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Hmmm
What matters most is the resident set size and not the total virtual memory size. The RSS is the portion of the process that needs to be resident (present in the memory of the machine) so that you the process will not experience excesively high paging I/O.

The task manager columns are highly confusing but here is an explanation.

Perfmon counter Taskman Column
--------------- --------------
Private Bytes VM Size
Working Set Mem Usage

Working set is the amount of physical memory that is currently allocated to the process directly and it can be accessed without a page fault. This includes shared pages with other processes. This is why you can't just add up your working sets to find out how much physical ram Windows is currently using. This is equivalent to the resident set.

Private bytes is the total private virtual memory allocated to the process by definition, i.e. may not all be used. In Windows perfmon private bytes is the total private virtual memory committed by the process, i.e. in use right now.

At the end of the day when you look at IE 7's or Firefox's memory usage (working set) it is high but no other process in your system currently needs it anyway. Minimise IE 7 or Firefox and watch the "Mem Usage".
Posted by: the_seb   Posted on: 09/18/06 You are currently: a Guest | Members login | Terms of Use
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Yow! Nasty bugs! But at least I'm patched already.  Zogg | 09/15/06
Are you really sure?  vail2 | 09/18/06
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Another childish post  dl@... | 09/16/06
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Breaking the functionality of a few plugins is no big deal.  osreinstall | 09/17/06
I think MS is too slow  CobraA1 | 09/17/06
timely  samcurry | 09/15/06
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same can be asked of you, too  Monkey_MCSE | 09/15/06
You're right, I don't have answers to the questions.  PB_z | 09/15/06
A short trip to bugzilla will answer most of your questions (nt)  CobraA1 | 09/17/06
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After the upgrade  Boot_Agnostic | 09/16/06
Site was down  Greenknight_z | 09/19/06
Firefox update  garfent@... | 09/16/06
It is your profile directory  osreinstall | 09/16/06
1.5.0.7  garfent@... | 09/16/06
Firefox 1.5.0.7 is still vulnerable to Michal Zalewski flaw!!!!!  vail2 | 09/18/06
Always turn off javascript when going to those websites.  osreinstall | 09/18/06
Use the NoScript FF extension  WildcatRay | 09/18/06
I used it once before  osreinstall | 09/18/06
FYI: NoScript Will Block This...  WildcatRay | 09/18/06
This was old news?  TripleII | 09/18/06
The main Firefox bug is not about security  trapalas | 09/18/06
Memory usage is an issue but...  the_seb | 09/18/06
Memory use is a problem with FF  michael_t | 09/18/06
Hmmm  the_seb | 09/18/06
Solved that weeks ago.  osreinstall | 09/18/06
That is too high  Greenknight_z | 09/19/06
Firefox 1.5.0.7 is still vulnerable to Michal Zalewski flaw  vail2 | 09/18/06
Determined to get message across?  TripleII | 09/18/06
Firefox 1.5.0.7  faridansari0@... | 09/18/06
Firefox 1.5.0.7 crashes on yahoo chess  stoptheviolins@... | 09/18/06
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It's not a real probem, it's a Zdnet affect  Boot_Agnostic | 09/21/06
My Firefox updates...  interested_amateur@... | 09/19/06

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