[root@localhost mnt]# cd xfs && iozone -s 1g -I -i 0 -i 1 -i 2 -r 16 -t 16 -F file1 file2 file3 file4 file5 file6 file7 file8 file9 file10 file11 file12 file13 file14 fil e15 file16 Iozone: Performance Test of File I/O Version $Revision: 3.326 $ Compiled for 64 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, Gavin Brebner, Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root. Run began: Fri Oct 23 19:33:16 2009 File size set to 1048576 KB O_DIRECT feature enabled Record Size 16 KB Command line used: iozone -s 1g -I -i 0 -i 1 -i 2 -r 16 -t 16 -F file1 file2 file3 file4 file5 file6 file7 file8 file9 file10 file11 file12 file13 file14 file15 file16 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 16 processes Each process writes a 1048576 Kbyte file in 16 Kbyte records Children see throughput for 16 initial writers = 5567.56 KB/sec Parent sees throughput for 16 initial writers = 5566.76 KB/sec Min throughput per process = 347.95 KB/sec Max throughput per process = 348.02 KB/sec Avg throughput per process = 347.97 KB/sec Min xfer = 1048368.00 KB Children see throughput for 16 rewriters = 5839.41 KB/sec Parent sees throughput for 16 rewriters = 5839.37 KB/sec Min throughput per process = 364.96 KB/sec Max throughput per process = 364.97 KB/sec Avg throughput per process = 364.96 KB/sec Min xfer = 1048560.00 KB Children see throughput for 16 readers = 30784.12 KB/sec Parent sees throughput for 16 readers = 30783.63 KB/sec Min throughput per process = 1888.06 KB/sec Max throughput per process = 1964.57 KB/sec Avg throughput per process = 1924.01 KB/sec Min xfer = 1007760.00 KB Children see throughput for 16 re-readers = 31117.92 KB/sec Parent sees throughput for 16 re-readers = 31117.43 KB/sec Min throughput per process = 1912.12 KB/sec Max throughput per process = 1978.56 KB/sec Avg throughput per process = 1944.87 KB/sec Min xfer = 1013376.00 KB Children see throughput for 16 random readers = 47828.45 KB/sec Parent sees throughput for 16 random readers = 47827.89 KB/sec Min throughput per process = 2988.97 KB/sec Max throughput per process = 2989.66 KB/sec Avg throughput per process = 2989.28 KB/sec Min xfer = 1048352.00 KB Children see throughput for 16 random writers = 128.94 KB/sec Parent sees throughput for 16 random writers = 128.87 KB/sec Min throughput per process = 8.06 KB/sec Max throughput per process = 8.06 KB/sec Avg throughput per process = 8.06 KB/sec Min xfer = 1047488.00 KB EXT3 TEST: iostat data: avg-cpu: %user %nice %system %iowait %steal %idle 0.00 0.00 0.00 22.25 0.00 77.75 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util sda 0.00 14.00 0.00 17.00 0.00 272.00 32.00 13.34 880.29 58.88 100.10 [root@localhost ext3]# time iozone -s 1g -I -i 0 -i 1 -i 2 -r 16 -t 16 -F file1 file2 file3 file4 file5 file6 file7 file8 file9 file10 file11 file12 file13 file14 file15 file16 Iozone: Performance Test of File I/O Version $Revision: 3.326 $ Compiled for 64 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, Gavin Brebner, Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root. Run began: Sun Oct 25 15:46:29 2009 File size set to 1048576 KB O_DIRECT feature enabled Record Size 16 KB Command line used: iozone -s 1g -I -i 0 -i 1 -i 2 -r 16 -t 16 -F file1 file2 file3 file4 file5 file6 file7 file8 file9 file10 file11 file12 file13 file14 file15 file16 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 16 processes Each process writes a 1048576 Kbyte file in 16 Kbyte records Children see throughput for 16 initial writers = 5700.67 KB/sec Parent sees throughput for 16 initial writers = 5699.14 KB/sec Min throughput per process = 356.22 KB/sec Max throughput per process = 356.36 KB/sec Avg throughput per process = 356.29 KB/sec Min xfer = 1048160.00 KB Children see throughput for 16 rewriters = 5589.44 KB/sec Parent sees throughput for 16 rewriters = 5589.40 KB/sec Min throughput per process = 349.03 KB/sec Max throughput per process = 349.94 KB/sec Avg throughput per process = 349.34 KB/sec Min xfer = 1045856.00 KB Children see throughput for 16 readers = 31302.70 KB/sec Parent sees throughput for 16 readers = 31302.23 KB/sec Min throughput per process = 1943.88 KB/sec Max throughput per process = 1971.75 KB/sec Avg throughput per process = 1956.42 KB/sec Min xfer = 1033760.00 KB Children see throughput for 16 re-readers = 30888.13 KB/sec Parent sees throughput for 16 re-readers = 30887.61 KB/sec Min throughput per process = 1886.46 KB/sec Max throughput per process = 1988.36 KB/sec Avg throughput per process = 1930.51 KB/sec Min xfer = 994848.00 KB Children see throughput for 16 random readers = 48416.86 KB/sec Parent sees throughput for 16 random readers = 48416.43 KB/sec Min throughput per process = 3025.98 KB/sec Max throughput per process = 3026.23 KB/sec Avg throughput per process = 3026.05 KB/sec Min xfer = 1048496.00 KB SATA, XFS: root@otherserver:/mnt/bla# iozone -s 1g -I -i 0 -i 1 -i 2 -r 16 -t 16 -F file1 file2 file3 file4 file5 file6 file7 file8 file9 file10 file11 file12 file13 file14 file15 file16 Iozone: Performance Test of File I/O Version $Revision: 3.287 $ Compiled for 64 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, Benny Halevy, Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root. Run began: Thu Oct 29 00:10:57 2009 File size set to 1048576 KB O_DIRECT feature enabled Record Size 16 KB Command line used: iozone -s 1g -I -i 0 -i 1 -i 2 -r 16 -t 16 -F file1 file2 file3 file4 file5 file6 file7 file8 file9 file10 file11 file12 file13 file14 file15 f ile16 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 16 processes Each process writes a 1048576 Kbyte file in 16 Kbyte records Children see throughput for 16 initial writers = 1440.84 KB/sec Parent sees throughput for 16 initial writers = 1423.86 KB/sec Min throughput per process = 89.14 KB/sec Max throughput per process = 91.13 KB/sec Avg throughput per process = 90.05 KB/sec Min xfer = 1025680.00 KB Children see throughput for 16 rewriters = 7145.22 KB/sec Parent sees throughput for 16 rewriters = 7144.18 KB/sec Min throughput per process = 440.26 KB/sec Max throughput per process = 452.77 KB/sec Avg throughput per process = 446.58 KB/sec Min xfer = 1019616.00 KB Children see throughput for 16 readers = 14083.01 KB/sec Parent sees throughput for 16 readers = 14081.69 KB/sec Min throughput per process = 862.64 KB/sec Max throughput per process = 910.23 KB/sec Avg throughput per process = 880.19 KB/sec Min xfer = 993920.00 KB Children see throughput for 16 re-readers = 14097.93 KB/sec Parent sees throughput for 16 re-readers = 14096.58 KB/sec Min throughput per process = 859.51 KB/sec Max throughput per process = 913.75 KB/sec Avg throughput per process = 881.12 KB/sec Min xfer = 986480.00 KB Children see throughput for 16 random readers = 1131.11 KB/sec Parent sees throughput for 16 random readers = 1131.10 KB/sec Min throughput per process = 69.61 KB/sec Max throughput per process = 71.88 KB/sec Avg throughput per process = 70.69 KB/sec Min xfer = 1015488.00 KB Children see throughput for 16 random writers = 3044.94 KB/sec Parent sees throughput for 16 random writers = 3021.44 KB/sec Min throughput per process = 189.19 KB/sec Max throughput per process = 191.74 KB/sec Avg throughput per process = 190.31 KB/sec Min xfer = 1034656.00 KB iozone test complete. SAS, XFS: [root@localhost xfs_sas]# time iozone -s 1g -I -i 0 -i 1 -i 2 -r 16 -t 16 -F file1 file2 file3 file4 file5 file6 file7 file8 file9 file10 file11 file12 file13 file14 file 15 file16 Iozone: Performance Test of File I/O Version $Revision: 3.326 $ Compiled for 64 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, Gavin Brebner, Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root. Run began: Wed Oct 28 18:39:22 2009 File size set to 1048576 KB O_DIRECT feature enabled Record Size 16 KB Command line used: iozone -s 1g -I -i 0 -i 1 -i 2 -r 16 -t 16 -F file1 file2 file3 file4 file5 file6 file7 file8 file9 file10 file11 file12 file13 file14 file15 f ile16 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 16 processes Each process writes a 1048576 Kbyte file in 16 Kbyte records Children see throughput for 16 initial writers = 3090.61 KB/sec Parent sees throughput for 16 initial writers = 2947.67 KB/sec Min throughput per process = 185.47 KB/sec Max throughput per process = 201.86 KB/sec Avg throughput per process = 193.16 KB/sec Min xfer = 963472.00 KB Children see throughput for 16 rewriters = 3331.30 KB/sec Parent sees throughput for 16 rewriters = 3331.24 KB/sec Min throughput per process = 186.44 KB/sec Max throughput per process = 219.57 KB/sec Avg throughput per process = 208.21 KB/sec Min xfer = 890384.00 KB Children see throughput for 16 readers = 37214.66 KB/sec Parent sees throughput for 16 readers = 37210.53 KB/sec Min throughput per process = 1901.88 KB/sec Max throughput per process = 2553.02 KB/sec Avg throughput per process = 2325.92 KB/sec Min xfer = 781184.00 KB Children see throughput for 16 re-readers = 37457.81 KB/sec Parent sees throughput for 16 re-readers = 37453.29 KB/sec Min throughput per process = 2058.17 KB/sec Max throughput per process = 2539.35 KB/sec Avg throughput per process = 2341.11 KB/sec Min xfer = 850000.00 KB Children see throughput for 16 random readers = 5959.55 KB/sec Parent sees throughput for 16 random readers = 5959.47 KB/sec Min throughput per process = 360.43 KB/sec Max throughput per process = 382.24 KB/sec Avg throughput per process = 372.47 KB/sec Min xfer = 988736.00 KB Children see throughput for 16 random writers = 4843.11 KB/sec Parent sees throughput for 16 random writers = 4701.44 KB/sec Min throughput per process = 293.10 KB/sec Max throughput per process = 310.69 KB/sec Avg throughput per process = 302.69 KB/sec Min xfer = 989232.00 KB iozone test complete. real 288m19.657s user 0m4.683s sys 1m58.797s