Baseline

Intel Core i7-3770K testing on Ubuntu 20.04.4 LTS 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 2404020-NE-BASELINE271
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Result
Identifier
Performance Per
Dollar
Date
Run
  Test
  Duration
Baseline
March 31
  1 Day, 13 Hours, 37 Minutes
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BaselineOpenBenchmarking.orgPhoronix Test SuiteIntel Core i7-3770K @ 3.50GHz (4 Cores / 8 Threads)ASUS P8Z68-V LX (4105 BIOS)32GB4 x 4001GB Western Digital WD40EFAX-68J + 500GB Samsung SSD 840 + 2 x 60GB OCZ VERTEX3(1150MHz)Ubuntu 20.04.4 LTS6.1.74-production+truenas (x86_64)GCC 9.4.0zfsProcessorMotherboardMemoryDiskGraphicsOSKernelCompilerFile-SystemBaseline BenchmarksSystem Logs- libata.allow_tpm=1 nvme_core.multipath=N - Transparent Huge Pages: always- --build=x86_64-linux-gnu --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-gnu-unique-object --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++,gm2 --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-multilib --enable-nls --enable-objc-gc=auto --enable-offload-targets=nvptx-none=/build/gcc-9-9QDOt0/gcc-9-9.4.0/debian/tmp-nvptx/usr,hsa --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --program-prefix=x86_64-linux-gnu- --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-default-libstdcxx-abi=new --with-gcc-major-version-only --with-multilib-list=m32,m64,mx32 --with-target-system-zlib=auto --with-tune=generic --without-cuda-driver -v - Scaling Governor: intel_cpufreq schedutil - CPU Microcode: 0x21- MQ-DEADLINE- gather_data_sampling: Not affected + itlb_multihit: KVM: Mitigation of VMX disabled + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + mmio_stale_data: Unknown: No mitigations + retbleed: Not affected + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Retpolines IBPB: conditional IBRS_FW STIBP: conditional RSB filling PBRSB-eIBRS: Not affected + srbds: Vulnerable: No microcode + tsx_async_abort: Not affected

Baselinetiobench: 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 - 32Baseline1017.4781182.906940.825912.370912.367859.8011030.159765.1651016.7621033.814962.052810.7873.6366.0353.6726.162748.113710.435716.851706.9262.3903.9912.2713.6086.74710.3816.4419.7716.4229.5165.8699.4667596.83510083.55913115.54517769.74023885.76338300.23946032.57970599.74813251.0409114.36018928.99019658.06717.78729.90536.18559.20439151.18830305.65483030.62265947.73471.559116.273125.770224.59551.63377.701100.027139.941202.741280.878394.903619.615OpenBenchmarking.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: 4Baseline2004006008001000SE +/- 74.03, N = 121017.481. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 32MB - Thread Count: 8Baseline30060090012001500SE +/- 39.80, N = 121182.911. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 64MB - Thread Count: 4Baseline2004006008001000SE +/- 44.03, N = 12940.831. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 64MB - Thread Count: 8Baseline2004006008001000SE +/- 26.80, N = 15912.371. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 128MB - Thread Count: 4Baseline2004006008001000SE +/- 37.70, N = 9912.371. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 128MB - Thread Count: 8Baseline2004006008001000SE +/- 4.28, N = 3859.801. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 256MB - Thread Count: 4Baseline2004006008001000SE +/- 70.87, N = 61030.161. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 256MB - Thread Count: 8Baseline160320480640800SE +/- 25.56, N = 9765.171. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 32MB - Thread Count: 16Baseline2004006008001000SE +/- 37.49, N = 151016.761. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 32MB - Thread Count: 32Baseline2004006008001000SE +/- 36.38, N = 121033.811. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 64MB - Thread Count: 16Baseline2004006008001000SE +/- 5.10, N = 3962.051. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 64MB - Thread Count: 32Baseline2004006008001000SE +/- 33.46, N = 12810.791. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 32MB - Thread Count: 4Baseline0.81811.63622.45433.27244.0905SE +/- 0.024, N = 33.6361. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 32MB - Thread Count: 8Baseline246810SE +/- 0.035, N = 36.0351. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 64MB - Thread Count: 4Baseline0.82621.65242.47863.30484.131SE +/- 0.030, N = 33.6721. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 64MB - Thread Count: 8Baseline246810SE +/- 0.070, N = 36.1621. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 128MB - Thread Count: 16Baseline160320480640800SE +/- 20.90, N = 12748.111. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 128MB - Thread Count: 32Baseline150300450600750SE +/- 7.58, N = 4710.441. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 256MB - Thread Count: 16Baseline150300450600750SE +/- 11.62, N = 9716.851. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Read - Size Per Thread: 256MB - Thread Count: 32Baseline150300450600750SE +/- 4.51, N = 3706.931. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 128MB - Thread Count: 4Baseline0.53781.07561.61342.15122.689SE +/- 0.025, N = 32.3901. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 128MB - Thread Count: 8Baseline0.8981.7962.6943.5924.49SE +/- 0.114, N = 93.9911. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 256MB - Thread Count: 4Baseline0.5111.0221.5332.0442.555SE +/- 0.050, N = 62.2711. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 256MB - Thread Count: 8Baseline0.81181.62362.43543.24724.059SE +/- 0.029, N = 33.6081. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 32MB - Thread Count: 16Baseline246810SE +/- 0.047, N = 36.7471. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 32MB - Thread Count: 32Baseline3691215SE +/- 0.24, N = 1210.381. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 64MB - Thread Count: 16Baseline246810SE +/- 0.101, N = 126.4411. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 64MB - Thread Count: 32Baseline3691215SE +/- 0.133, N = 129.7711. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 128MB - Thread Count: 16Baseline246810SE +/- 0.069, N = 36.4221. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 128MB - Thread Count: 32Baseline3691215SE +/- 0.097, N = 39.5161. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 256MB - Thread Count: 16Baseline1.32052.6413.96155.2826.6025SE +/- 0.071, N = 35.8691. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Write - Size Per Thread: 256MB - Thread Count: 32Baseline3691215SE +/- 0.051, N = 39.4661. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 32MB - Thread Count: 4Baseline16003200480064008000SE +/- 366.37, N = 157596.841. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 32MB - Thread Count: 8Baseline2K4K6K8K10KSE +/- 317.94, N = 1210083.561. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 64MB - Thread Count: 4Baseline3K6K9K12K15KSE +/- 621.58, N = 1513115.551. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 64MB - Thread Count: 8Baseline4K8K12K16K20KSE +/- 1151.80, N = 1217769.741. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 128MB - Thread Count: 4Baseline5K10K15K20K25KSE +/- 1371.31, N = 1223885.761. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 128MB - Thread Count: 8Baseline8K16K24K32K40KSE +/- 1518.88, N = 938300.241. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 256MB - Thread Count: 4Baseline10K20K30K40K50KSE +/- 2640.37, N = 946032.581. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 256MB - Thread Count: 8Baseline15K30K45K60K75KSE +/- 3593.46, N = 970599.751. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 32MB - Thread Count: 16Baseline3K6K9K12K15KSE +/- 426.92, N = 1513251.041. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 32MB - Thread Count: 32Baseline2K4K6K8K10KSE +/- 298.91, N = 139114.361. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 64MB - Thread Count: 16Baseline4K8K12K16K20KSE +/- 1136.95, N = 1218928.991. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 64MB - Thread Count: 32Baseline4K8K12K16K20KSE +/- 1372.04, N = 1219658.071. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 32MB - Thread Count: 4Baseline48121620SE +/- 0.46, N = 1517.791. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 32MB - Thread Count: 8Baseline714212835SE +/- 0.63, N = 1529.911. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 64MB - Thread Count: 4Baseline816243240SE +/- 2.61, N = 936.191. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 64MB - Thread Count: 8Baseline1326395265SE +/- 1.11, N = 1259.201. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 128MB - Thread Count: 16Baseline8K16K24K32K40KSE +/- 3112.66, N = 939151.191. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 128MB - Thread Count: 32Baseline6K12K18K24K30KSE +/- 1884.71, N = 930305.651. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 256MB - Thread Count: 16Baseline20K40K60K80K100KSE +/- 3621.56, N = 983030.621. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Read - Size Per Thread: 256MB - Thread Count: 32Baseline14K28K42K56K70KSE +/- 2701.27, N = 965947.731. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 128MB - Thread Count: 4Baseline1632486480SE +/- 3.17, N = 671.561. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 128MB - Thread Count: 8Baseline306090120150SE +/- 2.60, N = 9116.271. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 256MB - Thread Count: 4Baseline306090120150SE +/- 2.57, N = 9125.771. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 256MB - Thread Count: 8Baseline50100150200250SE +/- 4.73, N = 9224.601. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 32MB - Thread Count: 16Baseline1224364860SE +/- 0.30, N = 351.631. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 32MB - Thread Count: 32Baseline20406080100SE +/- 2.10, N = 1577.701. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 64MB - Thread Count: 16Baseline20406080100SE +/- 1.71, N = 12100.031. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 64MB - Thread Count: 32Baseline306090120150SE +/- 2.32, N = 9139.941. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 128MB - Thread Count: 16Baseline4080120160200SE +/- 4.76, N = 8202.741. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 128MB - Thread Count: 32Baseline60120180240300SE +/- 3.08, N = 4280.881. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 256MB - Thread Count: 16Baseline90180270360450SE +/- 9.88, N = 9394.901. (CC) gcc options: -O2

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 20170503Test: Random Write - Size Per Thread: 256MB - Thread Count: 32Baseline130260390520650SE +/- 14.74, N = 9619.621. (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