Linux 4.19 I/O Scheduler Performance

Linux I/O scheduler benchmarks for a future article on Phoronix.com.

Compare your own system(s) to this result file with the Phoronix Test Suite by running the command: phoronix-test-suite benchmark 1811264-SK-LINUX419I79
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Identifier
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  Test
  Duration
CFQ
November 24 2018
  3 Hours, 54 Minutes
Deadline
November 25 2018
  2 Hours, 5 Minutes
Noop
November 25 2018
  3 Hours, 52 Minutes
MQ None
November 25 2018
  3 Hours, 55 Minutes
BFQ low_latency
November 25 2018
  4 Hours, 9 Minutes
BFQ
November 26 2018
  2 Hours, 33 Minutes
Kyber
November 26 2018
  3 Hours, 57 Minutes
MQ Deadline
November 26 2018
  4 Hours, 25 Minutes
Invert Behavior (Only Show Selected Data)
  3 Hours, 36 Minutes

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Linux 4.19 I/O Scheduler PerformanceOpenBenchmarking.orgPhoronix Test Suite2 x AMD EPYC 7601 32-Core (64 Cores / 128 Threads)Dell 02MJ3T (1.2.5 BIOS)AMD Family 17h16 x 32 GB DDR4-2400MT/s 36ASF4G72PZ-2G6D2120GB SSDSCKJB120G7R + 20 x 500GB Samsung SSD 86020 x 500GB Samsung SSD 860 + 120GB SSDSCKJB120G7RMatrox G200eW3VE228Broadcom BCM57416 NetXtreme-E Dual-Media 10G RDMAUbuntu 18.104.19.0-041900-generic (x86_64)GCC 8.2.0 + Clang 7.0.0-3 + LLVM 7.0.0ext41600x1200ProcessorMotherboardChipsetMemoryDisksGraphicsMonitorNetworkOSKernelCompilerFile-SystemScreen ResolutionLinux 4.19 I/O Scheduler Performance BenchmarksSystem Logs- --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++ --enable-libmpx --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-multilib --enable-nls --enable-objc-gc=auto --enable-offload-targets=nvptx-none --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 --with-tune=generic --without-cuda-driver -v - CFQ: CFQ / relatime,rw- Deadline: DEADLINE / relatime,rw- Noop: NOOP / relatime,rw- MQ None: NONE / relatime,rw- BFQ low_latency: BFQ / relatime,rw- BFQ: BFQ / relatime,rw- Kyber: KYBER / relatime,rw- MQ Deadline: MQ-DEADLINE / relatime,rw- Python 2.7.15+ + Python 3.6.7- __user pointer sanitization + Full AMD retpoline IBPB + SSB disabled via prctl and seccomp

CFQDeadlineNoopMQ NoneBFQ low_latencyBFQKyberMQ DeadlineResult OverviewPhoronix Test Suite100%133%167%200%234%SQLitePostgreSQL pgbenchFS-MarkFlexible IO TesterBlogBenchCompile BenchTimed GCC CompilationTimed Linux Kernel Compilation

Linux 4.19 I/O Scheduler Performancepgbench: Buffer Test - Normal Load - Read Writepgbench: Buffer Test - Normal Load - Read Onlyblogbench: Readfs-mark: 5000 Files, 1MB Size, 4 Threadsbuild-gcc: Time To Compilesqlite: Timed SQLite Insertionscompilebench: Compilebuild-linux-kernel: Time To Compilefs-mark: 4000 Files, 32 Sub Dirs, 1MB Sizefio: Rand Write - Linux AIO - No - Yes - 2MB - Default Test Directoryfio: Rand Write - Linux AIO - No - Yes - 4KB - Default Test Directoryfs-mark: 1000 Files, 1MB Sizefio: Seq Write - Linux AIO - No - Yes - 2MB - Default Test Directoryfio: Seq Read - Linux AIO - No - Yes - 2MB - Default Test Directoryfio: Rand Read - Linux AIO - No - Yes - 2MB - Default Test Directoryfio: Seq Write - Linux AIO - No - Yes - 4KB - Default Test Directoryfio: Seq Read - Linux AIO - No - Yes - 4KB - Default Test Directoryfio: Rand Read - Linux AIO - No - Yes - 4KB - Default Test Directoryfs-mark: 1000 Files, 1MB Size, No Sync/FSynccompilebench: Read Compiled Treecompilebench: Initial Createblogbench: WriteCFQDeadlineNoopMQ NoneBFQ low_latencyBFQKyberMQ Deadline365651943874839618180633.17155426.3886.70391237174405382253313322284189088137023547507455247073614317380334.20157626.3784.47403237173410382542315324313189693838822817255453370970584717880777.10156826.4881.8031023891.30318253542309253271189796839121485208953346379507514080068.29157126.5057.2028022764.43311252543309252270192097239627320340651979278554113180475.05159126.4966.9322321261.33312252543310253272191896039422512483754571980514818180057.32157526.4383.83379236168.23386381542313329270189696938724163230349789978053618380469.11157726.4289.1731123691.68312253543308253275190994939027492245350639778344612379677.52157726.4467.3824322659.23313252543307252272189395538926342OpenBenchmarking.org

PostgreSQL pgbench

This is a simple benchmark of PostgreSQL using pgbench. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 10.3Scaling: Buffer Test - Test: Normal Load - Mode: Read WriteBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop11002200330044005500SE +/- 30.68, N = 3SE +/- 274.44, N = 6SE +/- 482.90, N = 6SE +/- 43.49, N = 3SE +/- 328.42, N = 9SE +/- 116.16, N = 6SE +/- 79.41, N = 9SE +/- 178.04, N = 9483734063656507423032453208925541. (CC) gcc options: -fno-strict-aliasing -fwrapv -O2 -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm

OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 10.3Scaling: Buffer Test - Test: Normal Load - Mode: Read OnlyBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop120K240K360K480K600KSE +/- 9965.65, N = 3SE +/- 8044.90, N = 9SE +/- 14237.99, N = 9SE +/- 5594.65, N = 3SE +/- 16915.21, N = 9SE +/- 17086.01, N = 9SE +/- 1266.65, N = 3SE +/- 5081.43, N = 35457195197925194385524704978995063975334635337091. (CC) gcc options: -fno-strict-aliasing -fwrapv -O2 -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm

BlogBench

BlogBench is designed to replicate the load of a real-world busy file server by stressing the file-system with multiple threads of random reads, writes, and rewrites. The behavior is mimicked of that of a blog by creating blogs with content and pictures, modifying blog posts, adding comments to these blogs, and then reading the content of the blogs. All of these blogs generated are created locally with fake content and pictures. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFinal Score, More Is BetterBlogBench 1.0Test: ReadBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop200K400K600K800K1000KSE +/- 6417.79, N = 3SE +/- 7744.57, N = 3SE +/- 12021.04, N = 3SE +/- 12667.35, N = 4SE +/- 3436.67, N = 3SE +/- 15271.38, N = 3SE +/- 5674.85, N = 3SE +/- 14644.01, N = 98051487855417483967361437805367834467950757058471. (CC) gcc options: -O2 -pthread

FS-Mark

FS_Mark is designed to test a system's file-system performance. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFiles/s, More Is BetterFS-Mark 3.3Test: 5000 Files, 1MB Size, 4 ThreadsBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop4080120160200SE +/- 5.19, N = 12SE +/- 9.48, N = 6SE +/- 5.69, N = 12SE +/- 0.13, N = 3SE +/- 0.35, N = 3SE +/- 12.68, N = 6SE +/- 8.57, N = 8SE +/- 0.61, N = 31811311811731831231401781. (CC) gcc options: -static

Timed GCC Compilation

This test times how long it takes to build the GNU Compiler Collection (GCC). Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed GCC Compilation 8.2Time To CompileBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop2004006008001000800804806803804796800807

SQLite

This is a simple benchmark of SQLite. At present this test profile just measures the time to perform a pre-defined number of insertions on an indexed database. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterSQLite 3.22Timed SQLite InsertionsBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop20406080100SE +/- 0.64, N = 3SE +/- 8.89, N = 9SE +/- 0.04, N = 3SE +/- 0.02, N = 3SE +/- 9.71, N = 9SE +/- 10.09, N = 9SE +/- 9.94, N = 9SE +/- 10.02, N = 957.3275.0533.1734.2069.1177.5268.2977.101. (CC) gcc options: -O2 -lz -ldl -lpthread

Compile Bench

Compilebench tries to age a filesystem by simulating some of the disk IO common in creating, compiling, patching, stating and reading kernel trees. It indirectly measures how well filesystems can maintain directory locality as the disk fills up and directories age. This current test is setup to use the makej mode with 10 initial directories Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMB/s, More Is BetterCompile Bench 0.6Test: CompileBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop30060090012001500SE +/- 27.17, N = 3SE +/- 23.01, N = 3SE +/- 25.94, N = 12SE +/- 18.06, N = 3SE +/- 9.90, N = 3SE +/- 8.82, N = 3SE +/- 10.25, N = 3SE +/- 3.60, N = 315751591155415761577157715711568

Timed Linux Kernel Compilation

This test times how long it takes to build the Linux kernel in a default configuration. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed Linux Kernel Compilation 4.18Time To CompileBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop612182430SE +/- 0.27, N = 12SE +/- 0.30, N = 12SE +/- 0.30, N = 9SE +/- 0.32, N = 12SE +/- 0.26, N = 12SE +/- 0.29, N = 12SE +/- 0.28, N = 12SE +/- 0.30, N = 1226.4326.4926.3826.3726.4226.4426.5026.48

FS-Mark

FS_Mark is designed to test a system's file-system performance. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFiles/s, More Is BetterFS-Mark 3.3Test: 4000 Files, 32 Sub Dirs, 1MB SizeBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop20406080100SE +/- 0.07, N = 3SE +/- 1.76, N = 12SE +/- 0.06, N = 3SE +/- 0.12, N = 3SE +/- 0.07, N = 3SE +/- 1.79, N = 12SE +/- 1.01, N = 3SE +/- 1.50, N = 383.8366.9386.7084.4789.1767.3857.2081.801. (CC) gcc options: -static

Flexible IO Tester

Fio is an advanced disk benchmark that depends upon the kernel's AIO access library. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMB/s, More Is BetterFlexible IO Tester 3.1Type: Random Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test DirectoryBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop90180270360450SE +/- 3.71, N = 3SE +/- 12.98, N = 12SE +/- 4.04, N = 3SE +/- 7.51, N = 3SE +/- 12.51, N = 12SE +/- 7.26, N = 12SE +/- 1.53, N = 33792233914033112432803101. (CC) gcc options: -rdynamic -std=gnu99 -ffast-math -include -O3 -U_FORTIFY_SOURCE -ll -lgfapi -lglusterfs -lnuma -libverbs -lrt -laio -lz -lm -lpthread -ldl

OpenBenchmarking.orgIOPS, More Is BetterFlexible IO Tester 3.1Type: Random Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test DirectoryBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop13K26K39K52K65KSE +/- 272.85, N = 3SE +/- 632.60, N = 10SE +/- 284.80, N = 3SE +/- 88.19, N = 3SE +/- 771.00, N = 6SE +/- 260.34, N = 3SE +/- 328.30, N = 360333542806076760600605335773358067606331. (CC) gcc options: -rdynamic -std=gnu99 -ffast-math -include -O3 -U_FORTIFY_SOURCE -ll -lgfapi -lglusterfs -lnuma -libverbs -lrt -laio -lz -lm -lpthread -ldl

OpenBenchmarking.orgMB/s, More Is BetterFlexible IO Tester 3.1Type: Random Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test DirectoryBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop50100150200250SE +/- 0.88, N = 3SE +/- 2.41, N = 10SE +/- 1.20, N = 3SE +/- 3.07, N = 6SE +/- 1.15, N = 32362122372372362262272381. (CC) gcc options: -rdynamic -std=gnu99 -ffast-math -include -O3 -U_FORTIFY_SOURCE -ll -lgfapi -lglusterfs -lnuma -libverbs -lrt -laio -lz -lm -lpthread -ldl

FS-Mark

FS_Mark is designed to test a system's file-system performance. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFiles/s, More Is BetterFS-Mark 3.3Test: 1000 Files, 1MB SizeBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop4080120160200SE +/- 0.44, N = 3SE +/- 2.31, N = 12SE +/- 0.09, N = 3SE +/- 0.23, N = 3SE +/- 2.15, N = 12SE +/- 2.40, N = 12SE +/- 2.14, N = 12SE +/- 6.28, N = 12168.2361.33174.00173.0091.6859.2364.4391.301. (CC) gcc options: -static

Flexible IO Tester

Fio is an advanced disk benchmark that depends upon the kernel's AIO access library. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMB/s, More Is BetterFlexible IO Tester 3.1Type: Sequential Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test DirectoryBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop90180270360450SE +/- 4.74, N = 7SE +/- 0.67, N = 3SE +/- 3.84, N = 3SE +/- 0.67, N = 3SE +/- 0.88, N = 3SE +/- 1.86, N = 3SE +/- 0.33, N = 3SE +/- 0.33, N = 33863124054103123133113181. (CC) gcc options: -rdynamic -std=gnu99 -ffast-math -include -O3 -U_FORTIFY_SOURCE -ll -lgfapi -lglusterfs -lnuma -libverbs -lrt -laio -lz -lm -lpthread -ldl

OpenBenchmarking.orgMB/s, More Is BetterFlexible IO Tester 3.1Type: Sequential Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test DirectoryBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop801602403204003812523823822532522522531. (CC) gcc options: -rdynamic -std=gnu99 -ffast-math -include -O3 -U_FORTIFY_SOURCE -ll -lgfapi -lglusterfs -lnuma -libverbs -lrt -laio -lz -lm -lpthread -ldl

OpenBenchmarking.orgMB/s, More Is BetterFlexible IO Tester 3.1Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test DirectoryBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop120240360480600SE +/- 0.33, N = 3SE +/- 0.33, N = 35425432535425435435435421. (CC) gcc options: -rdynamic -std=gnu99 -ffast-math -include -O3 -U_FORTIFY_SOURCE -ll -lgfapi -lglusterfs -lnuma -libverbs -lrt -laio -lz -lm -lpthread -ldl

OpenBenchmarking.orgIOPS, More Is BetterFlexible IO Tester 3.1Type: Sequential Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test DirectoryBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop20K40K60K80K100KSE +/- 635.96, N = 3SE +/- 208.17, N = 3SE +/- 584.05, N = 3SE +/- 437.16, N = 3SE +/- 296.27, N = 3SE +/- 366.67, N = 3SE +/- 133.33, N = 380233793008016780567785677876779167791001. (CC) gcc options: -rdynamic -std=gnu99 -ffast-math -include -O3 -U_FORTIFY_SOURCE -ll -lgfapi -lglusterfs -lnuma -libverbs -lrt -laio -lz -lm -lpthread -ldl

OpenBenchmarking.orgMB/s, More Is BetterFlexible IO Tester 3.1Type: Sequential Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test DirectoryBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop70140210280350SE +/- 2.52, N = 3SE +/- 2.19, N = 3SE +/- 1.86, N = 3SE +/- 0.67, N = 3SE +/- 1.33, N = 3SE +/- 0.67, N = 33133103133153083073093091. (CC) gcc options: -rdynamic -std=gnu99 -ffast-math -include -O3 -U_FORTIFY_SOURCE -ll -lgfapi -lglusterfs -lnuma -libverbs -lrt -laio -lz -lm -lpthread -ldl

OpenBenchmarking.orgIOPS, More Is BetterFlexible IO Tester 3.1Type: Sequential Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test DirectoryBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop20K40K60K80K100KSE +/- 650.64, N = 3SE +/- 33.33, N = 3SE +/- 120.19, N = 3SE +/- 233.33, N = 384300646338256782833647006460064600648001. (CC) gcc options: -rdynamic -std=gnu99 -ffast-math -include -O3 -U_FORTIFY_SOURCE -ll -lgfapi -lglusterfs -lnuma -libverbs -lrt -laio -lz -lm -lpthread -ldl

OpenBenchmarking.orgMB/s, More Is BetterFlexible IO Tester 3.1Type: Sequential Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test DirectoryBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop70140210280350SE +/- 2.33, N = 3SE +/- 0.88, N = 33292533223242532522522531. (CC) gcc options: -rdynamic -std=gnu99 -ffast-math -include -O3 -U_FORTIFY_SOURCE -ll -lgfapi -lglusterfs -lnuma -libverbs -lrt -laio -lz -lm -lpthread -ldl

OpenBenchmarking.orgIOPS, More Is BetterFlexible IO Tester 3.1Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test DirectoryBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop20K40K60K80K100KSE +/- 384.42, N = 3SE +/- 33.33, N = 3SE +/- 33.33, N = 3SE +/- 100.00, N = 3SE +/- 33.33, N = 368767695007266780200704676970069133695001. (CC) gcc options: -rdynamic -std=gnu99 -ffast-math -include -O3 -U_FORTIFY_SOURCE -ll -lgfapi -lglusterfs -lnuma -libverbs -lrt -laio -lz -lm -lpthread -ldl

OpenBenchmarking.orgMB/s, More Is BetterFlexible IO Tester 3.1Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test DirectoryBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop70140210280350SE +/- 0.33, N = 3SE +/- 0.33, N = 32702722843132752722702711. (CC) gcc options: -rdynamic -std=gnu99 -ffast-math -include -O3 -U_FORTIFY_SOURCE -ll -lgfapi -lglusterfs -lnuma -libverbs -lrt -laio -lz -lm -lpthread -ldl

FS-Mark

FS_Mark is designed to test a system's file-system performance. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFiles/s, More Is BetterFS-Mark 3.3Test: 1000 Files, 1MB Size, No Sync/FSyncBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop400800120016002000SE +/- 9.03, N = 3SE +/- 13.64, N = 3SE +/- 4.42, N = 3SE +/- 4.07, N = 3SE +/- 8.63, N = 3SE +/- 5.34, N = 3SE +/- 10.18, N = 3SE +/- 5.04, N = 3189619181890189619091893192018971. (CC) gcc options: -static

Compile Bench

Compilebench tries to age a filesystem by simulating some of the disk IO common in creating, compiling, patching, stating and reading kernel trees. It indirectly measures how well filesystems can maintain directory locality as the disk fills up and directories age. This current test is setup to use the makej mode with 10 initial directories Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMB/s, More Is BetterCompile Bench 0.6Test: Read Compiled TreeBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop2004006008001000SE +/- 13.50, N = 3SE +/- 10.55, N = 3SE +/- 88.38, N = 3SE +/- 16.27, N = 3SE +/- 33.71, N = 3SE +/- 9.75, N = 3SE +/- 0.68, N = 3SE +/- 0.51, N = 3969960881938949955972968

OpenBenchmarking.orgMB/s, More Is BetterCompile Bench 0.6Test: Initial CreateBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop90180270360450SE +/- 4.71, N = 3SE +/- 2.88, N = 3SE +/- 14.05, N = 3SE +/- 5.24, N = 3SE +/- 3.28, N = 3SE +/- 4.48, N = 3SE +/- 2.34, N = 3SE +/- 0.40, N = 3387394370388390389396391

BlogBench

BlogBench is designed to replicate the load of a real-world busy file server by stressing the file-system with multiple threads of random reads, writes, and rewrites. The behavior is mimicked of that of a blog by creating blogs with content and pictures, modifying blog posts, adding comments to these blogs, and then reading the content of the blogs. All of these blogs generated are created locally with fake content and pictures. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFinal Score, More Is BetterBlogBench 1.0Test: WriteBFQBFQ low_latencyCFQDeadlineKyberMQ DeadlineMQ NoneNoop6K12K18K24K30KSE +/- 2384.58, N = 3SE +/- 2941.93, N = 3SE +/- 1591.21, N = 3SE +/- 1730.49, N = 3SE +/- 265.64, N = 3SE +/- 1133.74, N = 3SE +/- 386.03, N = 3SE +/- 1540.70, N = 324163225122354722817274922634227320214851. (CC) gcc options: -O2 -pthread