openstack/openstack
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* Update project-config from branch 'master'
  - Merge "Increase nodepool image journal size"
  - Increase nodepool image journal size
    
    DIB uses 64MB as the default ext4 journal size, which is far below
    the mkfs.ext4 default for the 80GB disks that nodepool instances
    use. This change will increase the journal size to 512MB which is
    the default size for ext4 filesystems built on disks 64-128GB in
    size.
    
    The relevant mkfs source where default journal sizes are calculated
    is available here:
    https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git/tree/lib/ext2fs/mkjournal.c#333
    
    http://www.linux-mag.com/id/7666/ shows that an undersized journal
    can have a large impact on file operations when dealing with lots
    of small files. With larger files, there is negligible performance
    impact. So worst case this change may not improve performance, but
    with the number of jobs using small python source files and small
    .git repo files, this should cause a marginal performance increase
    for the nodepool use case.
    
    Change-Id: I07a67e2e51d8d139e27da83aa16899a11d8b3f34
This commit is contained in:
Zuul 2019-05-21 23:17:22 +00:00 committed by Gerrit Code Review
parent 76c5a2039f
commit 4925db1eda
1 changed files with 1 additions and 1 deletions
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2
project-config

@ -1 +1 @@
Subproject commit 6916aa8d2dd1cecd96f75b90ba8435b43f975748
Subproject commit 2163465968f52ad1cdb8e98ed8e50e9c6d7421d0