try to find the best setup for postgres over the dm-cache-bcache-btrfs-zfs field
HTML result view exported from: https://openbenchmarking.org/result/1706273-ASVA-170620110.
fastd_1ProcessorMotherboardChipsetMemoryDiskGraphicsAudioNetworkOSKernelDesktopDisplay ServerDisplay DriverCompilerFile-SystemScreen Resolutionlvm io_default ext4 defaultsbcache io_default ext4 defaultslvm io_default ext4 data=writeback,noatime,barrier=0,discardbcache io_default ext4 data=writeback,noatime,barrier=0,discardlvm io_tuned ext4 data=writeback,noatime,barrier=0,discardbcache io_tuned ext4 data=writeback,noatime,barrier=0,discardlvm io_default zfsbcache io_default zfslvm io_default zfs lz4 512k throughput metadatabcache io_default zfs lz4 512k throughput metadatalvm io_default zfs lz4 32k throughput allbcache io_default zfs lz4 32k throughput alllvm io_default zfs lz4 32k throughput metadatabcache io_default zfs lz4 32k throughput metadatalvm io_default zfs lz4 32k throughput metadata disabledbcache io_default zfs lz4 32k throughput metadata disabledlvm io_tuned zfs lz4 32k throughput metadata disabledbcache io_tuned zfs lz4 32k throughput metadata disabledlvm io_default btrfs defaultsbcache io_default btrfs defaultsxl00xl00 - 2xl00 - 3Intel Core i5-4590 @ 3.70GHz (4 Cores)MSI Z97-G43 (MS-7816) v3.0Intel 4th Gen Core DRAM2048MB2 x 4001GB Western Digital WD40EFRX-68W + 240GB ADATA SP550 + 240GB INTEL SSDSC2BW24Intel HD 4600 (1150MHz)Intel Xeon E3-1200 v3/4thRealtek RTL8111/8168/8411Ubuntu 16.044.4.0-21-generic (x86_64)Xfce 4.12X Server 1.18.3intel 2.99.917GCC 5.4.0 20160609overlayfs2560x1440Intel Core i7-4770 @ 3.90GHz (8 Cores)MSI H87-G43 (MS-7816) v1.032768MB2 x 240GB INTEL SSDSC2BW24 + 2 x 2000GB Western Digital WD2000FYYZ-0Intel Xeon E3-1200 v3/4th Gen Core IGPDebian 8.84.9.0-0.bpo.3-amd64 (x86_64)GCC 4.9.2btrfsOpenBenchmarking.orgCompiler Details- lvm io_default ext4 defaults: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- bcache io_default ext4 defaults: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- lvm io_default ext4 data=writeback,noatime,barrier=0,discard: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- bcache io_default ext4 data=writeback,noatime,barrier=0,discard: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- lvm io_tuned ext4 data=writeback,noatime,barrier=0,discard: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- bcache io_tuned ext4 data=writeback,noatime,barrier=0,discard: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- lvm io_default zfs: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- bcache io_default zfs: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- lvm io_default zfs lz4 512k throughput metadata: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- bcache io_default zfs lz4 512k throughput metadata: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- lvm io_default zfs lz4 32k throughput all: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- bcache io_default zfs lz4 32k throughput all: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- lvm io_default zfs lz4 32k throughput metadata: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- bcache io_default zfs lz4 32k throughput metadata: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- lvm io_default zfs lz4 32k throughput metadata disabled: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- bcache io_default zfs lz4 32k throughput metadata disabled: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- lvm io_tuned zfs lz4 32k throughput metadata disabled: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- bcache io_tuned zfs lz4 32k throughput metadata disabled: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- lvm io_default btrfs defaults: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- bcache io_default btrfs defaults: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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,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 --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-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- xl00: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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-multilib --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=i586 --with-arch-directory=amd64 --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- xl00 - 2: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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-multilib --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=i586 --with-arch-directory=amd64 --with-multilib-list=m32,m64,mx32 --with-tune=generic -v- xl00 - 3: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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-multilib --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=i586 --with-arch-directory=amd64 --with-multilib-list=m32,m64,mx32 --with-tune=generic -vDisk Details- lvm io_default ext4 defaults: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- bcache io_default ext4 defaults: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- lvm io_default ext4 data=writeback,noatime,barrier=0,discard: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- bcache io_default ext4 data=writeback,noatime,barrier=0,discard: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- lvm io_tuned ext4 data=writeback,noatime,barrier=0,discard: DEADLINE / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- bcache io_tuned ext4 data=writeback,noatime,barrier=0,discard: DEADLINE / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- lvm io_default zfs: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- bcache io_default zfs: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- lvm io_default zfs lz4 512k throughput metadata: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- bcache io_default zfs lz4 512k throughput metadata: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- lvm io_default zfs lz4 32k throughput all: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- bcache io_default zfs lz4 32k throughput all: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- lvm io_default zfs lz4 32k throughput metadata: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- bcache io_default zfs lz4 32k throughput metadata: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- lvm io_default zfs lz4 32k throughput metadata disabled: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- bcache io_default zfs lz4 32k throughput metadata disabled: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- lvm io_tuned zfs lz4 32k throughput metadata disabled: DEADLINE / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- bcache io_tuned zfs lz4 32k throughput metadata disabled: DEADLINE / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- lvm io_default btrfs defaults: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- bcache io_default btrfs defaults: CFQ / lowerdir=//filesystem.squashfs,relatime,rw,upperdir=/cow/upper,workdir=/cow/work- xl00: CFQ / compress-force=zlib,discard,nobarrier,relatime,rw,space_cache,subvol=/,subvolid=5- xl00 - 2: CFQ / compress-force=zlib,discard,nobarrier,relatime,rw,space_cache,subvol=/,subvolid=5- xl00 - 3: CFQ / compress-force=zlib,discard,nobarrier,relatime,rw,space_cache,subvol=/,subvolid=5Processor Details- Scaling Governor: intel_pstate powersave
fastd_1aio-stress: Rand WriteDifferenceStandard ErrorStandard Deviationlvm io_default ext4 defaultsbcache io_default ext4 defaultslvm io_default ext4 data=writeback,noatime,barrier=0,discardbcache io_default ext4 data=writeback,noatime,barrier=0,discardlvm io_tuned ext4 data=writeback,noatime,barrier=0,discardbcache io_tuned ext4 data=writeback,noatime,barrier=0,discardlvm io_default zfsbcache io_default zfslvm io_default zfs lz4 512k throughput metadatabcache io_default zfs lz4 512k throughput metadatalvm io_default zfs lz4 32k throughput allbcache io_default zfs lz4 32k throughput alllvm io_default zfs lz4 32k throughput metadatabcache io_default zfs lz4 32k throughput metadatalvm io_default zfs lz4 32k throughput metadata disabledbcache io_default zfs lz4 32k throughput metadata disabledlvm io_tuned zfs lz4 32k throughput metadata disabledbcache io_tuned zfs lz4 32k throughput metadata disabledlvm io_default btrfs defaultsbcache io_default btrfs defaultsxl00xl00 - 2xl00 - 3126.3927.36x62.97122.04%37.698.16x0.583.47%46.3010.02x2.4512.95%32.296.99x0.634.78%48.3810.47x3.2716.54%34.627.49x0.201.01%11.262.44x0.5612.14%4.621.00x0.8444.52%125.6327.19x12.0423.48%95.8520.75x12.3431.53%442.6995.82x65.2136.08%375.4781.27x55.3636.12%614.56133.02x9.243.68%325.9370.55x41.3431.07%610.49132.14x8.503.41%322.0269.70x46.0235.01%620.75134.36x10.722.99%385.1983.37x55.8135.49%66.4414.38x3.4012.55%76.8916.64x1.343.01%4912.181063.24x37.871.34%4522.60978.92x162.738.81%4604.55996.66x142.157.56%OpenBenchmarking.org
OpenBenchmarking.orgMB/s, More Is BetterAIO-Stress 0.21Test: Random Writelvm io_default ext4 defaultsbcache io_default ext4 defaultslvm io_default ext4 data=writeback,noatime,barrier=0,discardbcache io_default ext4 data=writeback,noatime,barrier=0,discardlvm io_tuned ext4 data=writeback,noatime,barrier=0,discardbcache io_tuned ext4 data=writeback,noatime,barrier=0,discardlvm io_default zfsbcache io_default zfslvm io_default zfs lz4 512k throughput metadatabcache io_default zfs lz4 512k throughput metadatalvm io_default zfs lz4 32k throughput allbcache io_default zfs lz4 32k throughput alllvm io_default zfs lz4 32k throughput metadatabcache io_default zfs lz4 32k throughput metadatalvm io_default zfs lz4 32k throughput metadata disabledbcache io_default zfs lz4 32k throughput metadata disabledlvm io_tuned zfs lz4 32k throughput metadata disabledbcache io_tuned zfs lz4 32k throughput metadata disabledlvm io_default btrfs defaultsbcache io_default btrfs defaultsxl00xl00 - 2xl00 - 311002200330044005500SE +/- 62.97, N = 6SE +/- 0.58, N = 5SE +/- 2.45, N = 6SE +/- 0.63, N = 6SE +/- 3.27, N = 6SE +/- 0.20, N = 3SE +/- 0.56, N = 6SE +/- 0.84, N = 6SE +/- 12.04, N = 6SE +/- 12.34, N = 6SE +/- 65.21, N = 6SE +/- 55.36, N = 6SE +/- 9.24, N = 6SE +/- 41.34, N = 6SE +/- 8.50, N = 6SE +/- 46.02, N = 6SE +/- 10.72, N = 3SE +/- 55.81, N = 6SE +/- 3.40, N = 6SE +/- 1.34, N = 3SE +/- 37.87, N = 3SE +/- 162.73, N = 6SE +/- 142.15, N = 6126.3937.6946.3032.2948.3834.6211.264.62125.6395.85442.69375.47614.56325.93610.49322.02620.75385.1966.4476.894912.184522.604604.551. (CC) gcc options: -pthread -laio
Phoronix Test Suite v10.8.4