I am not sure what the default is set to
Look at the constructors of DiskPageStore.
My end goal is to try and squeeze more performance out of my application.
If that is your goal you are on the wrong track. The disk store is a
rotating logging based, mostly write-only store. Logging based as new
content is written sequentially from start to end of the file, rotated
because when the file is full it starts at byte 0 thereby overwriting
old pages. It is mostly write-only as only when a user presses the back
button data may be read back from the page store.
Early removal of data will only mean more disk-head movements making it
slower instead of faster.
Regards,
Erik.
David R Robison wrote:
I have been monitoring the size of the pm-null file stored in the Work
directory from Tomcat. I assume that it is the serialized version of
the PageMap. I have an application where, if I navigate from page A to
page B and then back to page A, the pm-null file keeps growing. I
understand that I can set the maximum number of pages saved in the
PageMap but I am not sure what the default is set to. Also, if I am
leaving a page with a form and do not intend to return to that page
and submit its values, do I even need it in the PageMap? Is there a
way I can remove my page from the PageMap when I know I am no longer
going to need its values? My end goal is to try and squeeze more
performance out of my application. I hope this is understandable...
any thoughts?
--
Erik van Oosten
http://www.day-to-day-stuff.blogspot.com/
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