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Hotfix in the works for AMD's Bulldozer

by Alistair Lowe on 19 December 2011, 15:00

Tags: AMD (NYSE:AMD), Microsoft (NASDAQ:MSFT)

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A little over a month ago, we reported findings on the performance shortcomings of AMD's Bulldozer line of CPUs, identifying areas where Microsoft's Windows task scheduler was unable to fully utilise the architecture to achieve maximum performance, either harming or not fully exploiting the processors' capabilities, depending on how you wish to look at it.

The question remaining at the end of the article, had been whether Microsoft intended to release a patch for Windows 7 or wait until the release of Windows 8 to include full support for the unique design. Last week, Microsoft let slip prematurely a hotfix introducing changes to the Windows 7 and Server 2008 R2 task scheduler, allowing it to fully exploit the Bulldozer architecture, which has since been pulled.

The hotfix was incomplete, one of two intended fixes, leading to spurious performance figures under some scenarios, however initial suggestions claim a two to seven per cent increase in performance, nothing too major but figures that will no doubt receive a warm welcome from AMD and Bulldozer owners alike, who may wish to keep an eye on Microsoft's website for when the fix eventually becomes live again.

The revelation of a hotfix perhaps bodes well for the overall value of the Bulldozer line as AMD has also launched a Christmas and New Year cash-back promotion, more cores, more money back, https://www.amd-promotions.com/fx/uk/index.asp.



HEXUS Forums :: 12 Comments

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initial suggestions claim a two to seven per cent increase in performance, nothing too major

2-7% of “free” CPU performance from a hotfix is nothing major? 0_o

Hexus not easily impressed today it would seem!!
Well 2% certainly isn't anything to write home about.. 7% a little more worthy but it's unlikely to change anyone's buying decision. It's only a minute off every 14 minutes of x task.
i think the main thing is, the hotfix was half of one so having a 2% - 7% increase is significant as having a full hotfix means it could possibly hitting around 15% we have no idea but any increase is a good increase as BD isnt THAT bad anyways and a nice cashback scheme there putting the fx8120 £2 cheaper than a i5 2320!
How long has Bulldozer been in development? Definitely a long time and much longer than it should have been, yet despite extra time nobody at AMD thought to contact Microsoft and work with them to do a hotfix to be ready at launch, hell it probably could have been in Windows 7/2008R2 SP1 if they'd planned ahead. And if AMD didn't even think of this until someone pointed it out after launch then that's just plain pathetic, didn't they do any testing/validation?

I doubt they have contacted Linux kernel devs either then? What a bloomin shambles. If you're making a new processor architecture that's mildly disagreeable with current OS then you need to do something about it BEFORE launch! :wallbash:
Ask MS for an explanation…..they managed to get the code in Windows 8 early enough!