pts-fsmark-gc KVM testing on Ubuntu 16.04 via the Phoronix Test Suite. PersistentDisk: Processor: Intel Xeon @ 2.50GHz (1 Core), Motherboard: Google, Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 3840 MB RAM, Disk: 54GB PersistentDisk, Network: Red Hat Virtio device OS: Ubuntu 16.04, Kernel: 4.4.0-34-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, System Layer: KVM FS-Mark 3.3 Test: 1000 Files, 1MB Size Files/s > Higher Is Better PersistentDisk . 32.92 |======================================================= FS-Mark 3.3 Test: 5000 Files, 1MB Size, 4 Threads Files/s > Higher Is Better PersistentDisk . 23.20 |======================================================= FS-Mark 3.3 Test: 4000 Files, 32 Sub Dirs, 1MB Size Files/s > Higher Is Better PersistentDisk . 22.80 |======================================================= FS-Mark 3.3 Test: 1000 Files, 1MB Size, No Sync/FSync Files/s > Higher Is Better PersistentDisk . 63.32 |=======================================================