Just to follow up, my speeds read and write speeds have not balanced out yet. These are the settings on my NFS gluster system: # gluster volume info Volume Name: datastore Type: Replicate Status: Started Number of Bricks: 1 Transport-type: tcp Bricks: Brick1: 10.1.40.2:/nfs/disk3 Options Reconfigured: performance.read-ahead: off performance.io-cache: on performance.write-behind-window-size: 4MB performance.io-thread-count: 64 performance.cache-size: 134217728 nfs.trusted-sync: on nfs.port: 2049 ----- Original Message ----- > Hi, > > I'm testing gluster/nfs for replacement of an existing DRBD/iSCSI > system. > > Speed tests show gluster NFS to be pretty close to iSCSI, but I have > some questions. > > If I do a sequential write of data, I get ~118 MB/s. A sequential > read of data gets about 65 MB/s. > > If I do a sequential read and write at the same time, write speed > drops to ~100 MB/s while read speed drops to about 10 MB/s. > > Does anyone know why this occurs, and is there anything I can do to > speed up the read speeds, maybe make reads and writes a bit more > balanced? > > Gerald > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users >
