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Dear list,
We are Oracle Apps site, one of the
problem we are having is memory leak with f45webm processes. We had 4G of memory
on the web server tier where the Form server run, when we run the prtmem
command, it reported that 3.5G was used by user (application), using the memps
command I can see the private area (I think this is the heap area of the
process) of the f45webm is chewing up a lot of memory. We had opened tar with
Oracle Support and applied all the patches suggested and also upgrade to the
latest Form patchset, nothing seem to bring down the heap size. I further
investigated and found something which I couldn't make sense of, I observed the
paging rate and scan rate using sar throughout the day, there was not much
happening, just a tiny bit of paging activities, if the box is using 3.5G of
4G, I would expected to see a lot of paging and scanning activities. Is
anyone out there have similar problem with f45webm memory usage. I remembered
reading something about Oracle server process do not release heap memory when it
was done with it, it was up to the OS to reclaim it. In order words, the heap
side shown is not really what is being used, sort of like a high water mark.
Would the f45webm processes exhibits similar behaviour?? Also the prtmem and
memps command, the number they displayed represent virtual or physical memory? I
got a feeling is virtual because the total size included shared as well,
but my SA said it is physical memory, any ideal??
KC
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