to run slower on newer slaves
> --------------------------------------------------
>
>                 Key: OVIRT-910
>                 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-910
>             Project: oVirt - virtualization made easy
>          Issue Type: Improvement
>          Components: Jenkins
>            Reporter: Barak Korren
>            Assignee: infra
>
> After implementing speedup improvements for mock_runner.sh (Specifically 
> enabling it to deploy the chroot by extracting a tarball as opposed to 
> installing it with yum every time), I started monitoring run times for vdsm 
> check_patch jobs.
> I've noticed that jobs that are running on the old slaves (fc24-vm*) seem to 
> initialize mock faster then ones running on new slaves (vm*) - 17seconds vs 
> 57 seconds respectively.
> I suspect this may be because the older slaves have a different FS mounted on 
> /var/cache/mock



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