Philipp Wehrheim wrote: > Hey, > > im trying to get fscache to work for a nfs share > but for some reasons fscache is not active and the cache-dir > is not beeing used. > > This is what I did so far: > > fetch the git tree, reset to fscache-commit version (44) and apply patches. > Linux NFS-Cache 2.6.29-rc1-00534-g7cb36b6-dirty #1 SMP Mon Feb 2 14:42:32 CET 2009 i686 QEMU Virtual CPU version 0.9.1 GenuineIntel > > > I compiled the nfs-utils by miself and tryed the once provided via rpm > > mount.nfs (linux nfs-utils 1.0.9) (from rpm) > mount.nfs (linux nfs-utils 1.0.11) (from src) A little old but should work... nfs-utils 1.1.x release _may_ work a bit better... > > build cachefilesd (ver. 0.9) This is good but there is the rpm/src I've been using is at: http://koji.fedoraproject.org/koji/buildinfo?buildID=81367 > > mount: > /dev/hda3 on / type ext3 (rw,noatime,user_xattr) > 1.2.3.4:/hdisk3 on /mnt/nfs type nfs (rw,bg,intr,soft,fsc,nolock,tcp,addr=1.2.3.4) > ^^^ Yes... this is key... you know that the mount flag it taking effect. Note: Not that it has anything to do this but... mount things with 'soft' in not a good idea > /dev/loop0 on /var/fscache type ext3 (rw,loop=/dev/loop1,user_xattr) having 'user_xattr' set on the ext3 filesystem is another key thing... > > when cachefsd is started: > > Feb 3 11:27:51 NFS-Cache cachefilesd[4448]: About to bind cache > Feb 3 11:27:51 NFS-Cache FS-Cache: Cache "mycache" added (type cachefiles) > Feb 3 11:27:51 NFS-Cache CacheFiles: File cache on loop1 registered > Feb 3 11:27:51 NFS-Cache cachefilesd[4448]: Bound cache > Feb 3 11:27:51 NFS-Cache cachefilesd[4449]: Daemon Started > Feb 3 11:27:51 NFS-Cache cachefilesd[4449]: --> build_cull_table({}) > Feb 3 11:27:51 NFS-Cache cachefilesd[4449]: dir_read_complete: u=2 e=0 > Feb 3 11:27:51 NFS-Cache cachefilesd[4449]: Scan complete > Feb 3 11:27:51 NFS-Cache cachefilesd[4449]: <-- build_cull_table({}) > Feb 3 11:28:21 NFS-Cache cachefilesd[4449]: Refilling cull table > Feb 3 11:28:21 NFS-Cache cachefilesd[4449]: --> build_cull_table({}) Looks reasonable... the daemon is finding the cache. > > So to me it looks like FSC is not used even through the mount option > is shown (by the mount cmd). > > Can somebody give me a hint how to track this problem. So how are testing.... I basically mount the file system, read in a file that 600mg to 1 gig file, unmount the filesystem and then reread the file.... watching to see if there is any network activity Another good way to monitor things is with: watch -n0 /proc/fs/fscache/stats as also use 'df -h /var/fscahe' to see if the file system increase in size... steved. -- Linux-cachefs mailing list Linux-cachefs@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cachefs
