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iexplore.exe - takes long time to display content
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snahl-xp View Drop Down
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Posts: 42 		Post Options Post Options   Quote snahl-xp Quote  Post ReplyReply Direct Link To This Post Topic: iexplore.exe - takes long time to display content
    Posted: 02 September 2008 at 11:24pm

Hello PROROOTECT

thanks for the tip on 'Safe Mode'. IE7 changed size from 27248k down to 26260k. Other than that no change.

Additional information to all respondents or curious readers:

When the page finalises its display IE7 indicates an Icon like a Triangle with an exclamation mark at the bottom right. When clicking this icon the error message shows regarding the proper display of the page in question. It clearly refers an error to the script of Google-Analytics that some variable '_gat' is undefined.

I don't get this message on my other XP- and W2K-machines. Guess it might be somewhere in the settings or within the JAVA environment (latest update installed on all machines).
 
Image of this error-message can be found here:
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Posts: 42 		Post Options Post Options   Quote snahl-xp Quote  Post ReplyReply Direct Link To This Post Posted: 02 September 2008 at 10:56pm

Hi Molotov,

thanks for the tips.

I had Fiddler installed on my browser and captured data for one session connecting to (w3schools.com), uploaded the file named: 'IE7-slow.saz'.

At a first glance it seems that the 'ga.js' for the Google-Analytics stuff is holding up a normal display.
 
Then I went to install RATTV3.exe and got the data captured in the file 'CHIEFTEC.cswa-accumulator-report.txt'.
The highest value in milliseconds was on NDIS.SYS. I would assume that has something to do with network connections.
 
But really I am not quite sure how to interpret this table and the data from Fiddler. Would you mind taking a look at the log-files, maybe we find a clue or hint.
 
The NetworkInterfaceCard has been uninstalled and replaced by another NIC some time ago already without noticing any change in this behaviour.
 
I cannot observe an over-all system slowdown, I only observe this slowdown when browsing the web. Also this is inconsistent, sometimes I do get normal rapid response, but most of the times it takes some 30secs. to display a page by the various browsers. Browser cache is emptied each time browser closes. Using (w3schools.com) because the slowdown on this page is consistent.
Other than that eg. when copying files the NIC would slow down as well, but I have not traced that.
 
Also I am not certain at all if DPCs are an issue, I just thought they might be as the word 'deferred' indicates something like 'more time to process'.
 
Firewall was originally from Windows Live OneCare, then (before posting here) I uninstalled that one (hopeing to find a clue without success) and then installed Kaspersky as it has a pretty good record of latest Spyware, Rootkits, Virus, etc.. But installing Kaspersky didn't change a thing eiter.
 
I am pretty much at the end of my 'Latin' and don't know what to do next.
Hope you've got further advice. Thanks.
 
PS: was going to upload the files mentioned, but access is denied. So I posted them on my server. You may download them from here:
 
 
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Posts: 17492 		Post Options Post Options   Quote molotov Quote  Post ReplyReply Direct Link To This Post Posted: 02 September 2008 at 10:53pm
you are right, I apologize
No need to do so - just wasn't sure if you may have been aware of items that may still load despite clearing the box.
 
To me, at least, the remaining instructions are not clear - what to do, and why doing them may help any situation... Confused
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Posts: 559 		Post Options Post Options   Quote PROROOTECT Quote  Post ReplyReply Direct Link To This Post Posted: 02 September 2008 at 10:49pm
Hello Molotov,
 
# Google Toolbar or other toolbar : you are right, I apologize .
# Download ToolbarCop, Download HijackThis ...
# " and come back " = to take off the Safe mode : Restart ... and Windows are come back on normal mode .
 
Respectfully, Prorootect
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Posts: 17492 		Post Options Post Options   Quote molotov Quote  Post ReplyReply Direct Link To This Post Posted: 02 September 2008 at 9:47pm
# Have you Google Toolbar or other toolbar ?
ToolbarCop ...
Disabling third-party browser extensions would have eliminated this possibility, no?
 
Can you explain how memory consumption of Explorer.exe could be related to CPU usage attributable to DPCs?  Also curious how booting into safe mode, and then booting normally may somehow affect the problem.
 
Definitely, the dust removal suggestion is a good one, part of ensuring proper ventilation / airflow.  Also, appropriate to ensure connectors are snug, contacts clean, etc...
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Posts: 559 		Post Options Post Options   Quote PROROOTECT Quote  Post ReplyReply Direct Link To This Post Posted: 02 September 2008 at 9:32pm
Hi,
 
Perhaps, perhaps ...
 
# Have you Google Toolbar or other toolbar ?
# Download HijackThis, and ToolbarCop ...
# And your Memory use of Explorer.exe ( yes ) after restart, please ? If only~~20000 Kb - it is OK. If 30000+ :
Then, every week, make this: Go to Safe mode ( F5 or F8 ...) , go in your account, make nothing, and come back in normal mode ...now - look Memory use of Explorer.exe ... This is the good tweak for my Windows ...
# ... maybe : problem of your PC is DUSTY FAN ... Cleaning with brush and vac ... 


Edited by PROROOTECT - 03 September 2008 at 10:25am
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Posts: 17492 		Post Options Post Options   Quote molotov Quote  Post ReplyReply Direct Link To This Post Posted: 02 September 2008 at 2:20pm
Is there a way I can create a log of what is actually happening when iexplore.exe calls (w3schools.com) and what factors may influence this process?
There are various things that could be done to gather more info about what IE is doing (stacks from Procmon profiling events, Fiddler-style http debugger output, etc.).  But in this case, probably, IE is not really involved in the problem, if DPCs are an issue.  Per the Process Explorer help file:
High CPU consumption by these activities [interrrupts and DPCs] can indicate a hardware problem or device driver bug.
 
So, you may wish to ensure you've updated your drivers to the latest versions.  Ensure you've updated all security software (AV, firewalls, etc.) to the latest builds / versions.  If that doesn't help, consider uninstalling security software, one piece at a time, to see if that helps.
 
Wonder, too, if the network driver may be the cuplrit...
 
You may also consider having a look at DPC Latency Checker.  RATTV3 is another often-suggested tool in cases like this, that may help gather information.


Edited by molotov - 02 September 2008 at 2:20pm
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Posts: 42 		Post Options Post Options   Quote snahl-xp Quote  Post ReplyReply Direct Link To This Post Posted: 02 September 2008 at 2:11pm

Hi Molotov,

thanks for reply.

- DPCs listing:

I've got the Process Explorer open in one Window and iexplore.exe in another window.
Process Explorer is displays the currently active processes, listing order is set to CPU usage.
When instructing iexplore.exe to display 'w3schools.com' it takes just about 24 seconds till the page is displayed. Moments before the page is displayed the DPC-process is displayed almost on top of the list and sticks there longer than any other process (the listing normally keeps changing constantly). Untill the moment the page is displayed in iexplore.exe.

It was the same for Firefox and Opera, both have been uninstalled a few days ago.
 
The "Enable third-party browser extensions" box was still checked. Unchecked it as per your suggestion. The result remained unchanged, even after rebooting the system.
 
Is there a way I can create a log of what is actually happening when iexplore.exe calls (w3schools.com) and what factors may influence this process?
 
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Posts: 17492 		Post Options Post Options   Quote molotov Quote  Post ReplyReply Direct Link To This Post Posted: 02 September 2008 at 12:03pm
Hi Hans,
 
Can you elaborate on what you mean by:
I saw a DPCs listing that disappeard the moment the web-page got displayed (!).
?
 
Does another browser such as Firefox also exhibit the same characteristics?
 
What happens if you go into Internet Options, and on the Advanced tab clear the "Enable third-party browser extensions" box?  Save the change, restart IE, and see if anything is different.
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Posts: 42 		Post Options Post Options   Quote snahl-xp Quote  Post ReplyReply Direct Link To This Post Posted: 02 September 2008 at 11:54am
Hello,
I am new here and hope to find a solution to this problem:
 
When running iexplore.exe very it takes nearly a minute till the web-page content is delivered to the screen, then suddenly response is normal like on my other PCs. There is one web-site where this is valid for each page displayed (http://www.w3schools.com/) , but only on one PC.
This PC has Windows XP professional (SP3) latest releases throuhg MS update installed.
Also while researching the problem I came across this information from Microsoft: 'The computer may respond very slowly as the Phishing Filter evaluates Web page contents in Internet Explorer 7'
I have installed KB928089, but no change.
 
Researching more I came across  'Sysinternals' and installed the 'Process Explorer' to better  see what might be going on.
When observing the process listing while iexplore.exe would call eg: (http://www.w3schools.com/) I saw a DPCs listing that disappeard the moment the web-page got displayed (!).
(Hah, maybe I am getting close - I thought).
 
So I went on and found the the following post on DPCs: 'How much time is your driver spending in its DPCs and ISRs?':
 
There a utlility named 'tracelog' is mentioned that appears to be very useful in further investigating the delayed response from 'iexploire.exe', but that utility requires the Windows Driver Kit:
Windows Driver Kit (WDK)
Release versions of the WDK are available on WHDC or through MSDN Subscription.
Well I am not a developer at all and I feel that I am not able to continue myself here, therefore I figured I better check this forum and hope to find an answer before re-installing the XP and all my imaging software.
 
Any help or constructive feedback is highly appreciated.
Kind regards, Hans.
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