Linux 4.15 I/O Scheduler vs. 4.13 Rough Comparison

Tests by Michael Larabel for a future article on Phoronix.

HTML result view exported from: https://openbenchmarking.org/result/1712075-AL-IOING619956&grr&sro&rro.

ProcessorMotherboardChipsetMemoryDiskGraphicsAudioNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilerFile-SystemScreen ResolutionLinux 4.13Linux 4.15 BFQ BFQ low_latency CFQ Deadline Kyber None BFQ BFQ low_latency CFQ Deadline Kyber NoneIntel Core i7-5600U @ 3.20GHz (4 Cores)LENOVO 20BSCTO1WWIntel Broadwell-U-OPI2 x 4096 MB DDR3-1600MHz128GB SAMSUNG MZNTE128Intel HD 5500 3072MB (950MHz)Intel Broadwell-U AudioIntel Connection + Intel Wireless 7265Ubuntu 17.044.13.0-999-generic (x86_64) 20170814Unity 7.5.0X Server 1.19.3modesetting 1.19.34.5 Mesa 17.0.7GCC 6.3.0 20170406ext41920x1080Intel Core i7-5600U @ 3.20GHz (2 Cores / 4 Threads)2 x 4096 MB DDR3-1600MT/sIntel HD 5500 (950MHz)Ubuntu 17.104.15.0-999-generic (x86_64) 20171203GNOME Shell 3.26.1X Server 1.19.5GCC 7.2.0OpenBenchmarking.orgCompiler Details- Linux 4.13: BFQ: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,ada,c++,java,go,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-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-arch-directory=amd64 --with-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-target-system-zlib --with-tune=generic -v - Linux 4.13: BFQ low_latency: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,ada,c++,java,go,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-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-arch-directory=amd64 --with-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-target-system-zlib --with-tune=generic -v - Linux 4.13: CFQ: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,ada,c++,java,go,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-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-arch-directory=amd64 --with-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-target-system-zlib --with-tune=generic -v - Linux 4.13: Deadline: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,ada,c++,java,go,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-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-arch-directory=amd64 --with-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-target-system-zlib --with-tune=generic -v - Linux 4.13: Kyber: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,ada,c++,java,go,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-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-arch-directory=amd64 --with-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-target-system-zlib --with-tune=generic -v - Linux 4.13: None: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,ada,c++,java,go,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-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-arch-directory=amd64 --with-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-target-system-zlib --with-tune=generic -v - Linux 4.15: BFQ: --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 - Linux 4.15: BFQ low_latency: --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 - Linux 4.15: CFQ: --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 - Linux 4.15: Deadline: --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 - Linux 4.15: Kyber: --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 - Linux 4.15: None: --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 Disk Details- Linux 4.13: BFQ: BFQ / data=ordered,errors=remount-ro,relatime,rw- Linux 4.13: BFQ low_latency: BFQ / data=ordered,errors=remount-ro,relatime,rw- Linux 4.13: CFQ: CFQ / data=ordered,errors=remount-ro,relatime,rw- Linux 4.13: Deadline: DEADLINE / data=ordered,errors=remount-ro,relatime,rw- Linux 4.13: Kyber: KYBER / data=ordered,errors=remount-ro,relatime,rw- Linux 4.13: None: NONE / data=ordered,errors=remount-ro,relatime,rw- Linux 4.15: BFQ: BFQ / data=ordered,errors=remount-ro,relatime,rw- Linux 4.15: BFQ low_latency: BFQ / data=ordered,errors=remount-ro,relatime,rw- Linux 4.15: CFQ: CFQ / data=ordered,errors=remount-ro,relatime,rw- Linux 4.15: Deadline: DEADLINE / data=ordered,errors=remount-ro,relatime,rw- Linux 4.15: Kyber: KYBER / data=ordered,errors=remount-ro,relatime,rw- Linux 4.15: None: NONE / data=ordered,errors=remount-ro,relatime,rwProcessor Details- Scaling Governor: intel_pstate powersave

iozone: 4Kb - 8GB - Write Performanceblogbench: Writeblogbench: Readfs-mark: 5000 Files, 1MB Size, 4 Threadsfs-mark: 1000 Files, 1MB Sizefio: Seq Write - Libaio - No - Yes - 4KB - Default Test Directoryfio: Seq Read - Libaio - No - Yes - 4KB - Default Test Directoryfio: Rand Write - Libaio - No - Yes - 4KB - Default Test Directorysqlite: Default Test Directorystartup-time: Seq - Reads and writes - LibreOffice Writerstartup-time: Seq - Reads and writes - Gnome terminalstartup-time: Rand - Reads and writes - LibreOffice Writerstartup-time: Seq - Only reads - LibreOffice Writerstartup-time: Rand - Reads and writes - Gnome terminalstartup-time: Seq - Only reads - Gnome terminalstartup-time: Rand - Only reads - LibreOffice Writerstartup-time: Seq - Reads and writes - xtermLinux 4.13Linux 4.15 BFQ BFQ low_latency CFQ Deadline Kyber None BFQ BFQ low_latency CFQ Deadline Kyber None89.60316261210326.8717.8027.72218.5926.92147.263.800.314.70106.07288253263247.2023.63104.93230.1389.92137.053.880.852.283.300.440.260.350.25104.22291879805342.1325.65103.23459.4447.83112.340.294.810.162.740.3141.2292.86311964816135.6722.37103.60458.9370.84113.641.485.380.843.440.34110.47302758141061.2734.07117.30347.11107.4196.565.241.160.772.010.313.32125.56357050290373.8741.50135.12206.83125.8089.858.414.940.864.850.542.830.311.3826.752042118230123.6518.2576.97461.1833.07130.711.975.411.313.530.3548.3646.172368112092034.2519.4387.90461.2767.92141.270.710.700.530.960.3419.2282.50315565036955.5835.75113.43459.83104.7992.040.636.390.363.290.5334.7343.08271695004939.8024.2786.56461.2259.60112.941.565.021.053.200.4355.69294477659542.6021.8588.70461.7563.47115.3136.901.626.241.023.590.362.9761.86328363266443.7520.1778.44212.3463.69118.9135.701.675.241.133.560.374.92OpenBenchmarking.org

IOzone

Record Size: 4Kb - File Size: 8GB - Disk Test: Write Performance

Linux 4.15Linux 4.13OpenBenchmarking.orgMB/s, More Is BetterIOzone 3.465Record Size: 4Kb - File Size: 8GB - Disk Test: Write PerformanceNoneKyberDeadlineCFQBFQ low_latencyBFQ306090120150SE +/- 9.31, N = 6SE +/- 9.32, N = 6SE +/- 5.84, N = 6SE +/- 4.61, N = 6SE +/- 6.98, N = 6SE +/- 0.06, N = 3SE +/- 2.93, N = 6SE +/- 3.80, N = 6SE +/- 6.52, N = 6SE +/- 5.23, N = 6SE +/- 1.28, N = 3SE +/- 1.78, N = 661.8655.6943.0882.5046.1726.75125.56110.4792.86104.22106.0789.601. (CC) gcc options: -O3

BlogBench

Test: Write

Linux 4.15Linux 4.13OpenBenchmarking.orgFinal Score, More Is BetterBlogBench 1.0Test: WriteNoneKyberDeadlineCFQBFQ low_latencyBFQ8001600240032004000SE +/- 29.58, N = 3SE +/- 21.48, N = 3SE +/- 153.54, N = 3SE +/- 163.84, N = 3SE +/- 92.59, N = 3SE +/- 70.95, N = 3SE +/- 26.67, N = 3SE +/- 36.13, N = 3SE +/- 123.20, N = 3SE +/- 73.37, N = 3SE +/- 125.32, N = 3SE +/- 53.19, N = 33283294427163155236820423570302731192918288231621. (CC) gcc options: -O2 -pthread

BlogBench

Test: Read

Linux 4.15Linux 4.13OpenBenchmarking.orgFinal Score, More Is BetterBlogBench 1.0Test: ReadNoneKyberDeadlineCFQBFQ low_latencyBFQ300K600K900K1200K1500KSE +/- 7796.67, N = 3SE +/- 47438.71, N = 6SE +/- 98431.75, N = 6SE +/- 24461.81, N = 6SE +/- 64889.88, N = 6SE +/- 14794.03, N = 3SE +/- 2993.42, N = 3SE +/- 8262.34, N = 3SE +/- 21980.44, N = 6SE +/- 33226.93, N = 6SE +/- 16411.27, N = 6SE +/- 16219.64, N = 6632664776595950049650369112092011823015029035814106481617980535326326121031. (CC) gcc options: -O2 -pthread

FS-Mark

Test: 5000 Files, 1MB Size, 4 Threads

Linux 4.15Linux 4.13OpenBenchmarking.orgFiles/s, More Is BetterFS-Mark 3.3Test: 5000 Files, 1MB Size, 4 ThreadsNoneKyberDeadlineCFQBFQ low_latencyBFQ1632486480SE +/- 7.96, N = 6SE +/- 8.58, N = 6SE +/- 4.51, N = 6SE +/- 2.74, N = 6SE +/- 5.90, N = 6SE +/- 2.06, N = 6SE +/- 1.09, N = 3SE +/- 4.24, N = 6SE +/- 5.13, N = 6SE +/- 5.65, N = 6SE +/- 7.20, N = 6SE +/- 5.39, N = 643.7542.6039.8055.5834.2523.6573.8761.2735.6742.1347.2026.871. (CC) gcc options: -static

FS-Mark

Test: 1000 Files, 1MB Size

Linux 4.15Linux 4.13OpenBenchmarking.orgFiles/s, More Is BetterFS-Mark 3.3Test: 1000 Files, 1MB SizeNoneKyberDeadlineCFQBFQ low_latencyBFQ918273645SE +/- 1.17, N = 6SE +/- 1.03, N = 6SE +/- 0.62, N = 6SE +/- 1.58, N = 6SE +/- 1.11, N = 6SE +/- 0.79, N = 6SE +/- 0.15, N = 3SE +/- 1.63, N = 6SE +/- 0.38, N = 6SE +/- 0.75, N = 6SE +/- 2.16, N = 6SE +/- 0.29, N = 320.1721.8524.2735.7519.4318.2541.5034.0722.3725.6523.6317.801. (CC) gcc options: -static

Flexible IO Tester

Type: Sequential Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory

Linux 4.15Linux 4.13OpenBenchmarking.orgIOPS, More Is BetterFlexible IO Tester 2.1.13Type: Sequential Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test DirectoryNoneKyberDeadlineCFQBFQ low_latencyBFQ7K14K21K28K35KSE +/- 3600.80, N = 6SE +/- 3697.25, N = 6SE +/- 3536.14, N = 6SE +/- 1168.74, N = 6SE +/- 3999.76, N = 6SE +/- 3861.01, N = 6SE +/- 19.22, N = 3SE +/- 3036.98, N = 6SE +/- 3780.94, N = 6SE +/- 3624.05, N = 6SE +/- 3698.82, N = 6SE +/- 472.97, N = 6196072217221637283532197019240337772932225897258032622869261. (CC) gcc options: -rdynamic -std=gnu99 -O3 -ffast-math -include -lrt -laio -lm -lpthread -ldl

Flexible IO Tester

Type: Sequential Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory

Linux 4.15Linux 4.13OpenBenchmarking.orgMB/s, More Is BetterFlexible IO Tester 2.1.13Type: Sequential Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test DirectoryNoneKyberDeadlineCFQBFQ low_latencyBFQ306090120150SE +/- 14.40, N = 6SE +/- 14.79, N = 6SE +/- 14.14, N = 6SE +/- 4.68, N = 6SE +/- 16.00, N = 6SE +/- 15.44, N = 6SE +/- 0.08, N = 3SE +/- 12.15, N = 6SE +/- 15.12, N = 6SE +/- 14.50, N = 6SE +/- 14.79, N = 6SE +/- 1.89, N = 678.4488.7086.56113.4387.9076.97135.12117.30103.60103.23104.9327.721. (CC) gcc options: -rdynamic -std=gnu99 -O3 -ffast-math -include -lrt -laio -lm -lpthread -ldl

Flexible IO Tester

Type: Sequential Read - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory

Linux 4.15Linux 4.13OpenBenchmarking.orgIOPS, More Is BetterFlexible IO Tester 2.1.13Type: Sequential Read - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test DirectoryNoneKyberDeadlineCFQBFQ low_latencyBFQ20K40K60K80K100KSE +/- 744.77, N = 3SE +/- 176.38, N = 3SE +/- 137.69, N = 3SE +/- 45.23, N = 3SE +/- 85.70, N = 3SE +/- 219.17, N = 3SE +/- 113.77, N = 3SE +/- 917.10, N = 3SE +/- 33.60, N = 3SE +/- 109.53, N = 3SE +/- 1114.46, N = 3SE +/- 797.79, N = 453082115434115302114953115315115292517038677311472911485757529546441. (CC) gcc options: -rdynamic -std=gnu99 -O3 -ffast-math -include -lrt -laio -lm -lpthread -ldl

Flexible IO Tester

Type: Sequential Read - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory

Linux 4.15Linux 4.13OpenBenchmarking.orgMB/s, More Is BetterFlexible IO Tester 2.1.13Type: Sequential Read - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test DirectoryNoneKyberDeadlineCFQBFQ low_latencyBFQ100200300400500SE +/- 2.98, N = 3SE +/- 0.71, N = 3SE +/- 0.55, N = 3SE +/- 0.18, N = 3SE +/- 0.34, N = 3SE +/- 0.88, N = 3SE +/- 0.46, N = 3SE +/- 3.67, N = 3SE +/- 0.13, N = 3SE +/- 0.44, N = 3SE +/- 4.46, N = 3SE +/- 3.19, N = 4212.34461.75461.22459.83461.27461.18206.83347.11458.93459.44230.13218.591. (CC) gcc options: -rdynamic -std=gnu99 -O3 -ffast-math -include -lrt -laio -lm -lpthread -ldl

Flexible IO Tester

Type: Random Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory

Linux 4.15Linux 4.13OpenBenchmarking.orgIOPS, More Is BetterFlexible IO Tester 2.1.13Type: Random Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test DirectoryNoneKyberDeadlineCFQBFQ low_latencyBFQ7K14K21K28K35KSE +/- 3558.59, N = 6SE +/- 3235.11, N = 6SE +/- 3161.08, N = 6SE +/- 1035.79, N = 6SE +/- 3741.34, N = 6SE +/- 956.63, N = 6SE +/- 3.51, N = 3SE +/- 3604.38, N = 6SE +/- 3720.68, N = 6SE +/- 2644.91, N = 6SE +/- 4052.87, N = 6SE +/- 497.58, N = 615920158641489626194169768263314462684917706119532247767271. (CC) gcc options: -rdynamic -std=gnu99 -O3 -ffast-math -include -lrt -laio -lm -lpthread -ldl

Flexible IO Tester

Type: Random Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory

Linux 4.15Linux 4.13OpenBenchmarking.orgMB/s, More Is BetterFlexible IO Tester 2.1.13Type: Random Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test DirectoryNoneKyberDeadlineCFQBFQ low_latencyBFQ306090120150SE +/- 14.23, N = 6SE +/- 12.94, N = 6SE +/- 12.64, N = 6SE +/- 4.14, N = 6SE +/- 14.97, N = 6SE +/- 3.83, N = 6SE +/- 0.01, N = 3SE +/- 14.42, N = 6SE +/- 14.88, N = 6SE +/- 10.58, N = 6SE +/- 16.21, N = 6SE +/- 1.99, N = 663.6963.4759.60104.7967.9233.07125.80107.4170.8447.8389.9226.921. (CC) gcc options: -rdynamic -std=gnu99 -O3 -ffast-math -include -lrt -laio -lm -lpthread -ldl

SQLite

Test Target: Default Test Directory

Linux 4.15Linux 4.13OpenBenchmarking.orgSeconds, Fewer Is BetterSQLite 3.8.10.2Test Target: Default Test DirectoryNoneKyberDeadlineCFQBFQ low_latencyBFQ306090120150SE +/- 3.32, N = 6SE +/- 2.23, N = 6SE +/- 3.03, N = 6SE +/- 0.12, N = 3SE +/- 5.22, N = 6SE +/- 2.92, N = 6SE +/- 0.13, N = 3SE +/- 0.60, N = 3SE +/- 3.91, N = 6SE +/- 4.87, N = 6SE +/- 3.38, N = 6SE +/- 4.84, N = 6118.91115.31112.9492.04141.27130.7189.8596.56113.64112.34137.05147.261. (CC) gcc options: -O2 -ldl -lpthread

Application Start-up Time

Background I/O Type: Sequential - Background I/O mix: Reads and writes - Application to start: LibreOffice Writer

OpenBenchmarking.orgsec, Fewer Is BetterApplication Start-up Time 0.1.0Background I/O Type: Sequential - Background I/O mix: Reads and writes - Application to start: LibreOffice WriterNoneBFQ low_latency246810SE +/- 0.09, N = 3SE +/- 0.53, N = 68.413.88

Application Start-up Time

Background I/O Type: Sequential - Background I/O mix: Reads and writes - Application to start: Gnome terminal

Linux 4.15Linux 4.13OpenBenchmarking.orgsec, Fewer Is BetterApplication Start-up Time 0.1.0Background I/O Type: Sequential - Background I/O mix: Reads and writes - Application to start: Gnome terminalNoneKyberBFQ low_latency816243240SE +/- 0.57, N = 4SE +/- 2.47, N = 6SE +/- 0.03, N = 3SE +/- 0.08, N = 635.7036.904.945.240.85

Application Start-up Time

Background I/O Type: Random - Background I/O mix: Reads and writes - Application to start: LibreOffice Writer

Linux 4.15Linux 4.13OpenBenchmarking.orgsec, Fewer Is BetterApplication Start-up Time 0.1.0Background I/O Type: Random - Background I/O mix: Reads and writes - Application to start: LibreOffice WriterNoneKyberDeadlineCFQBFQ low_latencyBFQ0.5131.0261.5392.0522.565SE +/- 0.12, N = 6SE +/- 0.08, N = 6SE +/- 0.06, N = 6SE +/- 0.00, N = 3SE +/- 0.08, N = 6SE +/- 0.21, N = 6SE +/- 0.00, N = 3SE +/- 0.04, N = 6SE +/- 0.11, N = 6SE +/- 0.00, N = 3SE +/- 0.68, N = 61.671.621.560.630.711.970.861.161.480.292.28

Application Start-up Time

Background I/O Type: Sequential - Background I/O mix: Only reads - Application to start: LibreOffice Writer

Linux 4.15Linux 4.13OpenBenchmarking.orgsec, Fewer Is BetterApplication Start-up Time 0.1.0Background I/O Type: Sequential - Background I/O mix: Only reads - Application to start: LibreOffice WriterNoneKyberDeadlineCFQBFQ low_latencyBFQ246810SE +/- 0.02, N = 3SE +/- 0.28, N = 6SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.17, N = 6SE +/- 0.03, N = 3SE +/- 0.03, N = 3SE +/- 0.01, N = 3SE +/- 0.04, N = 3SE +/- 0.24, N = 65.246.245.026.390.705.414.855.384.813.30

Application Start-up Time

Background I/O Type: Random - Background I/O mix: Reads and writes - Application to start: Gnome terminal

Linux 4.15Linux 4.13OpenBenchmarking.orgsec, Fewer Is BetterApplication Start-up Time 0.1.0Background I/O Type: Random - Background I/O mix: Reads and writes - Application to start: Gnome terminalNoneKyberDeadlineCFQBFQ low_latencyBFQ0.29480.58960.88441.17921.474SE +/- 0.02, N = 3SE +/- 0.06, N = 6SE +/- 0.06, N = 6SE +/- 0.03, N = 6SE +/- 0.12, N = 6SE +/- 0.12, N = 6SE +/- 0.01, N = 3SE +/- 0.03, N = 6SE +/- 0.05, N = 6SE +/- 0.00, N = 6SE +/- 0.10, N = 61.131.021.050.360.531.310.540.770.840.160.44

Application Start-up Time

Background I/O Type: Sequential - Background I/O mix: Only reads - Application to start: Gnome terminal

Linux 4.15Linux 4.13OpenBenchmarking.orgsec, Fewer Is BetterApplication Start-up Time 0.1.0Background I/O Type: Sequential - Background I/O mix: Only reads - Application to start: Gnome terminalNoneKyberDeadlineCFQBFQ low_latencyBFQ0.8551.712.5653.424.275SE +/- 0.03, N = 3SE +/- 0.06, N = 5SE +/- 0.02, N = 3SE +/- 0.04, N = 3SE +/- 0.27, N = 6SE +/- 0.05, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.02, N = 3SE +/- 0.02, N = 6SE +/- 1.63, N = 53.563.593.203.290.963.532.832.013.442.740.263.80

Application Start-up Time

Background I/O Type: Random - Background I/O mix: Only reads - Application to start: LibreOffice Writer

Linux 4.15Linux 4.13OpenBenchmarking.orgsec, Fewer Is BetterApplication Start-up Time 0.1.0Background I/O Type: Random - Background I/O mix: Only reads - Application to start: LibreOffice WriterNoneKyberDeadlineCFQBFQ low_latencyBFQ0.11930.23860.35790.47720.5965SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 6SE +/- 0.00, N = 6SE +/- 0.00, N = 6SE +/- 0.00, N = 6SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 30.370.360.430.530.340.350.310.310.340.310.350.31

Application Start-up Time

Background I/O Type: Sequential - Background I/O mix: Reads and writes - Application to start: xterm

Linux 4.15Linux 4.13OpenBenchmarking.orgsec, Fewer Is BetterApplication Start-up Time 0.1.0Background I/O Type: Sequential - Background I/O mix: Reads and writes - Application to start: xtermNoneKyberCFQBFQ low_latencyBFQ1122334455SE +/- 0.53, N = 6SE +/- 0.47, N = 6SE +/- 0.60, N = 3SE +/- 1.68, N = 6SE +/- 3.45, N = 5SE +/- 0.00, N = 3SE +/- 1.96, N = 6SE +/- 2.30, N = 6SE +/- 0.04, N = 6SE +/- 1.21, N = 54.922.9734.7319.2248.361.383.3241.220.254.70

Phoronix Test Suite v10.8.5