latency

2 x Intel Xeon Platinum 8380 testing with a Dell 0WMWCR (1.1.3 BIOS) and mgadrmfb on Red Hat Enterprise Linux 7.9 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 2106273-FO-2106273FO44
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64 GB DDR4-2933MT
June 27 2021
 
32 GB DDR4-3200MT
June 27 2021
 
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latencyProcessorMotherboardChipsetMemoryDiskGraphicsNetworkOSKernelCompilerFile-SystemScreen Resolution64 GB DDR4-2933MT32 GB DDR4-3200MT2 x Intel Xeon Platinum 8280 @ 4.00GHz (56 Cores)Dell 06NR82 (2.10.2 BIOS)Intel Sky Lake-E DMI3 Registers18 x 64 GB DDR4-2933MT/s HMAA8GR7AJR4N-WM3840GB PERC H740P Mini + 7680GB PERC H740P Mini + 480GB DELLBOSS VDMatrox s Matrox G200eW3Broadcom and subsidiaries NetXtreme BCM5720 2-port Gigabit PCIeRed Hat Enterprise Linux Server 7.93.10.0-1160.25.1.el7.x86_64 (x86_64)GCC 4.8.5 20150623ext41024x7682 x Intel Xeon Platinum 8380 @ 2.30GHz (80 Cores / 160 Threads)Dell 0WMWCR (1.1.3 BIOS)32 x 32 GB DDR4-3200MT/s HMAA4GR7AJR8N-XN480GB DELLBOSS VD + 7680GB PERC H755 FrontmgadrmfbRed Hat Enterprise Linux 7.93.10.0-1160.31.1.el7.x86_64 (x86_64)xfsOpenBenchmarking.orgProcessor Details- 64 GB DDR4-2933MT: Scaling Governor: intel_pstate performanceSecurity Details- 64 GB DDR4-2933MT: Load fences usercopy/swapgs barriers and __user pointer sanitization + Full retpoline IBPB Protection- 32 GB DDR4-3200MT: SELinux + Load fences usercopy/swapgs barriers and __user pointer sanitization + Enhanced IBRS IBPB Protection

64 GB DDR4-2933MT vs. 32 GB DDR4-3200MT ComparisonPhoronix Test SuiteBaseline+47%+47%+94%+94%+141%+141%+188%+188%188.1%187.7%49%Max Bandwidth - All ReadsP.I.B - All ReadsIdle LatencyIntel Memory Latency CheckerIntel Memory Latency CheckerIntel Memory Latency Checker64 GB DDR4-2933MT32 GB DDR4-3200MT

latencyintel-mlc: Idle Latencyintel-mlc: Max Bandwidth - All Readsintel-mlc: Peak Injection Bandwidth - All Reads64 GB DDR4-2933MT32 GB DDR4-3200MT102.40123308.15123291.2368.73355195.37354704.77OpenBenchmarking.org

Intel Memory Latency Checker

Intel Memory Latency Checker (MLC) is a binary-only system memory bandwidth and latency benchmark. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgns, Fewer Is BetterIntel Memory Latency CheckerTest: Idle Latency64 GB DDR4-2933MT32 GB DDR4-3200MT20406080100SE +/- 0.15, N = 3SE +/- 0.03, N = 3102.4068.73
OpenBenchmarking.orgns, Fewer Is BetterIntel Memory Latency CheckerTest: Idle Latency64 GB DDR4-2933MT32 GB DDR4-3200MT20406080100Min: 102.1 / Avg: 102.4 / Max: 102.6Min: 68.7 / Avg: 68.73 / Max: 68.8

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Max Bandwidth - All Reads64 GB DDR4-2933MT32 GB DDR4-3200MT80K160K240K320K400KSE +/- 7.30, N = 3SE +/- 153.76, N = 3123308.15355195.37
OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Max Bandwidth - All Reads64 GB DDR4-2933MT32 GB DDR4-3200MT60K120K180K240K300KMin: 123293.68 / Avg: 123308.15 / Max: 123317.03Min: 354959.91 / Avg: 355195.37 / Max: 355484.41

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Max Bandwidth - 3:1 Reads-Writes64 GB DDR4-2933MT30K60K90K120K150KSE +/- 12.15, N = 3117324.13

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Max Bandwidth - 2:1 Reads-Writes64 GB DDR4-2933MT20K40K60K80K100KSE +/- 19.78, N = 3115900.50

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Max Bandwidth - 1:1 Reads-Writes64 GB DDR4-2933MT20K40K60K80K100KSE +/- 25.98, N = 3110237.77

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Max Bandwidth - Stream-Triad Like64 GB DDR4-2933MT20K40K60K80K100KSE +/- 0.67, N = 3113922.78

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Peak Injection Bandwidth - All Reads64 GB DDR4-2933MT32 GB DDR4-3200MT80K160K240K320K400KSE +/- 49.29, N = 3SE +/- 269.07, N = 3123291.23354704.77
OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Peak Injection Bandwidth - All Reads64 GB DDR4-2933MT32 GB DDR4-3200MT60K120K180K240K300KMin: 123199.7 / Avg: 123291.23 / Max: 123368.7Min: 354227.5 / Avg: 354704.77 / Max: 355158.7

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Peak Injection Bandwidth - 3:1 Reads-Writes64 GB DDR4-2933MT30K60K90K120K150KSE +/- 2.36, N = 3117340.37

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Peak Injection Bandwidth - 2:1 Reads-Writes64 GB DDR4-2933MT20K40K60K80K100KSE +/- 7.69, N = 3115917

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Peak Injection Bandwidth - 1:1 Reads-Writes64 GB DDR4-2933MT20K40K60K80K100KSE +/- 11.91, N = 3110255.07

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Peak Injection Bandwidth - Stream-Triad Like64 GB DDR4-2933MT20K40K60K80K100KSE +/- 12.74, N = 3104306.50

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Max Bandwidth - All Reads - 3:1 Reads-Writes32 GB DDR4-3200MT90K180K270K360K450KSE +/- 172.14, N = 3425041.68

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Max Bandwidth - All Reads - 2:1 Reads-Writes32 GB DDR4-3200MT90K180K270K360K450KSE +/- 3327.08, N = 3437102.00

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Max Bandwidth - All Reads - 1:1 Reads-Writes32 GB DDR4-3200MT70K140K210K280K350KSE +/- 611.00, N = 3319686.58

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Max Bandwidth - All Reads - Stream-Triad Like32 GB DDR4-3200MT70K140K210K280K350KSE +/- 171.59, N = 3327280.63

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Peak Injection Bandwidth - All Reads - 3:1 Reads-Writes32 GB DDR4-3200MT90K180K270K360K450KSE +/- 225.13, N = 3425126.70

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Peak Injection Bandwidth - All Reads - 2:1 Reads-Writes32 GB DDR4-3200MT90K180K270K360K450KSE +/- 3382.73, N = 3435353.80

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Peak Injection Bandwidth - All Reads - 1:1 Reads-Writes32 GB DDR4-3200MT70K140K210K280K350KSE +/- 154.23, N = 3319607.43

OpenBenchmarking.orgMB/s, More Is BetterIntel Memory Latency CheckerTest: Peak Injection Bandwidth - All Reads - Stream-Triad Like32 GB DDR4-3200MT70K140K210K280K350KSE +/- 137.12, N = 3325595.67