Dear All, I am benchmarking NFS and GlusterFS . I running Iozone in multi thread mode .from the test conclued that GlusterFS performs better then NFS in single server and single client at file size 100MB. Any commant and Idea . Is it correct? .Here I am using file size 100MB and 128 KB record size .In 100 MB file size GlusterFS performs better then NFS . but when I am testing 128 KB file size and 4KB record size ,in this case NFS performs better then GlusterFS .what is the reson for that? GlusterFS will perform better only in case of large file size ? =============================================== NFS Performance in Iozone Thread mode: [root at localhost nfs]# iozone -R -t 5 -r 128K -s 100M +-n -i 0 -i 1 Iozone: Performance Test of File I/O Version $Revision: 3.239 $ Compiled for 32 bit mode. Build: linux Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins Al Slater, Scott Rhine, Mike Wisner, Ken Goss Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR, Randy Dunlap, Mark Montague, Dan Million, Jean-Marc Zucconi, Jeff Blomberg, Erik Habbinga, Kris Strecker, Walter Wong. Run began: Mon Jan 12 20:29:37 2009 Excel chart generation enabled Record Size 128 KB File size set to 102400 KB Command line used: iozone -R -t 5 -r 128K -s 100M -i 0 -i 1 +-n Output is in Kbytes/sec Time Resolution = 0.000001 seconds. Processor cache size set to 1024 Kbytes. Processor cache line size set to 32 bytes. File stride size set to 17 * record size. Throughput test with 5 processes Each process writes a 102400 Kbyte file in 128 Kbyte records Children see throughput for 5 initial writers = 9269.31 KB/sec Parent sees throughput for 5 initial writers = 8506.71 KB/sec Min throughput per process = 1802.63 KB/sec Max throughput per process = 1914.05 KB/sec Avg throughput per process = 1853.86 KB/sec Min xfer = 96384.00 KB Children see throughput for 5 rewriters = 7869.36 KB/sec Parent sees throughput for 5 rewriters = 7533.62 KB/sec Min throughput per process = 1499.05 KB/sec Max throughput per process = 1650.54 KB/sec Avg throughput per process = 1573.87 KB/sec Min xfer = 93312.00 KB Children see throughput for 5 readers = 8779.71 KB/sec Parent sees throughput for 5 readers = 8753.18 KB/sec Min throughput per process = 1741.74 KB/sec Max throughput per process = 1781.11 KB/sec Avg throughput per process = 1755.94 KB/sec Min xfer = 100608.00 KB Children see throughput for 5 re-readers = 8785.78 KB/sec Parent sees throughput for 5 re-readers = 8765.13 KB/sec Min throughput per process = 1732.58 KB/sec Max throughput per process = 1788.77 KB/sec Avg throughput per process = 1757.16 KB/sec Min xfer = 99584.00 KB "Throughput report Y-axis is type of test X-axis is number of processes" "Record size = 128 Kbytes " "Output is in Kbytes/sec" " Initial write " 9269.31 " Rewrite " 7869.36 " Read " 8779.71 " Re-read " 8785.78 iozone test complete. ====================================================== GlusterFS performance in Iozone Tread mode : [root at localhost glusterfs]# iozone -R -t 5 -r 128K -s 100M +-n -i 0 -i 1 Iozone: Performance Test of File I/O Version $Revision: 3.239 $ Compiled for 32 bit mode. Build: linux Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins Al Slater, Scott Rhine, Mike Wisner, Ken Goss Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR, Randy Dunlap, Mark Montague, Dan Million, Jean-Marc Zucconi, Jeff Blomberg, Erik Habbinga, Kris Strecker, Walter Wong. Run began: Mon Jan 12 20:35:56 2009 Excel chart generation enabled Record Size 128 KB File size set to 102400 KB Command line used: iozone -R -t 5 -r 128K -s 100M -i 0 -i 1 +-n Output is in Kbytes/sec Time Resolution = 0.000001 seconds. Processor cache size set to 1024 Kbytes. Processor cache line size set to 32 bytes. File stride size set to 17 * record size. Throughput test with 5 processes Each process writes a 102400 Kbyte file in 128 Kbyte records Children see throughput for 5 initial writers = 11305.49 KB/sec Parent sees throughput for 5 initial writers = 10658.86 KB/sec Min throughput per process = 2113.47 KB/sec Max throughput per process = 2320.99 KB/sec Avg throughput per process = 2261.10 KB/sec Min xfer = 93312.00 KB Children see throughput for 5 rewriters = 10245.67 KB/sec Parent sees throughput for 5 rewriters = 10052.28 KB/sec Min throughput per process = 1984.79 KB/sec Max throughput per process = 2150.17 KB/sec Avg throughput per process = 2049.13 KB/sec Min xfer = 94592.00 KB Children see throughput for 5 readers = 10172.49 KB/sec Parent sees throughput for 5 readers = 10124.65 KB/sec Min throughput per process = 1128.39 KB/sec Max throughput per process = 2271.28 KB/sec Avg throughput per process = 2034.50 KB/sec Min xfer = 51072.00 KB Children see throughput for 5 re-readers = 10253.22 KB/sec Parent sees throughput for 5 re-readers = 10193.55 KB/sec Min throughput per process = 1137.78 KB/sec Max throughput per process = 2290.00 KB/sec Avg throughput per process = 2050.64 KB/sec Min xfer = 51072.00 KB "Throughput report Y-axis is type of test X-axis is number of processes" "Record size = 128 Kbytes " "Output is in Kbytes/sec" " Initial write " 11305.49 " Rewrite " 10245.67 " Read " 10172.49 " Re-read " 10253.22 iozone test complete. Thanks for your time . Thanks L.Mohan -------------- next part -------------- An HTML attachment was scrubbed... URL: http://zresearch.com/pipermail/gluster-users/attachments/20090112/9b76fed7/attachment.htm