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Inconsistency between memory usage and speed with big documents

J

Jbus

Flightless Bird
I have a big (2 columns, 32000 rows, 10Meg) simple html file looking like this:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3c.org/TR/1999/REC-html401-19991224/loose.dtd">
<HTML xmlns="http://www.w3.org/1999/xhtml">
<HEAD><TITLE></TITLE>
<META content="text/html; charset=utf-8" http-equiv=Content-Type>
<STYLE type=text/css>
TR.d0 TD { BACKGROUND-COLOR: #cc9999; COLOR: black }
TR.d1 TD { BACKGROUND-COLOR: #9999cc; COLOR: black }
</STYLE>
</HEAD>
<BODY>
<FORM id=form1 method=post name=form1>
<TABLE style="BORDER-BOTTOM-STYLE: solid; BORDER-RIGHT-STYLE: solid;
FONT-FAMILY: @Arial Unicode MS; WORD-WRAP: break-word; BORDER-TOP-STYLE:
solid; TABLE-LAYOUT: fixed; BORDER-LEFT-STYLE: solid" width="100%">
<COLGROUP>
<COL width="50%" />
<COL width="50%" />
</COLGROUP>
<THEAD>
<TR>
<TD>Column 1</TD>
<TD>Column 2</TD>
</TR>
</THEAD>
<TBODY>
<TR class=d0>
<TD>bla bla bla</TD>
<TD>bla bla bla</TD>
</TR>
<TR class=d1>
<TD>bla bla bla</TD>
<TD>bla bla bla</TD>
</TR>
</TBODY>
</TABLE>
</BODY>
</HTML>

When i open it in IE6, IE7, Opera, Firefox and Chrome, the browser use
around 100 Meg of memory.

When i use it on IE8, on some computers IE use 130 Meg, But on most of them
IE need 300 Meg. More than 2 times more.

I try with different hardware and software configurations (XP sp2, XP sp3,
Vista, Seven, in 32 bits and 64 bits, in english and in french), different
Antivirus, ... But i can't find any logical reason explaining that difference.

I try also with to open the html document by clicking of the file, or with
the menu/File/Open. In that case (by comparaison with Http WebServer, or with
Drag'n drop), the memory usage is worst, and grow to 450 Meg. The time to
display change from 10 secondes to 10 minutes...

This doesn't happen with the others browsers.

Any idea why IE memory usage and speed is so different from one computer to
an other, or by the way you open the file?

Thanks.

P.S. : I am not interested by a response asking why the file is so big. I
know i can make some pagination, but this is not the point here.
 
P

PA Bear [MS MVP]

Flightless Bird
Developer-specific resources include:

MSDN IE Development Forum (post such questions here instead)
http://social.msdn.microsoft.com/Forums/en-US/iewebdevelopment/threads

Tip: When posting in Developer forums, always include a link to your web
site or test pages in your first post.

IE Developer Center
http://msdn.microsoft.com/en-us/ie/default.aspx

Learn IE8
http://msdn.microsoft.com/en-us/ie/aa740473.aspx

HTML and DHTML Overviews and Tutorials
http://msdn.microsoft.com/en-us/library/ms537623.aspx and

Cascading Style Sheets (CSS)
http://msdn2.microsoft.com/en-us/ie/aa740476.aspx

Expression Web SuperPreview for Internet Explorer (free, stand-alone visual
debugging tool for IE6, IE7, and IE8)
http://www.microsoft.com/downloads/...FamilyID=8e6ac106-525d-45d0-84db-dccff3fae677

Expression Web SuperPreview Release Notes
http://www.microsoft.com/expression/products/Web_SuperPreviewReleaseNotes.aspx

Validators:
http://validator.w3.org/
http://jigsaw.w3.org/css-validator/
Developer-specific resources include:

MSDN IE Development Forum (post such questions here instead)
http://social.msdn.microsoft.com/Forums/en-US/iewebdevelopment/threads

Tip: When posting in Developer forums, always include a link to your web
site or test pages in your first post.

IE Developer Center
http://msdn.microsoft.com/en-us/ie/default.aspx

Learn IE8
http://msdn.microsoft.com/en-us/ie/aa740473.aspx

HTML and DHTML Overviews and Tutorials
http://msdn.microsoft.com/en-us/library/ms537623.aspx and

Cascading Style Sheets (CSS)
http://msdn2.microsoft.com/en-us/ie/aa740476.aspx

Expression Web SuperPreview for Internet Explorer (free, stand-alone visual
debugging tool for IE6, IE7, and IE8)
http://www.microsoft.com/downloads/...FamilyID=8e6ac106-525d-45d0-84db-dccff3fae677

Expression Web SuperPreview Release Notes
http://www.microsoft.com/expression/products/Web_SuperPreviewReleaseNotes.aspx

Validators:
http://validator.w3.org/
http://jigsaw.w3.org/css-validator/


"Jbus" <Jbus@discussions.microsoft.com> wrote in message
> I have a big (2 columns, 32000 rows, 10Meg) simple html file looking like
> this:
>
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
> "http://www.w3c.org/TR/1999/REC-html401-19991224/loose.dtd">
> <HTML xmlns="http://www.w3.org/1999/xhtml">
> <HEAD><TITLE></TITLE>
> <META content="text/html; charset=utf-8" http-equiv=Content-Type>
> <STYLE type=text/css>
> TR.d0 TD { BACKGROUND-COLOR: #cc9999; COLOR: black }
> TR.d1 TD { BACKGROUND-COLOR: #9999cc; COLOR: black }
> </STYLE>
> </HEAD>
> <BODY>
> <FORM id=form1 method=post name=form1>
> <TABLE style="BORDER-BOTTOM-STYLE: solid; BORDER-RIGHT-STYLE: solid;
> FONT-FAMILY: @Arial Unicode MS; WORD-WRAP: break-word; BORDER-TOP-STYLE:
> solid; TABLE-LAYOUT: fixed; BORDER-LEFT-STYLE: solid" width="100%">
> <COLGROUP>
> <COL width="50%" />
> <COL width="50%" />
> </COLGROUP>
> <THEAD>
> <TR>
> <TD>Column 1</TD>
> <TD>Column 2</TD>
> </TR>
> </THEAD>
> <TBODY>
> <TR class=d0>
> <TD>bla bla bla</TD>
> <TD>bla bla bla</TD>
> </TR>
> <TR class=d1>
> <TD>bla bla bla</TD>
> <TD>bla bla bla</TD>
> </TR>
> </TBODY>
> </TABLE>
> </BODY>
> </HTML>
>
> When i open it in IE6, IE7, Opera, Firefox and Chrome, the browser use
> around 100 Meg of memory.
>
> When i use it on IE8, on some computers IE use 130 Meg, But on most of
> them
> IE need 300 Meg. More than 2 times more.
>
> I try with different hardware and software configurations (XP sp2, XP sp3,
> Vista, Seven, in 32 bits and 64 bits, in english and in french), different
> Antivirus, ... But i can't find any logical reason explaining that
> difference.
>
> I try also with to open the html document by clicking of the file, or with
> the menu/File/Open. In that case (by comparaison with Http WebServer, or
> with
> Drag'n drop), the memory usage is worst, and grow to 450 Meg. The time to
> display change from 10 secondes to 10 minutes...
>
> This doesn't happen with the others browsers.
>
> Any idea why IE memory usage and speed is so different from one computer
> to
> an other, or by the way you open the file?
>
> Thanks.
>
> P.S. : I am not interested by a response asking why the file is so big. I
> know i can make some pagination, but this is not the point here.
 
R

Rob

Flightless Bird
Jbus <Jbus@discussions.microsoft.com> wrote:
> P.S. : I am not interested by a response asking why the file is so big. I
> know i can make some pagination, but this is not the point here.

I think next time you also should write that you are not interested
in a boilerplate response asking for your version numbers, what antivirus
you have installed and when, or a response sending you off to elsewhere.
Otherwise you see what happens: you get the same response as 80% of
postings here :)

But seriously, it is a very interesting issue. I could think about a
couple of things like colordepth, screen resolution and word length
(32/64) but you already ruled out most of it and it does not really
explain the huge difference.
 
D

Dan

Flightless Bird
What happens with those IE8 machines that are using more RAM if you run in
No Add-ons mode, or reset IE first? It's possible an add-on is parsing the
data which is causing the memory growth and maybe even the speed too.

Dan


"Jbus" <Jbus@discussions.microsoft.com> wrote in message
news:382FB599-BE25-43C2-A230-527C1611D759@microsoft.com...
> I have a big (2 columns, 32000 rows, 10Meg) simple html file looking like
> this:
>
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
> "http://www.w3c.org/TR/1999/REC-html401-19991224/loose.dtd">
> <HTML xmlns="http://www.w3.org/1999/xhtml">
> <HEAD><TITLE></TITLE>
> <META content="text/html; charset=utf-8" http-equiv=Content-Type>
> <STYLE type=text/css>
> TR.d0 TD { BACKGROUND-COLOR: #cc9999; COLOR: black }
> TR.d1 TD { BACKGROUND-COLOR: #9999cc; COLOR: black }
> </STYLE>
> </HEAD>
> <BODY>
> <FORM id=form1 method=post name=form1>
> <TABLE style="BORDER-BOTTOM-STYLE: solid; BORDER-RIGHT-STYLE: solid;
> FONT-FAMILY: @Arial Unicode MS; WORD-WRAP: break-word; BORDER-TOP-STYLE:
> solid; TABLE-LAYOUT: fixed; BORDER-LEFT-STYLE: solid" width="100%">
> <COLGROUP>
> <COL width="50%" />
> <COL width="50%" />
> </COLGROUP>
> <THEAD>
> <TR>
> <TD>Column 1</TD>
> <TD>Column 2</TD>
> </TR>
> </THEAD>
> <TBODY>
> <TR class=d0>
> <TD>bla bla bla</TD>
> <TD>bla bla bla</TD>
> </TR>
> <TR class=d1>
> <TD>bla bla bla</TD>
> <TD>bla bla bla</TD>
> </TR>
> </TBODY>
> </TABLE>
> </BODY>
> </HTML>
>
> When i open it in IE6, IE7, Opera, Firefox and Chrome, the browser use
> around 100 Meg of memory.
>
> When i use it on IE8, on some computers IE use 130 Meg, But on most of
> them
> IE need 300 Meg. More than 2 times more.
>
> I try with different hardware and software configurations (XP sp2, XP sp3,
> Vista, Seven, in 32 bits and 64 bits, in english and in french), different
> Antivirus, ... But i can't find any logical reason explaining that
> difference.
>
> I try also with to open the html document by clicking of the file, or with
> the menu/File/Open. In that case (by comparaison with Http WebServer, or
> with
> Drag'n drop), the memory usage is worst, and grow to 450 Meg. The time to
> display change from 10 secondes to 10 minutes...
>
> This doesn't happen with the others browsers.
>
> Any idea why IE memory usage and speed is so different from one computer
> to
> an other, or by the way you open the file?
>
> Thanks.
>
> P.S. : I am not interested by a response asking why the file is so big. I
> know i can make some pagination, but this is not the point here.
>
>
>
 
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