root@beastie:/zoo/no_compress # iozone -M -e -+u -T -t 8 -r 128k -s128m -i 0 -i 1 -i 2 -i 8 -+p 70 -C Iozone: Performance Test of File I/O Version $Revision: 3.420 $ Compiled for 32 bit mode. Build: freebsd 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: Fri Feb 5 11:44:02 2016 Machine = FreeBSD beastie.mstride.com 11.0-CURRENT FreeBSD 11.0-CURRENT #4 r28 Include fsync in write timing Include fsync in write timing CPU utilization Resolution = 0.000 seconds. CPU utilization Excel chart enabled Record Size 128 KB File size set to 131072 KB Percent read in mix test is 70 Command line used: iozone -M -e -+u -T -t 8 -r 128k -s128m -i 0 -i 1 -i 2 -i 8 -+p 70 -C 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 8 threads Each thread writes a 131072 Kbyte file in 128 Kbyte records Children see throughput for 8 initial writers = 11309.36 KB/sec Parent sees throughput for 8 initial writers = 10574.34 KB/sec Min throughput per thread = 1340.22 KB/sec Max throughput per thread = 1519.51 KB/sec Avg throughput per thread = 1413.67 KB/sec Min xfer = 115840.00 KB CPU Utilization: Wall time 92.420 CPU time 10.363 CPU utilization 11.21 % Child[0] xfer count = 115840.00 KB, Throughput = 1340.22 KB/sec, wall=91.974, cpu= 1.322, %= 1.44 Child[1] xfer count = 118016.00 KB, Throughput = 1365.23 KB/sec, wall=92.236, cpu= 1.335, %= 1.45 Child[2] xfer count = 115968.00 KB, Throughput = 1341.56 KB/sec, wall=92.420, cpu= 1.335, %= 1.45 Child[3] xfer count = 131072.00 KB, Throughput = 1519.51 KB/sec, wall=86.259, cpu= 1.234, %= 1.43 Child[4] xfer count = 119296.00 KB, Throughput = 1380.04 KB/sec, wall=91.802, cpu= 1.333, %= 1.45 Child[5] xfer count = 118656.00 KB, Throughput = 1372.80 KB/sec, wall=91.060, cpu= 1.312, %= 1.44 Child[6] xfer count = 130560.00 KB, Throughput = 1510.54 KB/sec, wall=86.533, cpu= 1.242, %= 1.44 Child[7] xfer count = 127872.00 KB, Throughput = 1479.45 KB/sec, wall=86.882, cpu= 1.250, %= 1.44 Children see throughput for 8 rewriters = 12478.86 KB/sec Parent sees throughput for 8 rewriters = 12460.19 KB/sec Min throughput per thread = 1395.78 KB/sec Max throughput per thread = 1697.66 KB/sec Avg throughput per thread = 1559.86 KB/sec Min xfer = 108800.00 KB CPU utilization: Wall time 77.949 CPU time 10.673 CPU utilization 13.69 % Child[0] xfer count = 122880.00 KB, Throughput = 1576.41 KB/sec, wall=77.949, cpu= 1.334, %= 1.71 Child[1] xfer count = 116224.00 KB, Throughput = 1491.03 KB/sec, wall=77.949, cpu= 1.335, %= 1.71 Child[2] xfer count = 121216.00 KB, Throughput = 1557.55 KB/sec, wall=77.825, cpu= 1.334, %= 1.71 Child[3] xfer count = 123392.00 KB, Throughput = 1582.98 KB/sec, wall=77.949, cpu= 1.335, %= 1.71 Child[4] xfer count = 131072.00 KB, Throughput = 1697.66 KB/sec, wall=77.208, cpu= 1.332, %= 1.73 Child[5] xfer count = 108800.00 KB, Throughput = 1395.78 KB/sec, wall=77.949, cpu= 1.335, %= 1.71 Child[6] xfer count = 124544.00 KB, Throughput = 1597.76 KB/sec, wall=77.949, cpu= 1.334, %= 1.71 Child[7] xfer count = 123136.00 KB, Throughput = 1579.70 KB/sec, wall=77.949, cpu= 1.334, %= 1.71 Children see throughput for 8 readers = 18041.55 KB/sec Parent sees throughput for 8 readers = 18013.59 KB/sec Min throughput per thread = 1691.25 KB/sec Max throughput per thread = 2650.57 KB/sec Avg throughput per thread = 2255.19 KB/sec Min xfer = 83712.00 KB CPU utilization: Wall time 49.591 CPU time 5.113 CPU utilization 10.31 % Child[0] xfer count = 106368.00 KB, Throughput = 2144.91 KB/sec, wall=49.591, cpu= 0.639, %= 1.29 Child[1] xfer count = 118400.00 KB, Throughput = 2393.22 KB/sec, wall=49.473, cpu= 0.639, %= 1.29 Child[2] xfer count = 119552.00 KB, Throughput = 2411.79 KB/sec, wall=49.570, cpu= 0.639, %= 1.29 Child[3] xfer count = 129792.00 KB, Throughput = 2621.01 KB/sec, wall=49.520, cpu= 0.639, %= 1.29 Child[4] xfer count = 83712.00 KB, Throughput = 1691.25 KB/sec, wall=49.497, cpu= 0.639, %= 1.29 Child[5] xfer count = 116096.00 KB, Throughput = 2343.28 KB/sec, wall=49.544, cpu= 0.639, %= 1.29 Child[6] xfer count = 88320.00 KB, Throughput = 1785.52 KB/sec, wall=49.464, cpu= 0.639, %= 1.29 Child[7] xfer count = 131072.00 KB, Throughput = 2650.57 KB/sec, wall=49.451, cpu= 0.639, %= 1.29 Children see throughput for 8 re-readers = 17916.99 KB/sec Parent sees throughput for 8 re-readers = 17883.26 KB/sec Min throughput per thread = 1704.82 KB/sec Max throughput per thread = 2692.66 KB/sec Avg throughput per thread = 2239.62 KB/sec Min xfer = 83072.00 KB CPU utilization: Wall time 48.836 CPU time 4.990 CPU utilization 10.22 % Child[0] xfer count = 91520.00 KB, Throughput = 1876.14 KB/sec, wall=48.781, cpu= 0.624, %= 1.28 Child[1] xfer count = 115200.00 KB, Throughput = 2366.08 KB/sec, wall=48.688, cpu= 0.624, %= 1.28 Child[2] xfer count = 125440.00 KB, Throughput = 2575.68 KB/sec, wall=48.702, cpu= 0.623, %= 1.28 Child[3] xfer count = 131072.00 KB, Throughput = 2692.66 KB/sec, wall=48.678, cpu= 0.623, %= 1.28 Child[4] xfer count = 83072.00 KB, Throughput = 1704.82 KB/sec, wall=48.728, cpu= 0.624, %= 1.28 Child[5] xfer count = 118144.00 KB, Throughput = 2419.22 KB/sec, wall=48.836, cpu= 0.624, %= 1.28 Child[6] xfer count = 86016.00 KB, Throughput = 1762.14 KB/sec, wall=48.813, cpu= 0.624, %= 1.28 Child[7] xfer count = 122880.00 KB, Throughput = 2520.26 KB/sec, wall=48.757, cpu= 0.624, %= 1.28 Children see throughput for 8 random readers = 12506.51 KB/sec Parent sees throughput for 8 random readers = 12499.65 KB/sec Min throughput per thread = 1498.00 KB/sec Max throughput per thread = 1621.39 KB/sec Avg throughput per thread = 1563.31 KB/sec Min xfer = 121216.00 KB CPU utilization: Wall time 80.919 CPU time 6.359 CPU utilization 7.86 % Child[0] xfer count = 125312.00 KB, Throughput = 1549.07 KB/sec, wall=80.895, cpu= 0.795, %= 0.98 Child[1] xfer count = 126592.00 KB, Throughput = 1565.20 KB/sec, wall=80.879, cpu= 0.795, %= 0.98 Child[2] xfer count = 125184.00 KB, Throughput = 1548.43 KB/sec, wall=80.846, cpu= 0.795, %= 0.98 Child[3] xfer count = 129024.00 KB, Throughput = 1595.64 KB/sec, wall=80.860, cpu= 0.795, %= 0.98 Child[4] xfer count = 131072.00 KB, Throughput = 1621.39 KB/sec, wall=80.839, cpu= 0.794, %= 0.98 Child[5] xfer count = 123904.00 KB, Throughput = 1531.42 KB/sec, wall=80.908, cpu= 0.795, %= 0.98 Child[6] xfer count = 121216.00 KB, Throughput = 1498.00 KB/sec, wall=80.919, cpu= 0.795, %= 0.98 Child[7] xfer count = 129152.00 KB, Throughput = 1597.36 KB/sec, wall=80.853, cpu= 0.795, %= 0.98 Children see throughput for 8 mixed workload = 10451.51 KB/sec Parent sees throughput for 8 mixed workload = 8176.22 KB/sec Min throughput per thread = 670.85 KB/sec Max throughput per thread = 3193.28 KB/sec Avg throughput per thread = 1306.44 KB/sec Min xfer = 27648.00 KB CPU utilization: Wall time 52.617 CPU time 4.092 CPU utilization 7.78 % Child[0] xfer count = 35072.00 KB, Throughput = 850.99 KB/sec, wall=41.213, cpu= 0.470, %= 1.14 Child[1] xfer count = 39552.00 KB, Throughput = 959.69 KB/sec, wall=41.213, cpu= 0.470, %= 1.14 Child[2] xfer count = 40064.00 KB, Throughput = 972.12 KB/sec, wall=41.213, cpu= 0.470, %= 1.14 Child[3] xfer count = 38272.00 KB, Throughput = 928.64 KB/sec, wall=41.213, cpu= 0.470, %= 1.14 Child[4] xfer count = 32640.00 KB, Throughput = 791.98 KB/sec, wall=41.213, cpu= 0.470, %= 1.14 Child[5] xfer count = 85888.00 KB, Throughput = 2083.97 KB/sec, wall=49.333, cpu= 0.613, %= 1.24 Child[6] xfer count = 131072.00 KB, Throughput = 3193.28 KB/sec, wall=41.046, cpu= 0.469, %= 1.14 Child[7] xfer count = 27648.00 KB, Throughput = 670.85 KB/sec, wall=52.617, cpu= 0.661, %= 1.26 Children see throughput for 8 random writers = 10803.96 KB/sec Parent sees throughput for 8 random writers = 9012.57 KB/sec Min throughput per thread = 1131.00 KB/sec Max throughput per thread = 1684.20 KB/sec Avg throughput per thread = 1350.49 KB/sec Min xfer = 88192.00 KB CPU utilization: Wall time 93.849 CPU time 11.709 CPU utilization 12.48 % Child[0] xfer count = 94720.00 KB, Throughput = 1214.72 KB/sec, wall=93.035, cpu= 1.523, %= 1.64 Child[1] xfer count = 109312.00 KB, Throughput = 1383.65 KB/sec, wall=88.871, cpu= 1.443, %= 1.62 Child[2] xfer count = 110720.00 KB, Throughput = 1419.91 KB/sec, wall=90.055, cpu= 1.466, %= 1.63 Child[3] xfer count = 103680.00 KB, Throughput = 1312.36 KB/sec, wall=93.709, cpu= 1.527, %= 1.63 Child[4] xfer count = 102400.00 KB, Throughput = 1313.21 KB/sec, wall=90.648, cpu= 1.479, %= 1.63 Child[5] xfer count = 88192.00 KB, Throughput = 1131.00 KB/sec, wall=93.849, cpu= 1.527, %= 1.63 Child[6] xfer count = 105728.00 KB, Throughput = 1344.92 KB/sec, wall=92.290, cpu= 1.510, %= 1.64 Child[7] xfer count = 131072.00 KB, Throughput = 1684.20 KB/sec, wall=77.825, cpu= 1.232, %= 1.58 iozone test complete.