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Microsoft suggests disabling ReadyBoost until SP1
Microsoft plans numerous fixes including an update to ReadyBoost

Microsoft officially launched Windows Vista for volume licensing on November 30. The company also simultaneously launched Office 2007 giving Microsoft a 1-2 punch in the realm of operating systems and productivity suites.

"These are game-changing products," said Microsoft CEO Steve Ballmer at the launch. "It’s an incredible step forward for business computing in a year of unprecedented innovation from Microsoft. We expect that more than 200 million people will be using at least one of these products by the end of 2007."

Microsoft followed up with the retail launch of both products two months later on January 30. Both software products were made available in over 70 countries and over 40,000 retail locations.

Windows Vista is not even a year old, but Microsoft is already orchestrating the launch of Service Pack 1 (SP1) Beta 1 for the week of July 16. Many companies will not even touch a new Microsoft operating system until the first service pack is released, so the quick rollout of SP1 isn't totally unexpected.

According to ZDNET's Mary Jo Foley, SP1 will RTM in November after just four months of testing. Microsoft will also release Windows Server 2008 at the same time.

Expected updates/fixes included with SP1 will be a revised Desktop Search, faster file copying and shutdown speeds, support for SD Advanced Direct Memory Access, enhancements to BitLocker Drive Encryption and Extensible Firmware Interface (EFI) support on x64 machines.

There will also be changes made to Windows ReadyBoost. There have been numerous complaints around the web concerning ReadyBoost and resuming from S3/S4 sleep. Sluggish performance on resume can be attributed to numerous writes to 'Readyboost.sfcache' on the ReadyBoost storage device.

According to Microsoft’s Robert Hensing, "[ReadyBoost] uses an AES 128 key that is generated once per OS start (the data in the file on the thumb drive is encrypted with this key) . . . the key isn't persisted anywhere (i.e. it lives in memory only) and so apparently when you sleep / hibernate - the key goes bye bye and thus you need to rebuild your 2GB ReadyBoost cache on your USB disk when you resume again."

Hensing continues, "Vista realizes that it needs to regenerate the ReadyBoost cache as soon as it wakes up and loads the USB drivers and realizes the ReadyBoost drive is plugged in and it starts helpfully doing this as soon as it can . . . ya know - while the OS is trying to page all that memory back into my 2GB of system RAM as well and generally restore the OS to a working state  . . . sigh . . ."

The changes made to ReadyBoost in SP1 will ensure that cache data is reused during S3/S4 sleep so that 'Readyboost.sfcache' is not repopulated on resume.



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Yea
By Mitch101 on 7/9/2007 10:15:56 AM , Rating: 2
I really like Vista with the exception of some driver and performance issues and cant wait to be using it all the time. Hopefully this will bring them up a bit so Vista is somewhat comparable to XP in graphics performance at least in DX9 in DX10 you cant expect a performance increase.

I am but doubtfull it can be done as DX10 is much more than DX9 so a performance hit is expected. Much like when everyone expected Physics processors to somehow speed up thier graphics cards I expected them to slow them down because of all the additional objects moving around on the screen that the video card would have to draw. Physics was beaten down because of the lack of increased framerates same as DX10 is beaten down despite it having a lot more functionality built in. PPU took the load off the CPU while adding more objects for the graphics card to display thus increasing the load of the GPU. For DX10 over DX9 because the GPU has more information to process or additional layers of information that can be added even if they arent used one would still take a performance hit. Im sure second or third generation video cards will close that gap and we will have a lot more eye candy to be happy about.

For now Im not too impressed by first gen DX10 cards especially since there is no card in the $200 range which looks like the sweet spot as the sub $200 cards seem to lack the power and the above $300 cards will drain my wallet.




RE: Yea
By blaster5k on 7/9/2007 10:39:21 AM , Rating: 2
The 8800GTS 320MB from NIVIDIA can be had for around $260, making it the closest to the sweet spot you refer to. It is unfortunate that no true mid-range cards exist with the latest generation of cards though.


RE: Yea
By fake01 on 7/9/2007 11:30:03 AM , Rating: 2
Why is everything so expensive in Australia :-( 8800GTS 320MB $450, 8800GTS 640MB $550, 8800GTX 768MB $760, X2900XT $570.

Bought my 7600GT for $190, and it works perfectly well in Vista, it even overclocks better than in XP thus gaining better performance than what I got in XP :-)


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