Iozone: Performance Test of File I/O Version $Revision: 3.471 $ 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, Dave Boone, Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root, Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer, Vangel Bojaxhi, Ben England, Vikentsi Lapa, Alexey Skidanov. Run began: Fri Feb 28 20:49:31 2020 Include fsync in write timing Include close in write timing O_DIRECT feature enabled No retest option selected File size set to 65536 kB Record Size 512 kB Multi_buffer. Work area 16777216 bytes Command line used: usr/bin/iozone -ecI -+n -L64 -S32 -s64m -r512k -i0 -i1 -l8 -u8 -m -t8 -F file1 file2 file3 file4 file5 file6 file7 file8 Output is in kBytes/sec Time Resolution = 0.000001 seconds. Processor cache size set to 32 kBytes. Processor cache line size set to 64 bytes. File stride size set to 17 * record size. Min process = 8 Max process = 8 Throughput test with 8 processes Each process writes a 65536 kByte file in 512 kByte records Children see throughput for 8 initial writers = 80145.56 kB/sec Parent sees throughput for 8 initial writers = 41835.71 kB/sec Min throughput per process = 151.00 kB/sec Max throughput per process = 19454.68 kB/sec Avg throughput per process = 10018.19 kB/sec Min xfer = 512.00 kB Children see throughput for 8 readers = 283225.02 kB/sec Parent sees throughput for 8 readers = 276427.04 kB/sec Min throughput per process = 0.00 kB/sec Max throughput per process = 94313.50 kB/sec Avg throughput per process = 35403.13 kB/sec Min xfer = 0.00 kB iozone test complete.