lowmemory 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. lowmemoryzfs: 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: 8192MB, Disk: 500GB Samsung SSD 850, Graphics: Intel HD 520 3GB (1050MHz), Audio: Realtek ALC269VC, Network: Qualcomm Atheros AR9462 OS: Ubuntu 19.10, Kernel: 5.3.0-19-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 SQLite 3.22 Timed SQLite Insertions Seconds < Lower Is Better lowmemoryzfs . 49.43 |========================================================= FS-Mark 3.3 Test: 1000 Files, 1MB Size Files/s > Higher Is Better lowmemoryzfs . 148.70 |======================================================== FS-Mark 3.3 Test: 5000 Files, 1MB Size, 4 Threads Files/s > Higher Is Better lowmemoryzfs . 164.16 |======================================================== FS-Mark 3.3 Test: 4000 Files, 32 Sub Dirs, 1MB Size Files/s > Higher Is Better lowmemoryzfs . 112.57 |======================================================== FS-Mark 3.3 Test: 1000 Files, 1MB Size, No Sync/FSync Files/s > Higher Is Better lowmemoryzfs . 814.63 |======================================================== Dbench 4.0 12 Clients MB/s > Higher Is Better lowmemoryzfs . 318.93 |======================================================== Dbench 4.0 1 Clients MB/s > Higher Is Better lowmemoryzfs . 65.81 |========================================================= Compile Bench 0.6 Test: Compile MB/s > Higher Is Better lowmemoryzfs . 971.08 |======================================================== Compile Bench 0.6 Test: Initial Create MB/s > Higher Is Better lowmemoryzfs . 126.32 |======================================================== Compile Bench 0.6 Test: Read Compiled Tree MB/s > Higher Is Better lowmemoryzfs . 808.88 |======================================================== PostMark 1.51 Disk Transaction Performance TPS > Higher Is Better lowmemoryzfs . 1794 |==========================================================