One of the most significant disk speed improvements available to Windows 7 is (for hardware setups that can support it) to disable Write Cache Buffer Flushing. This allows application software to blaze ahead af
On AM654 SoC(arm64) which is IO coherent and has L3 Cache, cache maintenance operations being done to support non-coherent platforms causes issues. For example, here is how U-Boot prepares/handles a buffer to receive data from a device (DMA Write). This may vary slightly depending on the...
You shouldn't be flushing the entire dcache before doing DMA. There are routines that I have forgotten the name of that will flush only a given area. I don't recommend setting your DMA buffers to be uncached as that will slow down CPU access to that area. After doing a DMA read,...
4. To Turn Off Windows Write-cache Buffer Flushing on the Device WARNING: To Prevent data loss. Do not check this option unless the storage device has a separate power supply that allows the device to flush it's buffer in case of a power failure. A) Select (check) the Turn off Wind...
C) Check or uncheck the Turn off Windows write-cache buffer flushing on the device under Write-caching policy. To prevent data loss, do not check Turn off Windows write-cache buffer flushing on the device unless the device (disk) has a separate power supply (ex: UPS) that allows the de...
So a quick question, with write cache enabled i get a very nice bump in SSD and HDD performance but I understand it uses the RAM as a cache so I dont know if this effects system performance at all or if its a negligible loss and I should leave it alone. Rainbow Barf --- CPU...
One of the most significant disk speed improvements available to Windows 7 is (for hardware setups that can support it) to disable Write Cache Buffer Flushing. This allows application software to blaze ahead after writing data to disk wit...