pts-disk KVM testing on CentOS Linux 8 via the Phoronix Test Suite. QEMU HDD: Processor: Common KVM (1 Core), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 1 x GB RAM QEMU, Disk: 9GB QEMU HDD, Graphics: bochs-drmdrmfb, Monitor: QEMU Monitor, Network: Red Hat Virtio device OS: CentOS Linux 8, Kernel: 4.18.0-193.14.2.el8_2.x86_64 (x86_64), Compiler: GCC 8.3.1 20191121, File-System: xfs, Screen Resolution: 1024x768, System Layer: KVM SQLite 3.30.1 Timed SQLite Insertions Seconds < Lower Is Better QEMU HDD . 49.54 |============================================================= Flexible IO Tester 3.18 Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better QEMU HDD . 112 |=============================================================== Flexible IO Tester 3.18 Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better QEMU HDD . 53 |================================================================ Flexible IO Tester 3.18 Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better QEMU HDD . 105 |=============================================================== Flexible IO Tester 3.18 Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better QEMU HDD . 26900 |============================================================= Flexible IO Tester 3.18 Type: Random Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better QEMU HDD . 108 |=============================================================== Flexible IO Tester 3.18 Type: Random Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better QEMU HDD . 50 |================================================================ Flexible IO Tester 3.18 Type: Random Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better QEMU HDD . 58.4 |============================================================== Flexible IO Tester 3.18 Type: Random Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better QEMU HDD . 14950 |============================================================= Flexible IO Tester 3.18 Type: Sequential Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better QEMU HDD . 112 |=============================================================== Flexible IO Tester 3.18 Type: Sequential Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better QEMU HDD . 53 |================================================================ Flexible IO Tester 3.18 Type: Sequential Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better QEMU HDD . 105 |=============================================================== Flexible IO Tester 3.18 Type: Sequential Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better QEMU HDD . 26467 |============================================================= Flexible IO Tester 3.18 Type: Sequential Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better QEMU HDD . 107 |=============================================================== Flexible IO Tester 3.18 Type: Sequential Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better QEMU HDD . 50 |================================================================ Flexible IO Tester 3.18 Type: Sequential Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better QEMU HDD . 68.9 |============================================================== Flexible IO Tester 3.18 Type: Sequential Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better QEMU HDD . 17633 |============================================================= Dbench 4.0 12 Clients MB/s > Higher Is Better QEMU HDD . 281.41 |============================================================ Dbench 4.0 1 Clients MB/s > Higher Is Better QEMU HDD . 118.13 |============================================================ PostMark 1.51 Disk Transaction Performance TPS > Higher Is Better QEMU HDD . 930 |===============================================================