GC Improvements in JScript for Internet Explorer 8 Beta 1

Microsoft news and tips » GC Improvements in JScript for Internet Explorer 8 Beta 1

Wed, 23 Apr 2008 17:19:58 GMT

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re: GC Improvements in JScript for Internet Explorer 8 Beta 1

Koby Kahane — Wed, 23 Apr 2008 17:54:20 GMT

What about future plans in this area?

A generational GC for JScript could be interesting.

AJAX applications would also benefit greatly from JScript going JIT, like Mozilla is heading with the Tamarin project.

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

Mohamed Meligy — Thu, 24 Apr 2008 00:14:45 GMT

I really hate how this is going to sound but:

In the Silverlight example showing the difference between JavaSCript (silverlight 1.0) and C# (Silverlight 1.1/2.0), the Javacript version was 3 times slower on IE 7 than Firefox 2.

What's the ratio now?

Interesting Finds: 2008.04.24

gOODiDEA.NET — Thu, 24 Apr 2008 05:44:05 GMT

.NET Video: Write Your First Silverlight Game Increasing the Size of your Stack Web CSS 真的可以浮动么？ xUnit

Interesting Finds: 2008.04.24

gOODiDEA — Thu, 24 Apr 2008 05:45:11 GMT

.NETVideo:WriteYourFirstSilverlightGameIncreasingtheSizeofyourStackWebCSS真的可以浮动么...

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

William Edney — Tue, 29 Apr 2008 22:05:23 GMT

JP -

Thanks for these posts! I love the fact that you guys are making a kick-a** implementation of JScript!!

A couple of questions:

1. I assume you guys are running tests like Sunspider, etc. (John Resig of jQuery fame has some too) to test your performance of JScript. Everyone else is ;-).

2. When IE8 is finalized and shipping, is this newer JScript engine also going to be available for 'down-level' clients (like IE7) similar to the current Jscript 5.7 patch?

3. Is this gonna be known as JScript 5.8 ;-) ?

4. Can you guys fix the 'Process Manager' problem (I'm seeing it on Win XP, SP2, IE7) ? It 'lies' to you about how much memory the IE process is taking up, showing a huge amount of memory until you 'minimize' all IE windows. When you make the window visible again, the process shows that the memory is way down, usually about 50% of what it was before you minimized the window. It will slowing start to climb from there until you go through the same process. This doesn't affect the functionality of the application, its just worrisome to users who think that your web app is chewing up a bunch of memory.

Thanks again!!

Cheers,

- Bill

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

Lenen — Sat, 03 May 2008 16:06:55 GMT

Good improvements, I think. Is this something like multithreading technology? Or does MT work a lot different?

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

anonymous — Wed, 21 May 2008 08:20:57 GMT

So what version will ship with IE8 RTM? WScript 5.8?

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

james w — Thu, 29 May 2008 12:53:37 GMT

I understand that Microsoft is actively contributing to the es3.1 spec. This is useful.

But where do you and Microsoft stand on ecmascript4 (es4)? There is a lot of good stuff in es4 even if initially it looks daunting. Javascript - even es3.1 - is not enough for the future of the web. Is Microsoft working on a "new language"?

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

TNO — Fri, 13 Jun 2008 05:00:13 GMT

What surprises me is that there was such a big rush to create that piece of crap called JScript.NET, but an almost opposite reaction to ES4...what gives? ES3.1 is a step in the right direction, but as Brendan Eich and others have stated many times, its just not enough.

re: IE8 Zoom Breaks Standard Jscript Technique For Measuring The Browser Viewport Window

Richard Fink — Wed, 18 Jun 2008 03:23:42 GMT

(A whitepaper explaining this problem plus a comparison with Opera's and

FireFox's implementations is available at:

http://www.readableweb.com/forIEteam/IE8zoomanalysis.htm)

At any zoom level other than 100% - a condition which can't be detected via

script in IE8 - the new Zoom breaks the one and only available, standard,

time honored, and widely deployed script technique for detecting the size of

the browser window viewport in Internet Explorer.

That one and only method of detection available in IE - the values of

document.documentElement.clientWidth/Height (Standards Mode) or

document.body.clientWidth/Height (Quirks Mode) are rendered unreliable for

this purpose as an unintended consequence of IE8's new Zoom. Developers have

been able to rely unquestioningly on these properties for this purpose for

the past ten years. They no longer can.

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

handan — Mon, 14 Jul 2008 13:55:56 GMT

I do is to web map programming, the map shows that this is the use of the mosaic map TABLE

eg:

<table>

<tr>

</ tr>

</ table>

But when I open this page often do not show the picture, I must be in the picture of regional mouse click can show that, Firefox can be directly displayed without onclick, I do not know what it is because I am distressed!

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

ergonomischewerkplek — Sat, 26 Jul 2008 15:56:22 GMT

Thanks for sharing! Nice article!

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

Schiphol — Tue, 30 Sep 2008 22:21:54 GMT

I don't understand the table. can you please explain?

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

Easy ergonomics — Mon, 09 Feb 2009 13:23:21 GMT

Great! Thanks for posting this info.

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

Europallets — Thu, 05 Mar 2009 16:18:21 GMT

Thanks for sharing, i'm still not amused about using IE, firefox is the new way of life.

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

Kinderstoelen — Sat, 18 Apr 2009 13:11:38 GMT

heey Thanks for that link mate

I was looking for that

and IE isn't it more me neighter

Firefox is way better.

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

kantine-stoelen.nl — Sat, 18 Apr 2009 14:40:44 GMT

Heey yeah I agree on that one Fire fox is a way better and way more Easier program too work with it loads faster and IE is Slower at Loading and Downloaden.

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

kunstschilders — Sat, 25 Apr 2009 14:58:00 GMT

it's an Very nice and informatic articel

I enjoyd reading it.

thanks for it!

re: GC Improvements in JScript for Internet Explorer 8 Beta 1

Smart Parking Schiphol — Wed, 11 Nov 2009 17:22:32 GMT

Great info, thanks for the post. Is Microsoft working on a "new language"? Has that been answered?