Hi, Its not correct to compare performance of glusterfs with local file system, since with glusterfs (as with FUSE based filesystems), the context switches (b/w user and kernel spaces) can be costly. Better comparision would be to compare glusterfs with NFS (at least for the configuration you've posted here). Can you try comparing glusterfs performance with NFS? A more realistic comparision would be with configuration involving network. regards, On Tue, Jan 19, 2010 at 9:30 PM, Jiann-Ming Su <sujiannming at gmail.com>wrote: > I ran a simple bonnie++ benchmark on 3.0.0. The read performance > through FUSE is horrible. Are there some parameters that can be tuned > to improve read performance? > > GlusterFS: > > Version 1.96 ------Sequential Output------ --Sequential Input- > --Random- > Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- > --Seeks-- > Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec > %CP > localhost.loc 2000M 4 31 23901 30 1632 13 3 33 6289 11 68.9 > 8 > Latency 7834ms 140ms 340ms 7767ms 543ms > 757ms > Version 1.96 ------Sequential Create------ --------Random > Create-------- > localhost.localdoma -Create-- --Read--- -Delete-- -Create-- --Read--- > -Delete-- > files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec > %CP > 16 148 14 1365 27 234 18 123 16 350 18 134 > 10 > Latency 123ms 22783us 123ms 297ms 19895us > 157ms > > > Locate ext3 filesystem: > > Version 1.96 ------Sequential Output------ --Sequential Input- > --Random- > Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- > --Seeks-- > Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec > %CP > localhost.loc 2000M 74 99 39432 12 27308 10 836 99 65104 9 351.5 > 11 > Latency 179ms 1207ms 429ms 109ms 109ms > 215ms > Version 1.96 ------Sequential Create------ --------Random > Create-------- > localhost.localdoma -Create-- --Read--- -Delete-- -Create-- --Read--- > -Delete-- > files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec > %CP > 16 23991 81 +++++ +++ +++++ +++ 17007 57 +++++ +++ +++++ > +++ > Latency 1276us 1189us 787us 1183us 438us > 2813us > > > -- > Jiann-Ming Su > "I have to decide between two equally frightening options. > If I wanted to do that, I'd vote." --Duckman > "The system's broke, Hank. The election baby has peed in > the bath water. You got to throw 'em both out." --Dale Gribble > "Those who vote decide nothing. > Those who count the votes decide everything.? --Joseph Stalin > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users > -- Raghavendra G
