RockAway Technology said:
Unfortunately, the link provided doesn't provide any quantitative information...which is what I'm looking for.
A small performance improvement can make significant improvement on overall system performance depending on where it is, and what programming it impacts.
In general, the lower the level of the device in system I/O, the greater the impact on performance...and disk I/O is very low on the list.
I was hoping that someone has done some RECENT testing that indicates where this stands with newer technology, higher-platter density, low-mass r/w head drives.
My hypothesis is that with the newer drives the system
performance gains achieved by opening-up the acoustic margins is almost immeasurable...but the point is...I've seen no data to support this as yet.
I quantified my older drives using ftool
long ago. What I don't have are any data for more recently available drives.
On some of my older drives, it was virtually impossible to hear any noise level difference between using the maximum quiet profile and the acoustic profiling 100% disabled. On such drives, I'm willing to completetly disable the acoustic management in order to obtain any
performance gain. I also haven't seen any significant thermal difference between the drives running with or without acoustic profiling disabled. Any difference I've seen has been well within measurement error limits.
If someone could provide dBA measurements of a lot of the newer drives with acoustic profiling set to "default" (this is usually about half-way on the "slider" from what I've seen) and again the dBA rating with acoustic profiling 100% disabled, I think that would be a very useful bit of information.