pgbenchh.hdd.ssd-writethrough-20Gb.423.results qemu testing on Ubuntu 16.04 via the Phoronix Test Suite. hdd.lvm.ssd.20Gb: Processor: Common KVM @ 2.40GHz (1 Core), Motherboard: QEMU Standard PC (i440FX + PIIX 1996), Chipset: Intel 440FX- 82441FX PMC, Memory: 2048MB, Disk: 54GB QEMU HDD, Graphics: LLVMpipe, Network: Red Hat Virtio device OS: Ubuntu 16.04, Kernel: 4.4.0-21-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.18.3, Display Driver: modesetting 1.18.3, OpenGL: 3.3 Mesa 11.2.0 Gallium 0.4, Compiler: GCC 5.3.1 20160413, File-System: ext4, Screen Resolution: 1024x768, System Layer: qemu PostgreSQL pgbench 9.6.3 Scaling: On-Disk - Test: Normal Load - Mode: Read Only TPS > Higher Is Better hdd.lvm.ssd.20Gb . 1101.25 |=================================================== PostgreSQL pgbench 9.6.3 Scaling: On-Disk - Test: Normal Load - Mode: Read Write TPS > Higher Is Better hdd.lvm.ssd.20Gb . 100.73 |==================================================== PostgreSQL pgbench 9.6.3 Scaling: Mostly RAM - Test: Normal Load - Mode: Read Only TPS > Higher Is Better hdd.lvm.ssd.20Gb . 7899.69 |=================================================== PostgreSQL pgbench 9.6.3 Scaling: Buffer Test - Test: Normal Load - Mode: Read Only TPS > Higher Is Better hdd.lvm.ssd.20Gb . 8660.76 |=================================================== PostgreSQL pgbench 9.6.3 Scaling: Mostly RAM - Test: Normal Load - Mode: Read Write TPS > Higher Is Better hdd.lvm.ssd.20Gb . 169.06 |==================================================== PostgreSQL pgbench 9.6.3 Scaling: Buffer Test - Test: Normal Load - Mode: Read Write TPS > Higher Is Better hdd.lvm.ssd.20Gb . 248.07 |====================================================