X79 Storage - the Intel C600 series chipset SATA RAID Controller

[Anvil]

Last night I updated my Windows installer USB stick. (using DISM for adding updates and features)

I noticed the process was dead slow and found that I had forgotten to Check the "Write-Cache Buffer Flushing" on the drive it sits on.

So, today I ran a test using the same drive (Samsung F3 1TB) and copied (from another drive) a folder consisting of 627MBs of data, 8471 files in 622 folders.
(this to compare performance with and without buffer flushing)

Buffer Flushing Unchecked (Enabled) : 40 seconds

Buffer Flushing Checked (Disabled) : 6 seconds

The X79 without buffer flushing Disabled is dead slow.

This is on my system though, I'd like someone to repeat the test with similar test sizes and most importantly a lot of files.

You should restart the computer to make sure that the setting is in effect and that there is no caching on the files you copy!