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 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 |===================================== 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 |===================================== 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 |===================================== 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 |==================================== 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 |===================================== 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 |===================================== 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 |====================================== 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 |==================================== 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 |===================================== 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 |===================================== 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 |===================================== 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 |=================================== 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 |============== 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 |============== 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 |======= 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 |======== 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 |===================================== 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 |===================================== 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 |====================================== 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 |==================================== 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 |=============== 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 |============== 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 |======= 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 |======= 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 |============== 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 |============== 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 |======= 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 |======= 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 |============== 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 |============== 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 |====== 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 |====== 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 |==== 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 |===