chi-vdb71-test-20180228001-disktest

2 x Intel Xeon E5-2670 0 testing with a Dell 0X3D66 and Matrox s G200eR2 on Red Hat Enterprise Linux Server 6.7 via the Phoronix Test Suite.

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chi-vdb71-test-20180228001-disktest-describe
February 27 2018
 
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chi-vdb71-test-20180228001-disktestOpenBenchmarking.orgPhoronix Test Suite2 x Intel Xeon E5-2670 0 @ 2.60GHz (16 Cores)Dell 0X3D66Intel Xeon E5/Core16 x 16384 MB DDR3-1600MHz299GB PERC H710P + 7195GB PERC H710PMatrox s G200eR2Intel 82599ES 10-Gigabit SFI/SFP+Red Hat Enterprise Linux Server 6.72.6.32-573.22.1.el6.x86_64 (x86_64)GCC 4.4.7 20120313ext4ProcessorMotherboardChipsetMemoryDiskGraphicsNetworkOSKernelCompilerFile-SystemChi-vdb71-test-20180228001-disktest BenchmarksSystem Logs- --build=x86_64-redhat-linux --disable-dssi --disable-libjava-multilib --disable-libunwind-exceptions --enable-__cxa_atexit --enable-bootstrap --enable-checking=release --enable-gnu-unique-object --enable-java-awt=gtk --enable-java-maintainer-mode --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-libgcj-multifile --enable-shared --enable-threads=posix --mandir=/usr/share/man --with-arch_32=i686 --with-cloog --with-ppl --with-tune=generic - DEADLINE / barrier=1,data=ordered,relatime,rw

chi-vdb71-test-20180228001-disktesttiobench: Read - 32MB - 4tiobench: Read - 32MB - 8tiobench: Read - 64MB - 4tiobench: Read - 64MB - 8tiobench: Read - 128MB - 4tiobench: Read - 128MB - 8tiobench: Read - 256MB - 4tiobench: Read - 256MB - 8tiobench: Read - 32MB - 16tiobench: Read - 32MB - 32tiobench: Read - 64MB - 16tiobench: Read - 64MB - 32tiobench: Write - 32MB - 4tiobench: Write - 32MB - 8tiobench: Write - 64MB - 4tiobench: Write - 64MB - 8tiobench: Read - 128MB - 16tiobench: Read - 128MB - 32tiobench: Read - 256MB - 16tiobench: Read - 256MB - 32tiobench: Write - 128MB - 4tiobench: Write - 128MB - 8tiobench: Write - 256MB - 4tiobench: Write - 256MB - 8tiobench: Write - 32MB - 16tiobench: Write - 32MB - 32tiobench: Write - 64MB - 16tiobench: Write - 64MB - 32tiobench: Write - 128MB - 16tiobench: Write - 128MB - 32tiobench: Write - 256MB - 16tiobench: Write - 256MB - 32tiobench: Rand Read - 32MB - 4tiobench: Rand Read - 32MB - 8tiobench: Rand Read - 64MB - 4tiobench: Rand Read - 64MB - 8tiobench: Rand Read - 128MB - 4tiobench: Rand Read - 128MB - 8tiobench: Rand Read - 256MB - 4tiobench: Rand Read - 256MB - 8tiobench: Rand Read - 32MB - 16tiobench: Rand Read - 32MB - 32tiobench: Rand Read - 64MB - 16tiobench: Rand Read - 64MB - 32tiobench: Rand Write - 32MB - 4tiobench: Rand Write - 32MB - 8tiobench: Rand Write - 64MB - 4tiobench: Rand Write - 64MB - 8tiobench: Rand Read - 128MB - 16tiobench: Rand Read - 128MB - 32tiobench: Rand Read - 256MB - 16tiobench: Rand Read - 256MB - 32tiobench: Rand Write - 128MB - 4tiobench: Rand Write - 128MB - 8tiobench: Rand Write - 256MB - 4tiobench: Rand Write - 256MB - 8tiobench: Rand Write - 32MB - 16tiobench: Rand Write - 32MB - 32tiobench: Rand Write - 64MB - 16tiobench: Rand Write - 64MB - 32tiobench: Rand Write - 128MB - 16tiobench: Rand Write - 128MB - 32tiobench: Rand Write - 256MB - 16tiobench: Rand Write - 256MB - 32chi-vdb71-test-20180228001-disktest-describe5569.354588.464826.054210.225140.554041.275095.944053.173982.894310.044193.864186.8652.3379.2649.0875.124038.114294.214178.384398.6547.5572.8746.6971.54106.63114.8595.23105.0692.29100.4789.1198.4236993.7934622.6764466.6966399.41122858.27121490.19243782.11236187.5831986.0634641.8863942.6465735.651021.00890.75905.27740.73127348.74132225.02246720.67275487.591155.82971.801735.141794.69596.67329.49566.16552.601018.661080.991993.892004.83OpenBenchmarking.org

Threaded I/O Tester

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 32MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe12002400360048006000SE +/- 292.85, N = 65569.351. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 32MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe10002000300040005000SE +/- 84.07, N = 34588.461. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 64MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe10002000300040005000SE +/- 20.16, N = 34826.051. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 64MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe9001800270036004500SE +/- 60.92, N = 64210.221. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 128MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe11002200330044005500SE +/- 208.96, N = 65140.551. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 128MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe9001800270036004500SE +/- 5.21, N = 34041.271. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 256MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe11002200330044005500SE +/- 145.93, N = 65095.941. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 256MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe9001800270036004500SE +/- 51.29, N = 34053.171. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 32MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe9001800270036004500SE +/- 80.03, N = 63982.891. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 32MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe9001800270036004500SE +/- 48.54, N = 34310.041. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 64MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe9001800270036004500SE +/- 69.84, N = 34193.861. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 64MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe9001800270036004500SE +/- 17.85, N = 34186.861. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 32MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe1224364860SE +/- 0.93, N = 352.331. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 32MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe20406080100SE +/- 0.34, N = 379.261. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 64MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe1122334455SE +/- 0.30, N = 349.081. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 64MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe20406080100SE +/- 0.12, N = 375.121. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 128MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe9001800270036004500SE +/- 34.24, N = 34038.111. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 128MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe9001800270036004500SE +/- 62.76, N = 34294.211. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 256MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe9001800270036004500SE +/- 27.11, N = 34178.381. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 256MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe9001800270036004500SE +/- 63.60, N = 54398.651. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 128MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe1122334455SE +/- 0.37, N = 347.551. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 128MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe1632486480SE +/- 0.36, N = 372.871. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 256MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe1122334455SE +/- 0.33, N = 346.691. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 256MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe1632486480SE +/- 0.07, N = 371.541. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 32MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe20406080100SE +/- 0.31, N = 3106.631. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 32MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe306090120150SE +/- 0.38, N = 3114.851. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 64MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe20406080100SE +/- 0.98, N = 395.231. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 64MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe20406080100SE +/- 0.21, N = 3105.061. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 128MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe20406080100SE +/- 0.19, N = 392.291. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 128MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe20406080100SE +/- 0.39, N = 3100.471. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 256MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe20406080100SE +/- 1.59, N = 389.111. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 256MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe20406080100SE +/- 0.65, N = 398.421. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 32MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe8K16K24K32K40KSE +/- 1607.22, N = 636993.791. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 32MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe7K14K21K28K35KSE +/- 509.92, N = 534622.671. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 64MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe14K28K42K56K70KSE +/- 1099.38, N = 364466.691. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 64MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe14K28K42K56K70KSE +/- 347.89, N = 366399.411. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 128MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe30K60K90K120K150KSE +/- 691.60, N = 3122858.271. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 128MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe30K60K90K120K150KSE +/- 2010.83, N = 3121490.191. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 256MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe50K100K150K200K250KSE +/- 3274.63, N = 6243782.111. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 256MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe50K100K150K200K250KSE +/- 913.25, N = 3236187.581. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 32MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe7K14K21K28K35KSE +/- 776.20, N = 631986.061. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 32MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe7K14K21K28K35KSE +/- 488.52, N = 534641.881. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 64MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe14K28K42K56K70KSE +/- 889.73, N = 663942.641. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 64MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe14K28K42K56K70KSE +/- 1174.46, N = 365735.651. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 32MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe2004006008001000SE +/- 3.46, N = 31021.001. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 32MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe2004006008001000SE +/- 17.42, N = 6890.751. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 64MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe2004006008001000SE +/- 28.36, N = 6905.271. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 64MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe160320480640800SE +/- 2.55, N = 3740.731. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 128MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe30K60K90K120K150KSE +/- 2372.38, N = 3127348.741. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 128MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe30K60K90K120K150KSE +/- 3956.70, N = 6132225.021. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 256MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe50K100K150K200K250KSE +/- 3203.15, N = 3246720.671. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 256MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe60K120K180K240K300KSE +/- 3789.02, N = 3275487.591. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 128MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe2004006008001000SE +/- 12.07, N = 31155.821. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 128MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe2004006008001000SE +/- 7.17, N = 3971.801. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 256MB - Thread Count: 4chi-vdb71-test-20180228001-disktest-describe400800120016002000SE +/- 17.72, N = 31735.141. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 256MB - Thread Count: 8chi-vdb71-test-20180228001-disktest-describe400800120016002000SE +/- 24.72, N = 31794.691. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 32MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe130260390520650SE +/- 19.85, N = 6596.671. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 32MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe70140210280350SE +/- 5.15, N = 5329.491. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 64MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe120240360480600SE +/- 8.10, N = 3566.161. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 64MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe120240360480600SE +/- 2.20, N = 3552.601. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 128MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe2004006008001000SE +/- 17.14, N = 31018.661. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 128MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe2004006008001000SE +/- 5.96, N = 31080.991. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 256MB - Thread Count: 16chi-vdb71-test-20180228001-disktest-describe400800120016002000SE +/- 13.27, N = 31993.891. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 256MB - Thread Count: 32chi-vdb71-test-20180228001-disktest-describe400800120016002000SE +/- 13.89, N = 32004.831. (CC) gcc options: -O2

64 Results Shown

Threaded I/O Tester:
  Read - 32MB - 4
  Read - 32MB - 8
  Read - 64MB - 4
  Read - 64MB - 8
  Read - 128MB - 4
  Read - 128MB - 8
  Read - 256MB - 4
  Read - 256MB - 8
  Read - 32MB - 16
  Read - 32MB - 32
  Read - 64MB - 16
  Read - 64MB - 32
  Write - 32MB - 4
  Write - 32MB - 8
  Write - 64MB - 4
  Write - 64MB - 8
  Read - 128MB - 16
  Read - 128MB - 32
  Read - 256MB - 16
  Read - 256MB - 32
  Write - 128MB - 4
  Write - 128MB - 8
  Write - 256MB - 4
  Write - 256MB - 8
  Write - 32MB - 16
  Write - 32MB - 32
  Write - 64MB - 16
  Write - 64MB - 32
  Write - 128MB - 16
  Write - 128MB - 32
  Write - 256MB - 16
  Write - 256MB - 32
  Rand Read - 32MB - 4
  Rand Read - 32MB - 8
  Rand Read - 64MB - 4
  Rand Read - 64MB - 8
  Rand Read - 128MB - 4
  Rand Read - 128MB - 8
  Rand Read - 256MB - 4
  Rand Read - 256MB - 8
  Rand Read - 32MB - 16
  Rand Read - 32MB - 32
  Rand Read - 64MB - 16
  Rand Read - 64MB - 32
  Rand Write - 32MB - 4
  Rand Write - 32MB - 8
  Rand Write - 64MB - 4
  Rand Write - 64MB - 8
  Rand Read - 128MB - 16
  Rand Read - 128MB - 32
  Rand Read - 256MB - 16
  Rand Read - 256MB - 32
  Rand Write - 128MB - 4
  Rand Write - 128MB - 8
  Rand Write - 256MB - 4
  Rand Write - 256MB - 8
  Rand Write - 32MB - 16
  Rand Write - 32MB - 32
  Rand Write - 64MB - 16
  Rand Write - 64MB - 32
  Rand Write - 128MB - 16
  Rand Write - 128MB - 32
  Rand Write - 256MB - 16
  Rand Write - 256MB - 32