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Windows 7: Windows 7 7004; compatibility worries; performance beats Vista

22 Dec 2008   #1
Barman58

Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu
 
 
Windows 7 7004; compatibility worries; performance beats Vista

Windows 7 7004; compatibility worries; performance beats Vista

Windows 7 has surpassed the 7000 build mark as it has been spotted at build 7004. This has concerned a few people in regards to build numbers, but all shall become clear. Don’t worry; your applications are safe and non-hardware specific applications should still work on this and future builds of Windows 7.
Compatibility
Myself and Mary-Jo were discussing compatibility issues around the Windows 7 kernel. The kernel being the basic (I say basic, it’s one of the most advanced teams at Microsoft) brain of the operating system, needs to be at version “6.1″, as opposed to “6.0″ for Vista. The reason is, the “6″ is picked up by applications and is recognised as “Windows Vista” and work well. If it detects “7.0″, hence the name, then these applications simply will not recognise the operating system they’re installing onto, and fail. Simple, but crucial.
To beat this, Windows 7 will be 6.1.****, where the asterisks are the build number. At the moment, we’re looking at build 7004, demonstrated over on Scott Wylie’s blog, showing off a Twitter gadget running on the desktop.

Trust me, it says “Build 7004″; uploaded in case original image gets pulled.

Performance
Although I don’t have the latest copy of Windows 7 (7004), I’ve been playing with build 6956 which I mentioned a week or so ago. I know performance isn’t stable yet, and things can change a hell of a lot in the course of 50 builds, but performance has already significantly improved.
I installed outside a virtual machine, on a dual boot laptop two fresh copies of Windows Vista (SP1) and Windows 7 (6956). As soon as it booted up, I opened the Task Manager and took a screenshot when the up-time hit 4 minutes. The results are fairly interesting:
Although I would not go as far to say that Vista is bloated or uses up far too many system resources… it does a little bit, but what really shows is how much Windows 7 has slimmed down. Let’s face it, Windows 7 is basically Windows Vista with some new features, some necessaries taken out and generally stabilised quite a bit.
Windows 7, from my probably fairly inconclusive analysis, uses less physical memory, halves the amount of kernel memory being used, has a relatively stable and similar ratio between threads and handles (processor stuff), uses less processes on initial post-install, and CPU usage doesn’t seem as erratic even though there are a fair number of peaks.
Bring on the beta build; torrents primed people!



My System SpecsSystem Spec
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22 Dec 2008   #2
Abhimanyu

Windows 7 RC1
 
 

I had heard that microsoft would use a new kernel for their next OS and dump the heavy kernel for Vista. What Happened to that?
Considering Windows 7 to be faster on a Machine than Windows Vista. Should they have got out the new kernel with windows 7? That would have been amazing,but that would have killed the hardware companies. I wouldnt have felt a need for a quad core or i7 then.
Btw i dont feel it now either.

Also would they keep it in the 6.x.xxxx when the final version of 7 releases. Or are they planning to use it for the time being. Also I have still noticed many vista supported softwares not working on 7 as they didnt support the OS and i had to use the "Troubleshoot Compatibility" option,which worked fine to my amazement.
My System SpecsSystem Spec
22 Dec 2008   #3
Barman58

Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu
 
 

Hi Abhimanyu,

Windows 7 does include a lot of revisiona to the kernel, wheather this classifies as the fabled "minwin" is open for debate

If you have an hour to spare you can here the facts from Microsoft themselves in this video ...

Mark Russinovich: Inside Windows 7 | Going Deep | Channel 9

As far as I know, to increase backwards compatibility, Windows 7 will have a version number of 6.1.xxxx where xxxx is the build number.
My System SpecsSystem Spec
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22 Dec 2008   #4
mansrm81

Windows 7 Ultimate x64/ Windows Vista Ultimate x64
 
 

Thanks for the info Nigel
My System SpecsSystem Spec
22 Dec 2008   #5
DiamondNRG

 

Quote   Quote: Originally Posted by Barman58 View Post
As far as I know, to increase backwards compatibility, Windows 7 will have a version number of 6.1.xxxx where xxxx is the build number.
I think a lot of people will actually think less of Windows 7 because of this, like it is a service pack.

Why is it necessary to keep the version number to a 6 when you can install a program in Vista compatibility mode?
My System SpecsSystem Spec
23 Dec 2008   #6
Barman58

Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu
 
 

Hi DiamondNRG,

I think the retention of the 6.1.xxxx will certainly cause some more advanced users to consider Windows 7 as an update, It already has in fact with some of the less well informed bloggers out there.

The thing is that it's not the more advanced users, (like the vast number of our members here), that Microsoft have to convince to go out and install Windows 7, but the IT managers and "normal" home users, The these groups the OOB (out of box) experience is extremely important. The more applications that Windows runs without having to use any compatibility tool the better the "just works" impression is - and that sells!

A lot of the blame for the need for this stratagy would have to be leveled at the programmers of 3rd part applications who specify an actual revision number when they check for compatibility, (if they check for greater than 6, then it will work as M$ intended - if it works on Vista It'll work on Windows 7 )

Whether the fixing of the acceptable version number is done for the sake of upgrade sales, (New OS - New Application?), or or just by less than elegent programming, I don't know, but it is of course Microsoft which takes the blame.

Microsoft publishes guidlines for this type of thing unfortunanely some 3rd parties choose to ignore this advice, even to the level that even a service pack will "break" things"

Hope this helps to explain things as I see them
My System SpecsSystem Spec
23 Dec 2008   #7
DiamondNRG

 

Yeah that makes sense. I just wish Microsoft would for once say, if your software does not work on our OS because they did not follow our guidelines then you should use a different product and it is not your OS' fault!
My System SpecsSystem Spec
23 Dec 2008   #8
Barman58

Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu
 
 

Hello, DiamondNRG,

the same sort of thing is responsible for a lot of the flak that the UAC got in Vista, Microsoft specified in NT3.5 that applications should be written to work with a standard user account. How many programmers decided not to follow that one because it was a more difficult option It also didn't help the security of the system to have so much running with admin privilege

I had a user with a problem the other day and it turns out that their desktop publisher has to be run as admin
My System SpecsSystem Spec
23 Dec 2008   #9
DiamondNRG

 

Yikes, yeah that is bad.
My System SpecsSystem Spec
24 Dec 2008   #10
Dzomlija

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by DiamondNRG View Post
Yeah that makes sense. I just wish Microsoft would for once say, if your software does not work on our OS because they did not follow our guidelines then you should use a different product and it is not your OS' fault!
Actually, I believe Microsoft does say something similar to that. The trouble is, too many people turn around and lay the blame on Microsoft, saying that the OS is bad because their applications don't work properly.

While I may not be a professional programmer, I have been using Delphi long enough to know that a great many bugs in any given project are primarily caused by my code not following the rules, or because I took shortcuts.

But it's never the developers fault! People have been blaming Microsoft for so long, they forgotten how to take responsibility for their own shortcomings.
My System SpecsSystem Spec
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 Windows 7 7004; compatibility worries; performance beats Vista




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