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- [root@srv tmp]# iozone -i 0 -i 1 -i 2 -r 4m -e -t 3 -s 48g
- Iozone: Performance Test of File I/O
- Version $Revision: 3.327 $
- 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 Nov 17 09:10:29 2010
- Record Size 4096 KB
- Include fsync in write timing
- File size set to 50331648 KB
- Command line used: iozone -i 0 -i 1 -i 2 -r 4m -e -t 3 -s 48g
- 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 3 processes
- Each process writes a 50331648 Kbyte file in 4096 Kbyte records
- Children see throughput for 3 initial writers = 465179.06 KB/sec
- Parent sees throughput for 3 initial writers = 461743.62 KB/sec
- Min throughput per process = 154013.98 KB/sec
- Max throughput per process = 155761.56 KB/sec
- Avg throughput per process = 155059.69 KB/sec
- Min xfer = 49496064.00 KB
- Children see throughput for 3 rewriters = 386642.23 KB/sec
- Parent sees throughput for 3 rewriters = 385735.10 KB/sec
- Min throughput per process = 127865.28 KB/sec
- Max throughput per process = 129744.86 KB/sec
- Avg throughput per process = 128880.74 KB/sec
- Min xfer = 49913856.00 KB
- Children see throughput for 3 readers = 155811.06 KB/sec
- Parent sees throughput for 3 readers = 155805.49 KB/sec
- Min throughput per process = 50195.90 KB/sec
- Max throughput per process = 53220.86 KB/sec
- Avg throughput per process = 51937.02 KB/sec
- Min xfer = 47472640.00 KB
- Children see throughput for 3 re-readers = 137056.23 KB/sec
- Parent sees throughput for 3 re-readers = 137046.81 KB/sec
- Min throughput per process = 45332.63 KB/sec
- Max throughput per process = 46212.66 KB/sec
- Avg throughput per process = 45685.41 KB/sec
- Min xfer = 49381376.00 KB
- Children see throughput for 3 random readers = 92924.59 KB/sec
- Parent sees throughput for 3 random readers = 92920.90 KB/sec
- Min throughput per process = 30861.32 KB/sec
- Max throughput per process = 31185.20 KB/sec
- Avg throughput per process = 30974.86 KB/sec
- Min xfer = 49811456.00 KB
- Children see throughput for 3 random writers = 287460.00 KB/sec
- Parent sees throughput for 3 random writers = 285514.32 KB/sec
- Min throughput per process = 95165.34 KB/sec
- Max throughput per process = 96361.16 KB/sec
- Avg throughput per process = 95820.00 KB/sec
- Min xfer = 49704960.00 KB
- [root@srv tmp]#
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