CentOS 7 over iSCSI KVM testing on CentOS Linux 7 via the Phoronix Test Suite. centos-vstorage-hdd-with-ssd-cache: Processor: AMD EPYC (8 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org BIOS), Memory: 1 x 8192 MB RAM QEMU, Disk: 9GB QEMU HDD OS: CentOS Linux 7, Kernel: 3.10.0-1127.18.2.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: xfs, System Layer: KVM SQLite 3.30.1 Timed SQLite Insertions Seconds < Lower Is Better centos-vstorage-hdd-with-ssd-cache . 31.41 |=================================== 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 centos-vstorage-hdd-with-ssd-cache . 1315 |==================================== 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 centos-vstorage-hdd-with-ssd-cache . 654 |===================================== 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 centos-vstorage-hdd-with-ssd-cache . 248 |===================================== 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 centos-vstorage-hdd-with-ssd-cache . 63925 |=================================== 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 centos-vstorage-hdd-with-ssd-cache . 633 |===================================== 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 centos-vstorage-hdd-with-ssd-cache . 313 |===================================== 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 centos-vstorage-hdd-with-ssd-cache . 15.37 |=================================== 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 centos-vstorage-hdd-with-ssd-cache . 3920 |==================================== 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 centos-vstorage-hdd-with-ssd-cache . 1276 |==================================== 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 centos-vstorage-hdd-with-ssd-cache . 635 |===================================== 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 centos-vstorage-hdd-with-ssd-cache . 373 |===================================== 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 centos-vstorage-hdd-with-ssd-cache . 95560 |=================================== 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 centos-vstorage-hdd-with-ssd-cache . 651 |===================================== 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 centos-vstorage-hdd-with-ssd-cache . 321 |===================================== 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 centos-vstorage-hdd-with-ssd-cache . 17.83 |=================================== 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 centos-vstorage-hdd-with-ssd-cache . 4541 |==================================== FS-Mark 3.3 Test: 1000 Files, 1MB Size Files/s > Higher Is Better centos-vstorage-hdd-with-ssd-cache . 246.2 |===================================