Paul, what was your rsync time with write-behind loaded on the client side? avati On 9/8/07, Paul Jochum <jochum@xxxxxxxxxxxxxxxxxx> wrote: > > Hi All: > > Time to move from functionality (i.e. it is working), to performance > (need to speed it up now). > > Basically, I have a one server that can run NFS and gluster, and one > client that can access that server (either NFS or Glusterfs). In a > simple set of tests (time of rsyncs, and then time of rm's), I see the > following: > > For NFS: rsync time is 0m52.304s and rm time is 0m12.615s > > For Glusterfs: rsync time is 1m29.312s and rm time is 0m33.901s > (these were the fastest gluster times, slowest for the rsync was > 5m23.9s, depending on the perfomance translators I used) > > So, how do I improve Gluster, which is running about twice as slow as NFS? > > Here is my background info > > *Gluster Server:* > No messages in the log files (either gluster's log file or > /var/log/messages) > > glusterfsd -V > glusterfs 1.3.1 > > spec file: > volume brick > type storage/posix > option directory /nfs/gluster > end-volume > volume server > type protocol/server > option transport-type tcp/server > subvolumes brick > option auth.ip.brick.allow * > end-volume > > machine's OS = Scientific Linux SL release 3.0.8 (SL) > 2.4.21-47.0.1.ELsmp #1 SMP Thu Oct 19 10:38:33 CDT 2006 x86_64 x86_64 > x86_64 GNU/Linux > > Gluster Client: > No messages in the log files (either gluster's log file or > /var/log/messages) > > glusterfs -V > glusterfs 1.3.1 > > fuse version is fuse-2.7.0-glfs3 > > spec file: > volume client > type protocol/client > option transport-type tcp/client # for TCP/IP transport > option remote-host 135.1.29.152 # IP address of the remote brick > option remote-subvolume brick # name of the remote volume > end-volume > #### Add readahead feature > volume readahead > type performance/read-ahead > option page-size 128KB # unit in bytes > subvolumes client > end-volume > ### Add IO-Threads feature > volume iothreads > type performance/io-threads > option thread-count 4 # deault is 1 > option cache-size 64MB > subvolumes readahead > end-volume > > machine's OS = CentOS release 5 (Final) > 2.6.18-2.6.18-8.1.8.el5.028stab039.1.prj4 #1 SMP Mon Aug 13 16:31:27 CDT > 2007 i686 athlon i386 GNU/Linux > > thanks, > > Paul Jochum > > > _______________________________________________ > Gluster-devel mailing list > Gluster-devel@xxxxxxxxxx > http://lists.nongnu.org/mailman/listinfo/gluster-devel > -- It always takes longer than you expect, even when you take into account Hofstadter's Law. -- Hofstadter's Law
