vmsh y zfs3: Processor: Intel Core i9-10900K @ 5.30GHz (10 Cores / 20 Threads), Motherboard: Supermicro X12SCZ-TLN4F (1.0a BIOS), Chipset: Intel Comet Lake PCH, Memory: 126GB, Disk: 960GB SAMSUNG MZ7LH960, Graphics: ASPEED, Audio: Realtek ALC888-VD, Network: Intel + 2 x Mellanox MT27710 + Intel I210 + 2 x Intel 10G X550T OS: NixOS 21.05, Kernel: 5.12.14 (x86_64), Compiler: GCC 7.5.0, File-System: zfs, Screen Resolution: 1024x768 zfs4: Processor: Intel Core i9-10900K @ 5.30GHz (10 Cores / 20 Threads), Motherboard: Supermicro X12SCZ-TLN4F (1.0a BIOS), Chipset: Intel Comet Lake PCH, Memory: 126GB, Disk: 960GB SAMSUNG MZ7LH960, Graphics: ASPEED, Audio: Realtek ALC888-VD, Network: Intel + 2 x Mellanox MT27710 + Intel I210 + 2 x Intel 10G X550T OS: NixOS 21.05, Kernel: 5.12.14 (x86_64), Compiler: GCC 7.5.0, File-System: zfs, Screen Resolution: 1024x768 IOR 3.3.0 Block Size: 512MB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs3 . 1022.06 |=============================================================== zfs4 . 944.36 |========================================================== IOR 3.3.0 Block Size: 1024MB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs3 . 1206.49 |=============================================================== zfs4 . 1147.03 |============================================================ Dbench 4.0 12 Clients MB/s > Higher Is Better zfs4 . 5362.18 |=============================================================== Dbench 4.0 1 Clients MB/s > Higher Is Better zfs4 . 829.91 |================================================================ IOR 3.3.0 Block Size: 256MB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs3 . 1101.78 |=============================================================== zfs4 . 1034.11 |=========================================================== PostMark 1.51 Disk Transaction Performance TPS > Higher Is Better zfs4 . 4498 |================================================================== Flexible IO Tester 3.25 Type: Random Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better zfs4 . 168400 |================================================================ Flexible IO Tester 3.25 Type: Random Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs4 . 658 |=================================================================== Flexible IO Tester 3.25 Type: Random Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better zfs4 . 2963 |================================================================== Flexible IO Tester 3.25 Type: Random Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs4 . 5934 |================================================================== SQLite 3.30.1 Threads / Copies: 128 Seconds < Lower Is Better zfs4 . 89.11 |================================================================= SQLite 3.30.1 Threads / Copies: 32 Seconds < Lower Is Better zfs4 . 20.52 |================================================================= IOR 3.3.0 Block Size: 32MB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs3 . 1539.19 |=============================================================== zfs4 . 1496.36 |============================================================= IOR 3.3.0 Block Size: 16MB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs3 . 1475.38 |=============================================================== zfs4 . 1465.04 |=============================================================== FS-Mark 3.3 Test: 5000 Files, 1MB Size, 4 Threads Files/s > Higher Is Better zfs4 . 404.7 |================================================================= IOR 3.3.0 Block Size: 64MB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs3 . 1532.57 |=============================================================== zfs4 . 1514.16 |============================================================== Compile Bench 0.6 Test: Compile MB/s > Higher Is Better zfs4 . 1870.06 |=============================================================== Flexible IO Tester 3.25 Type: Sequential Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better zfs4 . 1544 |================================================================== Flexible IO Tester 3.25 Type: Sequential Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs4 . 3096 |================================================================== SQLite 3.30.1 Threads / Copies: 64 Seconds < Lower Is Better zfs4 . 39.41 |================================================================= Flexible IO Tester 3.25 Type: Sequential Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better zfs4 . 497667 |================================================================ Flexible IO Tester 3.25 Type: Sequential Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs4 . 1943 |================================================================== Flexible IO Tester 3.25 Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better zfs4 . 492000 |================================================================ Flexible IO Tester 3.25 Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs4 . 1923 |================================================================== Flexible IO Tester 3.25 Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better zfs4 . 4725 |================================================================== Flexible IO Tester 3.25 Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs4 . 9456 |================================================================== Flexible IO Tester 3.25 Type: Sequential Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better zfs4 . 2115 |================================================================== Flexible IO Tester 3.25 Type: Sequential Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs4 . 4237 |================================================================== Compile Bench 0.6 Test: Initial Create MB/s > Higher Is Better zfs3 . 295.31 |================================================================ zfs4 . 246.05 |===================================================== Flexible IO Tester 3.25 Type: Sequential Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better zfs4 . 279000 |================================================================ Flexible IO Tester 3.25 Type: Sequential Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs4 . 1089 |================================================================== IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better zfs3 . 46.82 |================================================================= IOR 3.3.0 Block Size: 8MB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs3 . 1439.50 |============================================================ zfs4 . 1516.42 |=============================================================== IOR 3.3.0 Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs3 . 1336.14 |=========================================================== zfs4 . 1415.20 |=============================================================== FS-Mark 3.3 Test: 4000 Files, 32 Sub Dirs, 1MB Size Files/s > Higher Is Better zfs4 . 372.3 |================================================================= SQLite 3.30.1 Threads / Copies: 8 Seconds < Lower Is Better zfs4 . 6.231 |================================================================= IOR 3.3.0 Block Size: 4MB - Disk Target: Default Test Directory MB/s > Higher Is Better zfs3 . 1526.74 |=============================================================== zfs4 . 1517.86 |=============================================================== FS-Mark 3.3 Test: 1000 Files, 1MB Size Files/s > Higher Is Better zfs4 . 340.1 |================================================================= SQLite 3.30.1 Threads / Copies: 1 Seconds < Lower Is Better zfs4 . 2.678 |================================================================= FS-Mark 3.3 Test: 1000 Files, 1MB Size, No Sync/FSync Files/s > Higher Is Better zfs4 . 3340.0 |================================================================ Compile Bench 0.6 Test: Read Compiled Tree MB/s > Higher Is Better zfs4 . 1299.01 |===============================================================