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PT scan, 16 iterations on ~280 stocks for 6 months: I have had memory
problems with this scan so I decided to monitor what was going on by using
the Windows Task Manager, ( win 2k, win xp ) cntl-alt-delete to invoke
I was not sure AB was running so I started there.
WTM processes tab: sure enough Broker.exe was getting 98% of the CPU cycles.
To check the memory usage go to the WTM Performance tab: the interesting
things here is the Page File usage chart and the Physical Memory statistics.
At first you can watch the executing programs eat up your physical (RAM)
memory. It sucked down my 1024 Mb of RAM to about 5Mb before it started to
do serious disk swapping for temporary storage. At the moment the scan is
still running and the Page File usage is up to 1.75 Gb. If you run out of
Page File space the program will crash with (probably) an out of memory
error message.
You can monitor your system to see how a big scan is doing. If you have
some spare HD space you can increase the Page File size.
Note: exit all running programs before you attempt changing the Page File
size or you may regret the resulting occasional crash...
start/control panel/system/advanced/performance settings/advanced/virtual
memory change/
The recommended settings at the bottom of the page will probably be too
small. Use the custom setting to increase the min/max Page
File settings. At the moment I am using 2Gb min and 4 Gb max. Reboot to
have the settings take effect.
Cheers
Sid
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