iSCSI KVM testing on Debian 10 via the Phoronix Test Suite. QEMU HDD: Processor: Intel Xeon D-1518 (8 Cores), Motherboard: QEMU Standard PC (Q35 + ICH9 2009) (rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org BIOS), Chipset: Intel 82G33/G31/P35/P31 + ICH9, Memory: 1 x 8192 MB RAM QEMU, Disk: 43GB QEMU HDD, Graphics: bochsdrmfb, Audio: Intel 82801I, Network: Red Hat Virtio device OS: Debian 10, Kernel: 4.19.0-8-amd64 (x86_64), Compiler: GCC 8.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM sync disable: Processor: Intel Xeon D-1518 (8 Cores), Motherboard: QEMU Standard PC (Q35 + ICH9 2009) (rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org BIOS), Chipset: Intel 82G33/G31/P35/P31 + ICH9, Memory: 1 x 8192 MB RAM QEMU, Disk: 43GB QEMU HDD, Graphics: bochsdrmfb, Audio: Intel 82801I, Network: Red Hat Virtio device OS: Debian 10, Kernel: 4.19.0-8-amd64 (x86_64), Compiler: GCC 8.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM local ZFS: Processor: Intel Xeon D-1518 (8 Cores), Motherboard: QEMU Standard PC (Q35 + ICH9 2009) (rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org BIOS), Chipset: Intel 82G33/G31/P35/P31 + ICH9, Memory: 1 x 8192 MB RAM QEMU, Disk: 43GB QEMU HDD, Graphics: bochsdrmfb, Audio: Intel 82801I, Network: Red Hat Virtio device OS: Debian 10, Kernel: 4.19.0-8-amd64 (x86_64), Compiler: GCC 8.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better QEMU HDD ..... 2224.34 |======================= sync disable . 5294.63 |======================================================= local ZFS .... 5302.37 |======================================================= IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better QEMU HDD ..... 1916.12 |============================== sync disable . 3546.90 |======================================================= local ZFS .... 3234.48 |================================================== IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better QEMU HDD ..... 106.13 |=============== sync disable . 406.56 |======================================================== local ZFS .... 350.33 |================================================ IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better QEMU HDD ..... 104.76 |================ sync disable . 373.40 |======================================================== local ZFS .... 323.63 |================================================= IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better QEMU HDD ..... 2246.44 |====================== sync disable . 5692.28 |======================================================= local ZFS .... 5339.72 |==================================================== IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better QEMU HDD ..... 96.54 |============== sync disable . 396.97 |======================================================== local ZFS .... 368.40 |====================================================