Iozone: Performance Test of File I/O Version $Revision: 3.429 $ Compiled for 64 bit mode. Build: linux-AMD64 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, Dave Boone, Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root, Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer, Vangel Bojaxhi, Ben England, Vikentsi Lapa. Run began: Thu Jan 21 14:50:15 2016 Machine = Linux klon2-raw.civ.zcu.cz 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11 Include close in write timing Include close in write timing Include fsync in write timing Record Size 256 kB File size set to 1048576 kB Command line used: iozone -t 3 -Mce -r 256k -s1g -i0 -i1 -F 1 2 3 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 1048576 kByte file in 256 kByte records Children see throughput for 3 initial writers = 167098.84 kB/sec Parent sees throughput for 3 initial writers = 162088.29 kB/sec Min throughput per process = 53810.70 kB/sec Max throughput per process = 56938.14 kB/sec Avg throughput per process = 55699.61 kB/sec Min xfer = 991232.00 kB Children see throughput for 3 rewriters = 158633.25 kB/sec Parent sees throughput for 3 rewriters = 158603.77 kB/sec Min throughput per process = 52868.90 kB/sec Max throughput per process = 52886.71 kB/sec Avg throughput per process = 52877.75 kB/sec Min xfer = 1048576.00 kB Children see throughput for 3 readers = 2327663.19 kB/sec Parent sees throughput for 3 readers = 2326510.26 kB/sec Min throughput per process = 775466.06 kB/sec Max throughput per process = 776188.69 kB/sec Avg throughput per process = 775887.73 kB/sec Min xfer = 1048064.00 kB Children see throughput for 3 re-readers = 2434761.19 kB/sec Parent sees throughput for 3 re-readers = 2433249.76 kB/sec Min throughput per process = 811027.56 kB/sec Max throughput per process = 811969.62 kB/sec Avg throughput per process = 811587.06 kB/sec Min xfer = 1048064.00 kB iozone test complete.