Forum > Discussion Forum

PErformance of new Cat 12.1 preview driver and new AKv8b2 app

(1/4) > >>

Raistmer:


Host config:
Q9450+ATi HD6950
OS: Vista x86

As one can see, new 12.1 driver has definitive speed increase over old 11.2 I used before.
Minimal completion times are better now. From other side, comparison of 11.2 with and w/o -hp switch shows that this switch can give big difference in performance. Currently I collect data to see if -hp will improve elapsed times on 12.1 too.

And it's clearly visible, also, that for this host used AKv8b2 (SSSE3x, x86 one) has lower performance on VLARs than old AKv8b one (SSSE3x, x86 too).
Difference (look for green dots) not too big but definitely exceeds error range.

EDIT: performance difference shows that bugfix (that required more computations to be done) really works so we could detect WoW signal in those missed before parts too now ;D

Morten:
Are you running MB on the 6950?

I'm running 2x6970 and still have the problem with sluggish system when running MB on 6970. If only running AP on 6970, system is 100% responsive.

Mike:
Just increase period_iterations_num to 20.
This should work.

Mike

Morten:
What's the highest value of the setting?

I have used 10 before, but did not experience any notable change (but that was also with a different driver than current 12.1). With 20 now it did improve quite a bit, actually - so thanks for your suggestion.

That said - there has been an ongoing issue with systems running 2x6900 series and I thought Raistmer also reported to AMD, but I'm not sure with post it was.

Mike:
You can try till 100 without any problem.
But somewhere it gets slower of course.

I had a few peops at beta with a 6x card but 20 always worked.
So i do wonder a bit.
But you can try 30 or 40 as well.

Mikie

Navigation

[0] Message Index

[#] Next page