https://community.hpe.com/t5/operating-system-linux/gfs2-filesystem-performance-with-rsync/m-p/5191305#M51096 I withdraw my post their is no issue with my GFS2 filesystem speed. Tue, 04 Aug 2009 18:31:32 GMT Sarcom IS 2009-08-04T18:31:32Z https://community.hpe.com/t5/operating-system-linux/gfs2-filesystem-performance-with-rsync/m-p/5191304#M51095 I am trying to rsync to a gfs2 filesystem and receieving very poor performance in return. I have a 2 node RHEL5.3 cluster where node1 has write access and node2 is read-only.<BR /><BR />On node1 there is an ext2 filesystem, an ext3 filesystem and the clustered gfs2 filesystem all with identical 37GB of data and I am testing to see how long it takes rsync to mirror the data locally when there are no changes.<BR /><BR />The mirror from ext2 to ext3 and vice versa takes 40 seconds or less. When trying to mirror from ext2 to GFS2 it takes an hour or more.<BR /><BR />With the mirror from ext2 to ext3 the cpu spikes to 100% and stays there for the 40 second duration. For ext2 to GFS2 the CPU for the rsync process is at 3% while the wait percentage is at 50% and the load is greater than 2. What is causing this slow performance? When I did the initial sync of the data when the GFS2 filesystem was empty I did not see slow performance in fact I thought it was sync'ing very fast and my performance issues were no more.<BR /><BR />Can anyone help me tune the GFS2 filesystem to increase the I/O throughput of the rysnc process? Tue, 04 Aug 2009 17:12:05 GMT https://community.hpe.com/t5/operating-system-linux/gfs2-filesystem-performance-with-rsync/m-p/5191304#M51095 Sarcom IS 2009-08-04T17:12:05Z https://community.hpe.com/t5/operating-system-linux/gfs2-filesystem-performance-with-rsync/m-p/5191305#M51096 I withdraw my post their is no issue with my GFS2 filesystem speed. Tue, 04 Aug 2009 18:31:32 GMT https://community.hpe.com/t5/operating-system-linux/gfs2-filesystem-performance-with-rsync/m-p/5191305#M51096 Sarcom IS 2009-08-04T18:31:32Z