Windows 7 Performance Guide
by Ryan Smith and Gary Key on October 26, 2009 12:00 AM EST- Posted in
- Systems
What’s New since Win 7 RC
Unlike Vista, which was furiously being developed right through SP1, there’s very little to report for Windows 7 when it comes to what has changed between the release candidate and the final version.
Internally, the issues we encountered with the RC and mentioned in our RC article have been resolved. Our stuttering HTPC no longer stutters, and Windows 7 now recognizes the JMB363 drive controller in one of our test systems correctly. At this point we have yet to encounter any issues that we can chalk up to a bug in Windows 7, which is a very promising sign.
There have been no notable changes to any of the programs or components of Windows 7 compared to the RC beyond simple bug fixes, so if you’ve use the RC then you’re going to find that the release version behaves the same way.
The only new bit of information we have is that last month Microsoft revealed that Windows 7 has greater CableCARD support, which we believe is a product of the new Protected BDA driver subsystem. Unfortunately the Digital Cable Advisor tool needed to enable this feature, and the associated firmware for the ATI Digital Cable TV Wonder (the only CableCARD tuner currently on the market) missed their release date of the 22nd, so there is no way to use this functionality at the moment. We don’t have any idea of when these will become available.
Externally, Microsoft’s hardware and software partners have been getting their houses in to order. Since the driver model s aren’t changing this time around there’s not nearly the kind of churn we saw with Vista. AMD and NVIDIA are the outliers here: they have been pushing out new drivers to support DirectCompute, Media Foundation Transcode, and the other features that are coming with 7 and/or DX11. Anti-virus vendors are the other group that stand to be most affected by the launch of 7, as they have been publishing new versions of their suites that include official support for Windows 7.
Finally, battery life, one of the sore spots with the RC, has finally gotten the kick in the pants we were expecting to see. We’ll get deeper in to this later when we look at benchmarks, but for the time being we’ll note that while the RC offered a battery life similar to Vista, the release version of Windows 7 offers battery life well ahead of Vista in all cases, and depending on the exact hardware used similar to if not better than battery life as compared to XP. It looks like Microsoft and driver authors have finally come through on significantly improving Vista’s lackluster mobile performance.
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Genx87 - Wednesday, October 28, 2009 - link
It is Vista with a facelift. If you already have Vista i agree with you. I only have Win7 thanks to my Technet account. Doubt i would pay for the upgrade from Vista.But I still think Win7 is a very kickass OS. I have been impressed. Except for the dumbing down of UAC.
bigpow - Monday, October 26, 2009 - link
If you're just going over the features, and installation of Win7 - why call it performance guide?"Intro to Win7" would be more appropriate.
We expect to see performance related GUIDES, when we saw that title.
Not just some boring and obvious old-recycled presentations the whole internet has already gone through.
So boring!
computerfarmer - Monday, October 26, 2009 - link
Windows 7 was released and the people with AMD systems running RAID setups were in shock, no RAID drivers for windows 7. This is an issue. Today there has been RAID drives posted at the AMD site, with the posting date back dated to the 22nd.I had tried for hours try to get this new OS installed on the 23rd, but none of the available drivers were accepted by Win7. There for I could not install with a RAID setup. After Googling for a bit I realized I was not the only one, this was a far bigger problem.
My initial excitement of enjoying the weekend with the new OS did not take place. It is now monday and I am wondering when I will take another stab at another install attempt.
The link I have found for the AMD RAID driver is
http://game.amd.com/us-en/drivers_catalyst.aspx">http://game.amd.com/us-en/drivers_catalyst.aspx
Why was this issue not covered by any review sit?
Genx87 - Wednesday, October 28, 2009 - link
This is an AMD issue, not a Win7 issue????How is it Microsofts fault AMD dropped the ball with their RAID driver support?
DominionSeraph - Monday, October 26, 2009 - link
"Why was this issue not covered by any review sit?"Because it's not a Windows 7 issue.
computerfarmer - Monday, October 26, 2009 - link
I believe you are half right.If a business runs a raid setup and most do, they can not use this.
If individuals run raid, they can not use this.
If millions of businesses and individuals can not use this. Then what good is an operating system that so many can not use. This is not good business.
The RC version worked with the existing drivers and the RTM version came with out warning that the rules had changed for this OS. The OS has changed, therefor this is an OS issue.
Genx87 - Wednesday, October 28, 2009 - link
How many businesses do you know run RAID on their desktops? I'd like to know myself because in the thousands of workstations I have built over the past years only a handful ever used any form of RAID. And those were RAID 1 and I am convinced the engineers who ordered them only did it to say they have RAID.DominionSeraph - Monday, October 26, 2009 - link
"Certainly someone is going to bite my head off for this, but I don’t think Microsoft should have made such a fundamental change to UAC. More casual users may not have been fond of how Vista or UAC Level 3 handle security, but it was a more secure choice than Level 2."What are you doing complaining about security while running as admin?
UAC is about social engineering. That it acts like a security feature is because if you want to engineer towards the security model with limited accounts, you have to make the administrator account act like one.
The standard access tokens and UAC nags used by the administrator account are not a part of the tiered model's administrator level -- they're there to mimic the experience of a standard user account so programmers will actually program for standard user account access. (and so users will get used to the prompts for elevation that come with operating as a standard user.)
To obsess over a reduction in limited user -type security in the administrator account is to miss the point that that's not even aligned with Microsoft's security philosophy. Their model (along with everbody else) has been tiered privileges, not somehow patching all possible vulnerabilities out of root.
Vista's default UAC was pretty much universally reviled. People wanted fewer nags, meaning less limited-access -like behavior. But you can't have auto-elevation without a reduction in security.
Could Microsoft do a better job securing the hole they opened to god-mode from the administrator account? Yes. Would the amount of effort be insane, judged in light of the fact that an administrator account is supposed to be god mode? Yes.
Should Microsoft rewrite the Win7 kernel so that these apps run in protected space that restricts them to pre-authorized actions and disallows daughter processes just so the lazy and power-mad among us can dismiss the logical security scheme and continue to run as Administrators 24/7? There's always going to be system vulnerability from the administrator account -- that's kinda its purpose. Instead of trying to secure the unsecurable, Microsoft is trying to get people to embrace a better model.
And at least they took out the obvious stupidity, like MSPaint auto-elevating. (You can delete anything [like C:\WINDOWS] from its file manager when elevated.)
And, for the record, I'm one of those lazy and power-mad who run as Admin 24/7. But I'm also on a non-critical machine.
DominionSeraph - Monday, October 26, 2009 - link
http://technet.microsoft.com/en-us/magazine/2009.0...">http://technet.microsoft.com/en-us/maga.../2009.07...ElectricBlue7331 - Monday, October 26, 2009 - link
What's the big deal about out of the box codec support? Is it really that difficult to get a different media player and/or codec pack?