testRandomWrite Random Write Random Write: Processor: Intel Xeon E5-2687W v4 @ 3.50GHz (24 Cores), Motherboard: Supermicro X10SRA-F v1.01, Chipset: Intel Xeon E7 v4/Xeon, Memory: 7.875 x 32768 MB DDR4-2400MHz, Disk: 500GB Seagate ST500LM021-1KJ15, Graphics: ASPEED ASPEED Family, Audio: Realtek ALC1150, Network: Intel 10-Gigabit X540-AT2 OS: Ubuntu 16.04, Kernel: 4.4.0-98-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: zfs, Screen Resolution: 1024x768 Threaded I/O Tester 20170503 Test: Random Write - Size Per Thread: 256MB - Thread Count: 4 MB/s > Higher Is Better Random Write . 25.43 |=========================================================