AHCI vs. IDE Linux Performance Benchmarks

[RealNC]

Your description is wrong, first it's NCQ and it is not limited to reads

No, it was spot on. These were just typos since I wrote it very fast and I didn't keep track of the latest SSD developments ;-)

[gilboa]

In my experience using AHCI makes a huge impact once you use software RAID devices - especially when it comes to responsiveness under load.
In IDE mode, heavy IO would have simply bogged down my dual Xeon machines.
w/ AHCI, even while running a tar backup w/ pbzip2, I can still use the machine.

... Though to be honest, I never took the time to benchmark it.

- Gilboa