Long delay open large files - for the first time in a session

[Villy Madsen]

Greetings

I have an application (an VAX emulator) that opens two Gbyte sized files.
The first time that I run this program in a windows (XP/HOME SP2 - same
thing happens on an XP/Prof SP2 on a laptop and another desktop (every
system I've tried it on) also all are NTFS)

Task Manager shows a lot of paging activity for the process and lots of IO.
The amount of virtual memory allocated stays the same, the amount of
physical memory in use stays more or less the same, but the page fault and
write IO start climbing - until the IO bytes written looks suspicially like
the total size of the two files being opened. Read IO is a tiny fraction
(in terms of IOs and bytes) of the write IO.

If I shut the process down and restart it - it doesn't happen.

If I were a guessing kind of person, I would guess that WXP is creating an
area in the paging file to hold these files

Any thoughts on how I can stop this from happening - you wouldn't believe
how long it takes on the laptop.

Villy

 

[Gerry Cornell]

Villy

I would check on how much the pagefile is being used.

Task Manager does not record Page File Usage. It record allocations of the
page file which may or may not be used.
http://aumha.org/win5/a/xpvm.htm

You may check on pagefile (virtual memory) usage with
Page File Monitor for XP:
http://www.dougknox.com/

Make sure you study the readme.txt file carefully to ensure
you get the utility to work as it should.

This utility demonstrates the overall amount of the pagefile
in use. It does not say which application is using it.



--

Hope this helps.

Gerry
~~~~
FCA
Stourport, England

Enquire, plan and execute
~~~~~~~~~~~~~~~~~~~

 

[Villy Madsen]

Does this product only work on XP/PRO ??

Villy

Villy

I would check on how much the pagefile is being used.

Task Manager does not record Page File Usage. It record allocations of the
page file which may or may not be used.
http://aumha.org/win5/a/xpvm.htm

You may check on pagefile (virtual memory) usage with
Page File Monitor for XP:
http://www.dougknox.com/

Make sure you study the readme.txt file carefully to ensure
you get the utility to work as it should.

This utility demonstrates the overall amount of the pagefile
in use. It does not say which application is using it.



--

Hope this helps.

Gerry
~~~~
FCA
Stourport, England

Enquire, plan and execute
~~~~~~~~~~~~~~~~~~~

 

[Gerry Cornell]

Yes.


--

Hope this helps.

Gerry
~~~~
FCA
Stourport, England

Enquire, plan and execute
~~~~~~~~~~~~~~~~~~~

 

[Villy Madsen]

Darn - that's why I can't get it to work on XP/Home
I realize now that the money I saved was worth it...

Villy

 

[Gerry Cornell]

Villy

It works on Home and Professional. I use it on
Home.

--

Hope this helps.

Gerry
~~~~
FCA
Stourport, England

Enquire, plan and execute
~~~~~~~~~~~~~~~~~~~

 

[Thomas Wendell]

NO

Yes.

--
Tumppi
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Helsinki, FINLAND
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