On Wed, 2 Dec 2009, Bruno Wolff III wrote: > On Wed, Dec 02, 2009 at 17:58:24 -0500, > Seth Vidal <skvidal@xxxxxxxxxxxxxxxxx> wrote: > > > > I tested it on our backend to be sure. getting the complete pkglist > > goes from taking 5 minutes to take 30s. > > > > yes, I said 5 minutes. > > Have you tried any of the tunning knobs to have the directory cache be > alotted more space or given higher priority? For example: > > vfs_cache_pressure > ------------------ > > Controls the tendency of the kernel to reclaim the memory which is used for > caching of directory and inode objects. > > At the default value of vfs_cache_pressure=100 the kernel will attempt to > reclaim dentries and inodes at a "fair" rate with respect to pagecache and > swapcache reclaim. Decreasing vfs_cache_pressure causes the kernel to prefer > to retain dentry and inode caches. Increasing vfs_cache_pressure beyond 100 > causes the kernel to prefer to reclaim dentries and inodes. > We have experimented with this for the purposes of rsync on our mirrors but haven't experimented for this specific issue. -Mike -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
