What has managed code achieved?

[John]

Hi

What are the advantages actually achieved of managed code? I am not talking
of theory but in reality.

Thanks

Regards

[Mr. Arnold]

"John" <in**@nospam.in fovis.co.ukwrot e in message
news:%2******** **********@TK2M SFTNGP04.phx.gb l...

Hi

What are the advantages actually achieved of managed code? I am not
talking of theory but in reality.

http://en.wikipedia.org/wiki/CLI_Languages
<http://it.toolbox.com/blogs/paytonbyrd/day-1-introduction-to-managed-code-and-the-net-infrastructure-6588>

[kimiraikkonen]

On Oct 20, 3:06*am, "John" <[e-mail] fovis.co.ukwrot e:

Hi

What are the advantages actually achieved of managed code? I am not talking
of theory but in reality.

Thanks

Regards

Check these out:
http://en.wikipedia.org/wiki/Managed_code
http://www.datadirect.com/developer/...tage/index.ssp
http://en.wikipedia.org/wiki/Microsoft_.NET

As your managed code runs under supervision of CLR, it's well-
maintained for .NET framework and the concepts what .NET includes such
as performance, compatibilty and security.

HTH,

Onur Güzel

[Scott M.]

If you think about VB 6.0, which was not managed, developers had to write
lots of extra code that didn't necessarially have anything to do with the
programming problem. Developers had to write extra code to ensure memory
was managed correctly (set x = Nothing) and if they didn't, the program
would develop memory leaks. Developers also had to write addional code to
handle certain security and performance issues as well.

In the managed environment of the .NET CLR, much of this work is
automatically managed by the CLR through its code access security, garbage
collection, & MSIL.

The real, tangible advantages are that less code is written and that the
resulting programs are more robust and cross-language compatible.

-Scott

"John" <in**@nospam.in fovis.co.ukwrot e in message
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Hi

What are the advantages actually achieved of managed code? I am not
talking of theory but in reality.

Thanks

Regards

[Cor Ligthert[MVP]]

John,

What do you think?

Cor

"John" <in**@nospam.in fovis.co.ukwrot e in message
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Hi

What are the advantages actually achieved of managed code? I am not
talking of theory but in reality.

Thanks

Regards

[Juan T. Llibre]

re:
!What are the advantages actually achieved of managed code?

Imho, the greatest achievement for managed code is: it gets rid of "dll hell".

There's also automatic memory management, platform-neutrality, and cross-language integration.

Performance benefits are gained from executing all code in the CLR.
Calling unmanaged code decreases performance because additional security checks are required.

Other performance advantages are available through the use of the Just-In-Time compiler,
with gains in built-in security by using code access security and the avoidance of buffer overruns.


Juan T. Llibre, asp.net MVP
asp.net faq : http://asp.net.do/faq/
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"John" <in**@nospam.in fovis.co.ukwrot e in message news:%2******** **********@TK2M SFTNGP04.phx.gb l...

Hi

What are the advantages actually achieved of managed code? I am not talking of theory but in reality.

Thanks

Regards

[William Vaughn \(MVP\)]

But have we traded one kind of DLL hell for another? How many versions of
the Framework are loaded on your system? How is COM-based DLL management any
different than GAC-cached modules that can be replaced without retesting the
consumer applications? Since we now must wait while the code is compiled
before it can be executed, the performance argument might not hold water for
some applications. Notice how long it takes to launch the Report Manager...
I expect that managed code has managed to disenfranchise a lot of perfectly
good COM developers...

--
_______________ _______________ _______________ _______________ ______________
William R. Vaughn
President and Founder Beta V Corporation
Author, Mentor, Dad, Grandpa
Microsoft MVP
[phone] (Pacific time)
Hitchhiker's Guide to Visual Studio and SQL Server (7th Edition)
_______________ _______________ _______________ _______________ _______________ _______________ __

"Juan T. Llibre" <no***********@ nowhere.comwrot e in message
news:OJ******** ******@TK2MSFTN GP04.phx.gbl...

re:
!What are the advantages actually achieved of managed code?

Imho, the greatest achievement for managed code is: it gets rid of "dll
hell".

There's also automatic memory management, platform-neutrality, and
cross-language integration.

Performance benefits are gained from executing all code in the CLR.
Calling unmanaged code decreases performance because additional security
checks are required.

Other performance advantages are available through the use of the
Just-In-Time compiler,
with gains in built-in security by using code access security and the
avoidance of buffer overruns.


Juan T. Llibre, asp.net MVP
asp.net faq : http://asp.net.do/faq/
foros de asp.net, en español : http://asp.net.do/foros/
=============== =============== ========
"John" <in**@nospam.in fovis.co.ukwrot e in message
news:%2******** **********@TK2M SFTNGP04.phx.gb l...

>Hi

What are the advantages actually achieved of managed code? I am not
talking of theory but in reality.

Thanks

Regards

[Gregory A. Beamer \(Cowboy\) - MVP]

"Juan T. Llibre" <no***********@ nowhere.comwrot e in message
news:OJ******** ******@TK2MSFTN GP04.phx.gbl...

re:
!What are the advantages actually achieved of managed code?

Imho, the greatest achievement for managed code is: it gets rid of "dll
hell".

I think this depends on whether or not your regard the problems with the GAC
as another type of DLL hell,as it sounds like both I and Bill do. ;-)

For most, however, this is a definite advantage, as most do not use the GAC
much and those who do know how to version (maybe?).

--
Gregory A. Beamer
MVP, MCP: +I, SE, SD, DBA

Subscribe to my blog
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| Think outside the box! |
*************** *************** **************

[Gregory A. Beamer \(Cowboy\) - MVP]

Less Blue Screens by junior developers. ;-)

Realistically, from my COM days, the biggest real world advantage is not
having to register everything and the pain associated with registering
development builds to properly test.

Of course, if you use MTS, you had the option of dropping the running
process and droppping a new COM DLL over the old DLL. But this was thinking
WAY outside the box. You also ended up having to add the weight of MTS to
your app. Not too bad with web apps, which already had most of the weight.
Not as exciting for other apps.

With .NET, however, you can do this without a kludge. So that is a real
world advantage.

--
Gregory A. Beamer
MVP, MCP: +I, SE, SD, DBA

Subscribe to my blog
http://feeds.feedburner.com/GregoryBeamer#

or just read it:
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*************** *************** **************
| Think outside the box! |
*************** *************** **************
"John" <in**@nospam.in fovis.co.ukwrot e in message
news:%2******** **********@TK2M SFTNGP04.phx.gb l...

Hi

What are the advantages actually achieved of managed code? I am not
talking of theory but in reality.

Thanks

Regards

[Ben Voigt [C++ MVP]]

Juan T. Llibre wrote:

re:
!What are the advantages actually achieved of managed code?

Imho, the greatest achievement for managed code is: it gets rid of
"dll hell".

Replaces it with assembly-hell, and since most assemblies still end in .dll
....

>
There's also automatic memory management, platform-neutrality, and
cross-language integration.

Ok.

>
Performance benefits are gained from executing all code in the CLR.
Calling unmanaged code decreases performance because additional
security checks are required.

That's "enabling partial trust scenarios", not improving performance.
Native performance is still better.

>
Other performance advantages are available through the use of the
Just-In-Time compiler,

Like? Sure, the JIT *could* use information about the hardware environment,
such as cache size or availability of extended instruction sets. But that's
more theory than reality.

with gains in built-in security by using code access security and the
avoidance of buffer overruns.

JIT doesn't avoid buffer overruns, bounds checking does. And precompilation
does a lot better job of reasoning about bounds checks at compile time and
optimizing them away than the JIT.

Almost all runtime performance gains from .NET are the fact that memory
allocation from a stack is a LOT cheaper than from a heap. In most cases
that actually pays for all the inefficiencies of .NET so managed code comes
out even with native on average, on many apps managed is a little faster,
for some native is a lot faster.

>

Juan T. Llibre, asp.net MVP
asp.net faq : http://asp.net.do/faq/
foros de asp.net, en español : http://asp.net.do/foros/
=============== =============== ========
"John" <in**@nospam.in fovis.co.ukwrot e in message
news:%2******** **********@TK2M SFTNGP04.phx.gb l...

>Hi

What are the advantages actually achieved of managed code? I am not
talking of theory but in reality. Thanks

Regards