SLOG Experiments AMD Ryzen 5 3600XT 6-Core testing with a Gigabyte B550M DS3H (F11 BIOS) and NVIDIA GeForce GTX 1660 SUPER 6GB on Linuxmint 20.1 via the Phoronix Test Suite. SATA Disk: Processor: AMD Ryzen 5 3600XT 6-Core @ 3.80GHz (6 Cores / 12 Threads), Motherboard: Gigabyte B550M DS3H (F11 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: 500GB Western Digital WDS500G2B0C-00PXH0 + 2000GB Western Digital WDS200T2B0C-00PXH0 + 256GB Samsung SSD 850 + 2 x 128GB SAMSUNG SSD 830 + 500GB Seagate ST500LM012 HN-M5, Graphics: NVIDIA GeForce GTX 1660 SUPER 6GB, Audio: NVIDIA TU116 HD Audio, Network: Realtek RTL8111/8168/8411 OS: Linuxmint 20.1, Kernel: 5.4.0-66-generic (x86_64), Desktop: Xfce, Display Server: X Server 1.20.9, Display Driver: NVIDIA, Vulkan: 1.2.155, Compiler: GCC 9.3.0, File-System: zfs, Screen Resolution: 1024x768 SATA Disk sync disabled: Processor: AMD Ryzen 5 3600XT 6-Core @ 3.80GHz (6 Cores / 12 Threads), Motherboard: Gigabyte B550M DS3H (F11 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: 500GB Western Digital WDS500G2B0C-00PXH0 + 2000GB Western Digital WDS200T2B0C-00PXH0 + 256GB Samsung SSD 850 + 2 x 128GB SAMSUNG SSD 830 + 500GB Seagate ST500LM012 HN-M5, Graphics: NVIDIA GeForce GTX 1660 SUPER 6GB, Audio: NVIDIA TU116 HD Audio, Network: Realtek RTL8111/8168/8411 OS: Linuxmint 20.1, Kernel: 5.4.0-66-generic (x86_64), Desktop: Xfce, Display Server: X Server 1.20.9, Display Driver: NVIDIA, Vulkan: 1.2.155, Compiler: GCC 9.3.0, File-System: zfs, Screen Resolution: 1024x768 SATA Disk SLOG on SSD: Processor: AMD Ryzen 5 3600XT 6-Core @ 3.80GHz (6 Cores / 12 Threads), Motherboard: Gigabyte B550M DS3H (F11 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: 500GB Western Digital WDS500G2B0C-00PXH0 + 2000GB Western Digital WDS200T2B0C-00PXH0 + 256GB Samsung SSD 850 + 2 x 128GB SAMSUNG SSD 830 + 500GB Seagate ST500LM012 HN-M5, Graphics: NVIDIA GeForce GTX 1660 SUPER 6GB, Audio: NVIDIA TU116 HD Audio, Network: Realtek RTL8111/8168/8411 OS: Linuxmint 20.1, Kernel: 5.4.0-66-generic (x86_64), Desktop: Xfce, Display Server: X Server 1.20.9, Display Driver: NVIDIA, Vulkan: 1.2.155, Compiler: GCC 9.3.0, File-System: zfs, Screen Resolution: 1024x768 SATA Disk SLOG on RAM: Processor: AMD Ryzen 5 3600XT 6-Core @ 3.80GHz (6 Cores / 12 Threads), Motherboard: Gigabyte B550M DS3H (F11 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: 500GB Western Digital WDS500G2B0C-00PXH0 + 2000GB Western Digital WDS200T2B0C-00PXH0 + 256GB Samsung SSD 850 + 2 x 128GB SAMSUNG SSD 830 + 500GB Seagate ST500LM012 HN-M5, Graphics: NVIDIA GeForce GTX 1660 SUPER 6GB, Audio: NVIDIA TU116 HD Audio, Network: Realtek RTL8111/8168/8411 OS: Linuxmint 20.1, Kernel: 5.4.0-66-generic (x86_64), Desktop: Xfce, Display Server: X Server 1.20.9, Display Driver: NVIDIA, Vulkan: 1.2.155, Compiler: GCC 9.3.0, File-System: zfs, Screen Resolution: 1024x768 SATA Disk SLOG on RAM sync always: Processor: AMD Ryzen 5 3600XT 6-Core @ 3.80GHz (6 Cores / 12 Threads), Motherboard: Gigabyte B550M DS3H (F11 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: 500GB Western Digital WDS500G2B0C-00PXH0 + 2000GB Western Digital WDS200T2B0C-00PXH0 + 256GB Samsung SSD 850 + 2 x 128GB SAMSUNG SSD 830 + 500GB Seagate ST500LM012 HN-M5, Graphics: NVIDIA GeForce GTX 1660 SUPER 6GB, Audio: NVIDIA TU116 HD Audio, Network: Realtek RTL8111/8168/8411 OS: Linuxmint 20.1, Kernel: 5.4.0-66-generic (x86_64), Desktop: Xfce, Display Server: X Server 1.20.9, Display Driver: NVIDIA, Vulkan: 1.2.155, Compiler: GCC 9.3.0, File-System: zfs, Screen Resolution: 1024x768 SATA SSD: Processor: AMD Ryzen 5 3600XT 6-Core @ 3.80GHz (6 Cores / 12 Threads), Motherboard: Gigabyte B550M DS3H (F11 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: 500GB Western Digital WDS500G2B0C-00PXH0 + 2000GB Western Digital WDS200T2B0C-00PXH0 + 256GB Samsung SSD 850 + 2 x 128GB SAMSUNG SSD 830 + 500GB Seagate ST500LM012 HN-M5, Graphics: NVIDIA GeForce GTX 1660 SUPER 6GB, Audio: NVIDIA TU116 HD Audio, Network: Realtek RTL8111/8168/8411 OS: Linuxmint 20.1, Kernel: 5.4.0-66-generic (x86_64), Desktop: Xfce, Display Server: X Server 1.20.9, Display Driver: NVIDIA, Vulkan: 1.2.155, Compiler: GCC 9.3.0, File-System: zfs, Screen Resolution: 1024x768 SATA Disk write cache off: Processor: AMD Ryzen 5 3600XT 6-Core @ 3.80GHz (6 Cores / 12 Threads), Motherboard: Gigabyte B550M DS3H (F11 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: 500GB Western Digital WDS500G2B0C-00PXH0 + 2000GB Western Digital WDS200T2B0C-00PXH0 + 256GB Samsung SSD 850 + 2 x 128GB SAMSUNG SSD 830 + 500GB Seagate ST500LM012 HN-M5, Graphics: NVIDIA GeForce GTX 1660 SUPER 6GB (585/405MHz), Audio: NVIDIA TU116 HD Audio, Monitor: PB248, Network: Realtek RTL8111/8168/8411 OS: Linuxmint 20.1, Kernel: 5.4.0-66-generic (x86_64), Desktop: Xfce 4.14, Display Server: X Server 1.20.9, Display Driver: NVIDIA 460.39, OpenGL: 4.6.0, Vulkan: 1.2.155, Compiler: GCC 9.3.0, File-System: zfs, Screen Resolution: 1920x1200 RAM Disk: Processor: AMD Ryzen 5 3600XT 6-Core @ 3.80GHz (6 Cores / 12 Threads), Motherboard: Gigabyte B550M DS3H (F11 BIOS), Chipset: AMD Starship/Matisse, Memory: 16GB, Disk: 500GB Western Digital WDS500G2B0C-00PXH0 + 2000GB Western Digital WDS200T2B0C-00PXH0 + 256GB Samsung SSD 850 + 2 x 128GB SAMSUNG SSD 830 + 500GB Seagate ST500LM012 HN-M5, Graphics: NVIDIA GeForce GTX 1660 SUPER 6GB, Audio: NVIDIA TU116 HD Audio, Monitor: PB248, Network: Realtek RTL8111/8168/8411 OS: Linuxmint 20.1, Kernel: 5.4.0-66-generic (x86_64), Desktop: Xfce 4.14, Display Server: X Server 1.20.9, Display Driver: NVIDIA 460.39, Vulkan: 1.2.155, Compiler: GCC 9.3.0, File-System: zfs, Screen Resolution: 1024x768 Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 3802 |===================================== SATA Disk sync disabled ........... 3842 |===================================== SATA Disk SLOG on SSD ............. 3803 |===================================== SATA Disk SLOG on RAM ............. 3828 |===================================== SATA Disk SLOG on RAM sync always . 3852 |===================================== SATA SSD .......................... 3790 |==================================== SATA Disk write cache off ......... 3827 |===================================== RAM Disk .......................... 3776 |==================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 1897 |===================================== SATA Disk sync disabled ........... 1918 |===================================== SATA Disk SLOG on SSD ............. 1898 |===================================== SATA Disk SLOG on RAM ............. 1911 |===================================== SATA Disk SLOG on RAM sync always . 1922 |===================================== SATA SSD .......................... 1891 |==================================== SATA Disk write cache off ......... 1910 |===================================== RAM Disk .......................... 1884 |==================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 245 |====================================== SATA Disk sync disabled ........... 244 |===================================== SATA Disk SLOG on SSD ............. 248 |====================================== SATA Disk SLOG on RAM ............. 245 |====================================== SATA Disk SLOG on RAM sync always . 228 |=================================== SATA SSD .......................... 224 |================================== SATA Disk write cache off ......... 244 |===================================== RAM Disk .......................... 236 |==================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 62633 |==================================== SATA Disk sync disabled ........... 62500 |==================================== SATA Disk SLOG on SSD ............. 63367 |==================================== SATA Disk SLOG on RAM ............. 62667 |==================================== SATA Disk SLOG on RAM sync always . 58367 |================================= SATA SSD .......................... 57333 |================================= SATA Disk write cache off ......... 62600 |==================================== RAM Disk .......................... 60500 |================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 3839 |===================================== SATA Disk sync disabled ........... 3830 |===================================== SATA Disk SLOG on SSD ............. 3758 |==================================== SATA Disk SLOG on RAM ............. 3835 |===================================== SATA Disk SLOG on RAM sync always . 3850 |===================================== SATA SSD .......................... 3756 |==================================== SATA Disk write cache off ......... 3816 |===================================== RAM Disk .......................... 3791 |==================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 1916 |===================================== SATA Disk sync disabled ........... 1911 |===================================== SATA Disk SLOG on SSD ............. 1875 |==================================== SATA Disk SLOG on RAM ............. 1914 |===================================== SATA Disk SLOG on RAM sync always . 1921 |===================================== SATA SSD .......................... 1875 |==================================== SATA Disk write cache off ......... 1905 |===================================== RAM Disk .......................... 1892 |==================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 246 |====================================== SATA Disk sync disabled ........... 244 |====================================== SATA Disk SLOG on SSD ............. 246 |====================================== SATA Disk SLOG on RAM ............. 246 |====================================== SATA Disk SLOG on RAM sync always . 228 |=================================== SATA SSD .......................... 221 |================================== SATA Disk write cache off ......... 246 |====================================== RAM Disk .......................... 237 |===================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 63000 |==================================== SATA Disk sync disabled ........... 62533 |==================================== SATA Disk SLOG on SSD ............. 63000 |==================================== SATA Disk SLOG on RAM ............. 62867 |==================================== SATA Disk SLOG on RAM sync always . 58433 |================================= SATA SSD .......................... 56567 |================================ SATA Disk write cache off ......... 63067 |==================================== RAM Disk .......................... 60767 |=================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: Yes - Direct: No - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 3405 |===================================== SATA Disk sync disabled ........... 3427 |===================================== SATA Disk SLOG on SSD ............. 3445 |===================================== SATA Disk SLOG on RAM ............. 3428 |===================================== SATA Disk SLOG on RAM sync always . 3432 |===================================== SATA SSD .......................... 3370 |==================================== SATA Disk write cache off ......... 3406 |===================================== RAM Disk .......................... 3372 |==================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: Yes - Direct: No - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 1699 |===================================== SATA Disk sync disabled ........... 1710 |===================================== SATA Disk SLOG on SSD ............. 1719 |===================================== SATA Disk SLOG on RAM ............. 1710 |===================================== SATA Disk SLOG on RAM sync always . 1713 |===================================== SATA SSD .......................... 1681 |==================================== SATA Disk write cache off ......... 1699 |===================================== RAM Disk .......................... 1682 |==================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: Yes - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 243 |====================================== SATA Disk sync disabled ........... 243 |====================================== SATA Disk SLOG on SSD ............. 246 |====================================== SATA Disk SLOG on RAM ............. 241 |===================================== SATA Disk SLOG on RAM sync always . 226 |=================================== SATA SSD .......................... 220 |================================== SATA Disk write cache off ......... 242 |===================================== RAM Disk .......................... 237 |===================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: Yes - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 62133 |==================================== SATA Disk sync disabled ........... 62333 |==================================== SATA Disk SLOG on SSD ............. 62667 |==================================== SATA Disk SLOG on RAM ............. 61800 |==================================== SATA Disk SLOG on RAM sync always . 57933 |================================= SATA SSD .......................... 56200 |================================ SATA Disk write cache off ......... 61567 |=================================== RAM Disk .......................... 60600 |=================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 259 |====== SATA Disk sync disabled ........... 217 |===== SATA Disk SLOG on SSD ............. 240 |===== SATA Disk SLOG on RAM ............. 254 |====== SATA Disk SLOG on RAM sync always . 130 |=== SATA SSD .......................... 654 |=============== SATA Disk write cache off ......... 245 |===== RAM Disk .......................... 1654 |===================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 125 |====== SATA Disk sync disabled ........... 105 |===== SATA Disk SLOG on SSD ............. 117 |===== SATA Disk SLOG on RAM ............. 123 |====== SATA Disk SLOG on RAM sync always . 61 |=== SATA SSD .......................... 323 |=============== SATA Disk write cache off ......... 119 |===== RAM Disk .......................... 824 |====================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 10.870 |===== SATA Disk sync disabled ........... 9.298 |===== SATA Disk SLOG on SSD ............. 11.355 |====== SATA Disk SLOG on RAM ............. 11.267 |====== SATA Disk SLOG on RAM sync always . 8.666 |==== SATA SSD .......................... 54.500 |=========================== SATA Disk write cache off ......... 11.223 |====== RAM Disk .......................... 69.600 |=================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 2778 |====== SATA Disk sync disabled ........... 2334 |===== SATA Disk SLOG on SSD ............. 2918 |====== SATA Disk SLOG on RAM ............. 2875 |====== SATA Disk SLOG on RAM sync always . 2163 |==== SATA SSD .......................... 13000 |========================== SATA Disk write cache off ......... 2893 |====== RAM Disk .......................... 17800 |==================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: Yes - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 3415 |===================================== SATA Disk sync disabled ........... 3454 |===================================== SATA Disk SLOG on SSD ............. 3419 |===================================== SATA Disk SLOG on RAM ............. 3426 |===================================== SATA Disk SLOG on RAM sync always . 3413 |===================================== SATA SSD .......................... 3433 |===================================== SATA Disk write cache off ......... 3409 |===================================== RAM Disk .......................... 3423 |===================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: Yes - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 1704 |===================================== SATA Disk sync disabled ........... 1723 |===================================== SATA Disk SLOG on SSD ............. 1706 |===================================== SATA Disk SLOG on RAM ............. 1709 |===================================== SATA Disk SLOG on RAM sync always . 1703 |===================================== SATA SSD .......................... 1713 |===================================== SATA Disk write cache off ......... 1701 |===================================== RAM Disk .......................... 1708 |===================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: Yes - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 240 |===================================== SATA Disk sync disabled ........... 245 |====================================== SATA Disk SLOG on SSD ............. 239 |===================================== SATA Disk SLOG on RAM ............. 242 |====================================== SATA Disk SLOG on RAM sync always . 210 |================================= SATA SSD .......................... 218 |================================== SATA Disk write cache off ......... 242 |====================================== RAM Disk .......................... 242 |====================================== Flexible IO Tester 3.25 Type: Random Read - Engine: Linux AIO - Buffered: Yes - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 61400 |=================================== SATA Disk sync disabled ........... 62567 |==================================== SATA Disk SLOG on SSD ............. 61200 |=================================== SATA Disk SLOG on RAM ............. 61867 |==================================== SATA Disk SLOG on RAM sync always . 53633 |=============================== SATA SSD .......................... 55800 |================================ SATA Disk write cache off ......... 61900 |==================================== RAM Disk .......................... 61500 |=================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 218 |===== SATA Disk sync disabled ........... 218 |===== SATA Disk SLOG on SSD ............. 260 |====== SATA Disk SLOG on RAM ............. 252 |====== SATA Disk SLOG on RAM sync always . 130 |=== SATA SSD .......................... 655 |=============== SATA Disk write cache off ......... 251 |====== RAM Disk .......................... 1650 |===================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 105 |===== SATA Disk sync disabled ........... 106 |===== SATA Disk SLOG on SSD ............. 126 |====== SATA Disk SLOG on RAM ............. 123 |====== SATA Disk SLOG on RAM sync always . 61 |=== SATA SSD .......................... 324 |=============== SATA Disk write cache off ......... 122 |====== RAM Disk .......................... 821 |====================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 10.188 |===== SATA Disk sync disabled ........... 8.784 |==== SATA Disk SLOG on SSD ............. 11.700 |====== SATA Disk SLOG on RAM ............. 11.400 |====== SATA Disk SLOG on RAM sync always . 8.745 |==== SATA SSD .......................... 54.500 |============================ SATA Disk write cache off ......... 10.640 |===== RAM Disk .......................... 69.200 |=================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 2601 |===== SATA Disk sync disabled ........... 2192 |==== SATA Disk SLOG on SSD ............. 2990 |====== SATA Disk SLOG on RAM ............. 2928 |====== SATA Disk SLOG on RAM sync always . 2183 |==== SATA SSD .......................... 13900 |============================ SATA Disk write cache off ......... 2726 |====== RAM Disk .......................... 17700 |==================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: Yes - Direct: No - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 211 |===== SATA Disk sync disabled ........... 214 |===== SATA Disk SLOG on SSD ............. 260 |====== SATA Disk SLOG on RAM ............. 243 |====== SATA Disk SLOG on RAM sync always . 131 |=== SATA SSD .......................... 653 |=============== SATA Disk write cache off ......... 239 |===== RAM Disk .......................... 1627 |===================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: Yes - Direct: No - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 102 |===== SATA Disk sync disabled ........... 103 |===== SATA Disk SLOG on SSD ............. 126 |====== SATA Disk SLOG on RAM ............. 118 |====== SATA Disk SLOG on RAM sync always . 62 |=== SATA SSD .......................... 323 |=============== SATA Disk write cache off ......... 116 |===== RAM Disk .......................... 810 |====================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: Yes - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 9.929 |===== SATA Disk sync disabled ........... 8.470 |==== SATA Disk SLOG on SSD ............. 11.600 |====== SATA Disk SLOG on RAM ............. 11.200 |====== SATA Disk SLOG on RAM sync always . 8.301 |==== SATA SSD .......................... 54.400 |============================ SATA Disk write cache off ......... 10.880 |====== RAM Disk .......................... 69.200 |=================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: Yes - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 2515 |===== SATA Disk sync disabled ........... 2114 |==== SATA Disk SLOG on SSD ............. 2976 |====== SATA Disk SLOG on RAM ............. 2879 |====== SATA Disk SLOG on RAM sync always . 2072 |==== SATA SSD .......................... 13900 |============================ SATA Disk write cache off ......... 2773 |====== RAM Disk .......................... 17700 |==================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: Yes - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 205 |===== SATA Disk sync disabled ........... 222 |===== SATA Disk SLOG on SSD ............. 257 |====== SATA Disk SLOG on RAM ............. 251 |====== SATA Disk SLOG on RAM sync always . 133 |=== SATA SSD .......................... 659 |=============== SATA Disk write cache off ......... 244 |====== RAM Disk .......................... 1626 |===================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: Yes - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 99 |===== SATA Disk sync disabled ........... 107 |===== SATA Disk SLOG on SSD ............. 125 |====== SATA Disk SLOG on RAM ............. 122 |====== SATA Disk SLOG on RAM sync always . 63 |=== SATA SSD .......................... 326 |=============== SATA Disk write cache off ......... 118 |====== RAM Disk .......................... 809 |====================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: Yes - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better SATA Disk ......................... 9.984 |===== SATA Disk sync disabled ........... 10.182 |===== SATA Disk SLOG on SSD ............. 11.350 |====== SATA Disk SLOG on RAM ............. 10.874 |====== SATA Disk SLOG on RAM sync always . 8.616 |==== SATA SSD .......................... 54.400 |============================ SATA Disk write cache off ......... 9.939 |===== RAM Disk .......................... 69.000 |=================================== Flexible IO Tester 3.25 Type: Random Write - Engine: Linux AIO - Buffered: Yes - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better SATA Disk ......................... 2532 |===== SATA Disk sync disabled ........... 2592 |===== SATA Disk SLOG on SSD ............. 2899 |====== SATA Disk SLOG on RAM ............. 2773 |====== SATA Disk SLOG on RAM sync always . 2150 |==== SATA SSD .......................... 13900 |============================ SATA Disk write cache off ......... 2481 |===== RAM Disk .......................... 17667 |==================================== FS-Mark 3.3 Test: 1000 Files, 1MB Size Files/s > Higher Is Better SATA Disk ......................... 15.3 |= SATA Disk sync disabled ........... 98.8 |====== SATA Disk SLOG on SSD ............. 90.8 |===== SATA Disk SLOG on RAM ............. 132.8 |======== SATA Disk SLOG on RAM sync always . 107.1 |====== SATA SSD .......................... 83.2 |===== SATA Disk write cache off ......... 16.3 |= RAM Disk .......................... 620.1 |==================================== FS-Mark 3.3 Test: 1000 Files, 1MB Size, No Sync/FSync Files/s > Higher Is Better SATA Disk ......................... 134.4 |==== SATA Disk sync disabled ........... 85.1 |== SATA Disk SLOG on SSD ............. 164.4 |==== SATA Disk SLOG on RAM ............. 142.5 |==== SATA Disk SLOG on RAM sync always . 257.0 |======= SATA SSD .......................... 1335.3 |=================================== SATA Disk write cache off ......... 114.7 |=== RAM Disk .......................... 982.1 |==========================