Linux 3.16 I/O Scheduler

Linux 3.16 kernel IO scheduler benchmarks of Deadline CFQ etc. Benchmarks by Michael Larabel for a future article on Phoronix.

HTML result view exported from: https://openbenchmarking.org/result/1406238-KH-LINUX316I30&grr&sro.

Linux 3.16 I/O SchedulerProcessorMotherboardChipsetMemoryDiskGraphicsAudioNetworkOSKernelDesktopDisplay DriverCompilerFile-SystemScreen ResolutionDeadlineNoopCFQIntel Core i7-4790K @ 4.40GHz (8 Cores)ASRock Z97 Extreme6Intel 4th Gen Core DRAM16384MB128GB Crucial_CT128MX1Intel HD 4600Intel Xeon E3-1200 v3/4thIntel ConnectionUbuntu 14.043.16.0-999-generic (x86_64)Unity 7.2.1intel 2.99.912GCC 4.8.2ext41024x768OpenBenchmarking.orgCompiler Details- --build=x86_64-linux-gnu --disable-browser-plugin --disable-libmudflap --disable-werror --enable-checking=release --enable-clocale=gnu --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-multilib-list=m32,m64,mx32 --with-tune=generic -v Disk Details- Deadline: DEADLINE / data=ordered,errors=remount-ro,relatime,rw - Noop: NOOP / data=ordered,errors=remount-ro,relatime,rw- CFQ: CFQ / data=ordered,errors=remount-ro,relatime,rwProcessor Details- Scaling Governor: intel_pstate performanceSystem Details- Deadline: Disk Scheduler: DEADLINE. Python 2.7.6.- Noop: Disk Scheduler: NOOP. Python 2.7.6.- CFQ: Disk Scheduler: CFQ. Python 2.7.6.

Linux 3.16 I/O Schedulerapache: Static Web Page Servingpostmark: Disk Transaction Performancecompilebench: Read Compiled Treecompilebench: Initial Createcompilebench: Compiletiobench: Rand Write - 32MB - 16blogbench: Writefs-mark: 4000 Files, 32 Sub Dirs, 1MB Sizefs-mark: 5000 Files, 1MB Size, 4 Threadsfs-mark: 1000 Files, 1MB Sizefio: Intel IOMeter File Server Access PatternDeadlineNoopCFQ5520.8258132685.85173.78266.900.57267718.7239.8016.73150.685419.2058132667.57168.15271.000.55238516.4833.4013.42207.865544.9458592669.93164.89271.820.59273714.5727.4012.93219.75OpenBenchmarking.org

Apache Benchmark

Static Web Page Serving

OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.4.7Static Web Page ServingCFQDeadlineNoop12002400360048006000SE +/- 46.97, N = 3SE +/- 51.89, N = 3SE +/- 36.19, N = 35544.945520.825419.201. (CC) gcc options: -shared -fPIC -pthread -O3 -march=native

PostMark

Disk Transaction Performance

OpenBenchmarking.orgTPS, More Is BetterPostMark 1.51Disk Transaction PerformanceCFQDeadlineNoop13002600390052006500SE +/- 46.33, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 35859581358131. (CC) gcc options: -O3

Compile Bench

Test: Read Compiled Tree

OpenBenchmarking.orgMB/s, More Is BetterCompile Bench 0.6Test: Read Compiled TreeCFQDeadlineNoop6001200180024003000SE +/- 16.30, N = 3SE +/- 9.69, N = 3SE +/- 14.20, N = 32669.932685.852667.57

Compile Bench

Test: Initial Create

OpenBenchmarking.orgMB/s, More Is BetterCompile Bench 0.6Test: Initial CreateCFQDeadlineNoop4080120160200SE +/- 22.30, N = 3SE +/- 26.59, N = 3SE +/- 21.55, N = 3164.89173.78168.15

Compile Bench

Test: Compile

OpenBenchmarking.orgMB/s, More Is BetterCompile Bench 0.6Test: CompileCFQDeadlineNoop60120180240300SE +/- 4.86, N = 3SE +/- 1.70, N = 3SE +/- 2.85, N = 3271.82266.90271.00

Threaded I/O Tester

Test: Random Write - Size Per Thread: 32MB - Thread Count: 16

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 0.3.3Test: Random Write - Size Per Thread: 32MB - Thread Count: 16CFQDeadlineNoop0.13280.26560.39840.53120.664SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 30.590.570.55

BlogBench

Test: Write

OpenBenchmarking.orgFinal Score, More Is BetterBlogBench 1.0Test: WriteCFQDeadlineNoop6001200180024003000SE +/- 7.22, N = 3SE +/- 42.07, N = 6SE +/- 88.43, N = 62737267723851. (CC) gcc options: -O2 -pthread

FS-Mark

Test: 4000 Files, 32 Sub Dirs, 1MB Size

OpenBenchmarking.orgFiles/s, More Is BetterFS-Mark 3.3Test: 4000 Files, 32 Sub Dirs, 1MB SizeCFQDeadlineNoop510152025SE +/- 0.30, N = 6SE +/- 0.75, N = 6SE +/- 0.75, N = 614.5718.7216.481. (CC) gcc options: -static

FS-Mark

Test: 5000 Files, 1MB Size, 4 Threads

OpenBenchmarking.orgFiles/s, More Is BetterFS-Mark 3.3Test: 5000 Files, 1MB Size, 4 ThreadsCFQDeadlineNoop918273645SE +/- 1.17, N = 6SE +/- 1.28, N = 6SE +/- 1.54, N = 627.4039.8033.401. (CC) gcc options: -static

FS-Mark

Test: 1000 Files, 1MB Size

OpenBenchmarking.orgFiles/s, More Is BetterFS-Mark 3.3Test: 1000 Files, 1MB SizeCFQDeadlineNoop48121620SE +/- 0.39, N = 6SE +/- 0.70, N = 6SE +/- 0.53, N = 612.9316.7313.421. (CC) gcc options: -static

Flexible IO Tester

Test: Intel IOMeter File Server Access Pattern

OpenBenchmarking.orgSeconds (Run Time), Fewer Is BetterFlexible IO Tester 2.1.9Test: Intel IOMeter File Server Access PatternCFQDeadlineNoop50100150200250SE +/- 13.99, N = 6SE +/- 4.92, N = 6SE +/- 14.43, N = 6219.75150.68207.861. (CC) gcc options: -rdynamic -std=gnu99 -O3 -ffast-math -include -libverbs -lrt -laio -lz -lm -lpthread -ldl


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