zfs Intel Core i7-6500U testing with a Purism Librem 15 v3 v3.0 (4.6-a86d1b-Purism-4 BIOS) and Intel HD 520 3GB on Ubuntu 19.10 via the Phoronix Test Suite. ubuntu 19.10 with zfs: Processor: Intel Core i7-6500U @ 3.10GHz (2 Cores / 4 Threads), Motherboard: Purism Librem 15 v3 v3.0 (4.6-a86d1b-Purism-4 BIOS), Chipset: Intel Xeon E3-1200 v5/E3-1500, Memory: 16384MB, Disk: 500GB Samsung SSD 850, Graphics: Intel HD 520 3GB (1050MHz), Audio: Realtek ALC269VC, Network: Qualcomm Atheros AR9462 OS: Ubuntu 19.10, Kernel: 5.3.0-18-generic (x86_64), Desktop: GNOME Shell 3.34.1, Display Server: X Server 1.20.5, Display Driver: modesetting 1.20.5, OpenGL: 4.5 Mesa 19.2.1, Compiler: GCC 9.2.1 20191008, File-System: zfs, Screen Resolution: 1920x1080 Dbench 4.0 12 Clients MB/s > Higher Is Better ubuntu 19.10 with zfs . 412.24 |=============================================== Dbench 4.0 1 Clients MB/s > Higher Is Better ubuntu 19.10 with zfs . 64.78 |================================================ FS-Mark 3.3 Test: 4000 Files, 32 Sub Dirs, 1MB Size Files/s > Higher Is Better ubuntu 19.10 with zfs . 98.96 |================================================ PostMark 1.51 Disk Transaction Performance TPS > Higher Is Better ubuntu 19.10 with zfs . 1908 |================================================= FS-Mark 3.3 Test: 5000 Files, 1MB Size, 4 Threads Files/s > Higher Is Better ubuntu 19.10 with zfs . 176.37 |=============================================== SQLite 3.22 Timed SQLite Insertions Seconds < Lower Is Better ubuntu 19.10 with zfs . 53.87 |================================================ Compile Bench 0.6 Test: Compile MB/s > Higher Is Better ubuntu 19.10 with zfs . 998.10 |=============================================== FS-Mark 3.3 Test: 1000 Files, 1MB Size Files/s > Higher Is Better ubuntu 19.10 with zfs . 143.57 |=============================================== FS-Mark 3.3 Test: 1000 Files, 1MB Size, No Sync/FSync Files/s > Higher Is Better ubuntu 19.10 with zfs . 866.43 |=============================================== Compile Bench 0.6 Test: Read Compiled Tree MB/s > Higher Is Better ubuntu 19.10 with zfs . 814.93 |=============================================== Compile Bench 0.6 Test: Initial Create MB/s > Higher Is Better ubuntu 19.10 with zfs . 125.31 |===============================================