disk-tiobench

AMD EPYC 7281 16-Core testing with a Dell 065PKD (1.4.3 BIOS) and mgadrmfb on CentOS Linux 7 via the Phoronix Test Suite.

Compare your own system(s) to this result file with the Phoronix Test Suite by running the command: phoronix-test-suite benchmark 1903269-RA-DISKTIOBE76
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Result
Identifier
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Performance Per
Dollar
Date
Run
  Test
  Duration
PERC H740P Mini
March 26 2019
  1 Hour, 55 Minutes
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disk-tiobenchOpenBenchmarking.orgPhoronix Test SuiteAMD EPYC 7281 16-Core @ 2.10GHz (16 Cores / 32 Threads)Dell 065PKD (1.4.3 BIOS)16 x 16384 MB DDR4-2133MT/s 18ASF2G72PDZ-2G6D1960GB PERC H740P MinimgadrmfbCentOS Linux 73.10.0-957.el7.x86_64 (x86_64)GCC 4.8.5 20150623xfs1024x768ProcessorMotherboardMemoryDiskGraphicsOSKernelCompilerFile-SystemScreen ResolutionDisk-tiobench BenchmarksSystem Logs- --build=x86_64-redhat-linux --disable-libgcj --disable-libunwind-exceptions --enable-__cxa_atexit --enable-bootstrap --enable-checking=release --enable-gnu-indirect-function --enable-gnu-unique-object --enable-initfini-array --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-shared --enable-threads=posix --mandir=/usr/share/man --with-arch_32=x86-64 --with-linker-hash-style=gnu --with-tune=generic - DEADLINE / attr2,inode64,logbsize=256k,noquota,relatime,rw,seclabel,sunit=512,swidth=512 - SELinux + Load fences __user pointer sanitization + Full retpoline + SSB disabled via prctl and seccomp

disk-tiobenchtiobench: 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 - 32PERC H740P Mini1167619613.5111078.9518188.0312495.4518543.4211553.4817905.1433537.7139034.9934709.8042911.4354.7394.4453.9494.9435333.3644188.1433591.2441864.4555.0995.8155.4595.95134.73167.29128.06166.13130.67164.38124.41171.7874884109517.24127139.52193392.68260337.25331217.26453908.62634780.81162834.56155506.35306768.39278581.521860.622328.793679.184680.25593669.08536164.471116623.891085980.167273.689145.7414429.0117295.462621.302609.555241.785191.6810201.2810282.2419980.2120250.27OpenBenchmarking.org

Threaded I/O Tester

Tiotester (Threaded I/O Tester) benchmarks the hard disk drive / file-system performance. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 32MB - Thread Count: 4PERC H740P Mini3K6K9K12K15KSE +/- 282.74, N = 9116761. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 32MB - Thread Count: 8PERC H740P Mini4K8K12K16K20KSE +/- 483.51, N = 1219613.511. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 64MB - Thread Count: 4PERC H740P Mini2K4K6K8K10KSE +/- 95.56, N = 311078.951. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 64MB - Thread Count: 8PERC H740P Mini4K8K12K16K20KSE +/- 275.97, N = 418188.031. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 128MB - Thread Count: 4PERC H740P Mini3K6K9K12K15KSE +/- 98.05, N = 312495.451. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 128MB - Thread Count: 8PERC H740P Mini4K8K12K16K20KSE +/- 396.78, N = 1218543.421. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 256MB - Thread Count: 4PERC H740P Mini2K4K6K8K10KSE +/- 198.47, N = 1211553.481. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 256MB - Thread Count: 8PERC H740P Mini4K8K12K16K20KSE +/- 109.22, N = 317905.141. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 32MB - Thread Count: 16PERC H740P Mini7K14K21K28K35KSE +/- 883.81, N = 1233537.711. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 32MB - Thread Count: 32PERC H740P Mini8K16K24K32K40KSE +/- 842.21, N = 939034.991. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 64MB - Thread Count: 16PERC H740P Mini7K14K21K28K35KSE +/- 941.68, N = 1234709.801. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 64MB - Thread Count: 32PERC H740P Mini9K18K27K36K45KSE +/- 1019.99, N = 1242911.431. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 32MB - Thread Count: 4PERC H740P Mini1224364860SE +/- 0.93, N = 454.731. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 32MB - Thread Count: 8PERC H740P Mini20406080100SE +/- 1.71, N = 394.441. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 64MB - Thread Count: 4PERC H740P Mini1224364860SE +/- 0.25, N = 353.941. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 64MB - Thread Count: 8PERC H740P Mini20406080100SE +/- 1.02, N = 394.941. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 128MB - Thread Count: 16PERC H740P Mini8K16K24K32K40KSE +/- 1183.35, N = 1235333.361. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 128MB - Thread Count: 32PERC H740P Mini9K18K27K36K45KSE +/- 860.36, N = 1244188.141. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 256MB - Thread Count: 16PERC H740P Mini7K14K21K28K35KSE +/- 59.67, N = 333591.241. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 256MB - Thread Count: 32PERC H740P Mini9K18K27K36K45KSE +/- 664.45, N = 341864.451. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 128MB - Thread Count: 4PERC H740P Mini1224364860SE +/- 0.66, N = 355.091. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 128MB - Thread Count: 8PERC H740P Mini20406080100SE +/- 0.24, N = 395.811. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 256MB - Thread Count: 4PERC H740P Mini1224364860SE +/- 0.40, N = 355.451. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 256MB - Thread Count: 8PERC H740P Mini20406080100SE +/- 0.03, N = 395.951. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 32MB - Thread Count: 16PERC H740P Mini306090120150SE +/- 1.62, N = 3134.731. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 32MB - Thread Count: 32PERC H740P Mini4080120160200SE +/- 2.06, N = 7167.291. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 64MB - Thread Count: 16PERC H740P Mini306090120150SE +/- 2.21, N = 4128.061. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 64MB - Thread Count: 32PERC H740P Mini4080120160200SE +/- 1.65, N = 12166.131. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 128MB - Thread Count: 16PERC H740P Mini306090120150SE +/- 1.76, N = 3130.671. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 128MB - Thread Count: 32PERC H740P Mini4080120160200SE +/- 2.02, N = 7164.381. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 256MB - Thread Count: 16PERC H740P Mini306090120150SE +/- 0.83, N = 3124.411. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 256MB - Thread Count: 32PERC H740P Mini4080120160200SE +/- 2.92, N = 4171.781. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 32MB - Thread Count: 4PERC H740P Mini16K32K48K64K80KSE +/- 214.59, N = 3748841. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 32MB - Thread Count: 8PERC H740P Mini20K40K60K80K100KSE +/- 3165.50, N = 12109517.241. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 64MB - Thread Count: 4PERC H740P Mini30K60K90K120K150KSE +/- 3219.94, N = 12127139.521. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 64MB - Thread Count: 8PERC H740P Mini40K80K120K160K200KSE +/- 7594.10, N = 12193392.681. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 128MB - Thread Count: 4PERC H740P Mini60K120K180K240K300KSE +/- 5970.62, N = 12260337.251. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 128MB - Thread Count: 8PERC H740P Mini70K140K210K280K350KSE +/- 7271.58, N = 12331217.261. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 256MB - Thread Count: 4PERC H740P Mini100K200K300K400K500KSE +/- 13535.98, N = 12453908.621. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 256MB - Thread Count: 8PERC H740P Mini140K280K420K560K700KSE +/- 13284.57, N = 12634780.811. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 32MB - Thread Count: 16PERC H740P Mini30K60K90K120K150KSE +/- 5756.17, N = 9162834.561. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 32MB - Thread Count: 32PERC H740P Mini30K60K90K120K150KSE +/- 3475.32, N = 12155506.351. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 64MB - Thread Count: 16PERC H740P Mini70K140K210K280K350KSE +/- 9668.95, N = 10306768.391. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 64MB - Thread Count: 32PERC H740P Mini60K120K180K240K300KSE +/- 1581.77, N = 3278581.521. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 32MB - Thread Count: 4PERC H740P Mini400800120016002000SE +/- 6.76, N = 31860.621. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 32MB - Thread Count: 8PERC H740P Mini5001000150020002500SE +/- 2.83, N = 32328.791. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 64MB - Thread Count: 4PERC H740P Mini8001600240032004000SE +/- 12.81, N = 33679.181. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 64MB - Thread Count: 8PERC H740P Mini10002000300040005000SE +/- 41.72, N = 34680.251. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 128MB - Thread Count: 16PERC H740P Mini130K260K390K520K650KSE +/- 11974.75, N = 12593669.081. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 128MB - Thread Count: 32PERC H740P Mini110K220K330K440K550KSE +/- 6444.95, N = 3536164.471. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 256MB - Thread Count: 16PERC H740P Mini200K400K600K800K1000KSE +/- 11716.91, N = 31116623.891. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 256MB - Thread Count: 32PERC H740P Mini200K400K600K800K1000KSE +/- 34544.76, N = 91085980.161. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 128MB - Thread Count: 4PERC H740P Mini16003200480064008000SE +/- 52.24, N = 37273.681. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 128MB - Thread Count: 8PERC H740P Mini2K4K6K8K10KSE +/- 15.53, N = 39145.741. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 256MB - Thread Count: 4PERC H740P Mini3K6K9K12K15KSE +/- 64.67, N = 314429.011. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 256MB - Thread Count: 8PERC H740P Mini4K8K12K16K20KSE +/- 42.65, N = 317295.461. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 32MB - Thread Count: 16PERC H740P Mini6001200180024003000SE +/- 17.73, N = 32621.301. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 32MB - Thread Count: 32PERC H740P Mini6001200180024003000SE +/- 16.82, N = 32609.551. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 64MB - Thread Count: 16PERC H740P Mini11002200330044005500SE +/- 18.40, N = 35241.781. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 64MB - Thread Count: 32PERC H740P Mini11002200330044005500SE +/- 54.62, N = 35191.681. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 128MB - Thread Count: 16PERC H740P Mini2K4K6K8K10KSE +/- 110.06, N = 310201.281. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 128MB - Thread Count: 32PERC H740P Mini2K4K6K8K10KSE +/- 14.80, N = 310282.241. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 256MB - Thread Count: 16PERC H740P Mini4K8K12K16K20KSE +/- 119.09, N = 319980.211. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 256MB - Thread Count: 32PERC H740P Mini4K8K12K16K20KSE +/- 47.84, N = 320250.271. (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