NVME_SINGLE_ZFS_DEFAULT 2 x Intel Xeon E5-2680 v4 testing with a HP ProLiant DL380 Gen9 (P89 BIOS) and Matrox MGA G200EH on Ubuntu 20.04 via the Phoronix Test Suite. NVME_SINGLE_ZFS_DEFAULT: Processor: 2 x Intel Xeon E5-2680 v4 @ 3.30GHz (28 Cores / 56 Threads), Motherboard: HP ProLiant DL380 Gen9 (P89 BIOS), Chipset: Intel Xeon E7 v4/Xeon, Memory: 190GB, Disk: 4 x 2000GB VO002000KWJSF + 500GB LOGICAL VOLUME, Graphics: Matrox MGA G200EH, Monitor: Smart Cable, Network: 4 x Broadcom NetXtreme BCM5719 PCIe OS: Ubuntu 20.04, Kernel: 5.4.0-47-generic (x86_64), Compiler: GCC 9.3.0, File-System: zfs, Screen Resolution: 1024x768 Flexible IO Tester 3.18 Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 8KB - Disk Target: /NVME MB/s > Higher Is Better NVME_SINGLE_ZFS_DEFAULT . 1249 |=============================================== Flexible IO Tester 3.18 Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 8KB - Disk Target: /NVME IOPS > Higher Is Better NVME_SINGLE_ZFS_DEFAULT . 159667 |=============================================