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Reports seem to gobble up RAM ....

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    #1

    Reports seem to gobble up RAM ....

    I have been trying to get a handle on the ways in which RAM is utilized on the WAS. I have previously reported problems with RAM creeping up over the course of a day. It has led me to have to restart the server several times per day.

    Session variables do seem to drain RAM, and simply deleting them or even using session.reset() does NOT reclaim the memory used. Boy, I wish this was pointed out before investing so much time in creating an application. I have had to make many changes after the fact - and it does improve RAM usage and performance.

    HOWEVER - I have discovered that the biggest drain on RAM, at least for me, is in the use of reports! To illustrate, I have restarted the WAS, logged in to my application and am now at a page from which I will run a relatively simple report. RAM is now at 70,480K. I now click submit to run the report, and the PDF opens on my display - RAM is now at 82,004K. WOW - 11.5MB just to run and display one relatively simple report. Closing the report by using the browser back button, and even logging out of the application brings RAM down to 75,706K: 5,226K of RAM was NOT recovered. And this is just for one report and one user!

    I have now logged back in, and am back at the same screen to generate that same report again. RAM is at 75,512K. I run the report again, and then again use browser back button to close the report. RAM is now at 75,556K. Pretty much back to wehere we were after the first run of the report. But still missing approc 5,000K of RAM.

    Ran another report and closed it. RAM is now at 77,564K - another 2,000K of RAM is lost!

    Can anyone make sense out of this for me. And more importantly, is there a way to recover ALL of the RAM that is used by reports.
    Gary S. Traub, Ph.D.

    Tags: None
    #2
    Re: Reports seem to gobble up RAM ....

    maybe this helps:
    RamCleaner - BOOST Your Computer's Speed & Stability

    Comment

      #3
      Re: Reports seem to gobble up RAM ....

      Eric,

      Have you used this product?

      When I attempt to download a free trial, I get a warning that this is a known attack site.
      Gary S. Traub, Ph.D.

      Comment

        #4
        Re: Reports seem to gobble up RAM ....

        I made a download no problem.
        ESET Smart Security is my Virus,Spam Firewall reported nothing.
        There are dozens that type of tools to find.
        I used it in the earlier days that RAM was not so cheap.
        You have to play free ram tools to see or it helps.
        A lot of applications leave something behind number 1 is Microsoft then Adobe etc.
        If your on XP and hit th roof of 2GB for 100 % ore more to move Vista of V7 64 bit. What have I seen on the board others have no problem with it maybe in time your the first to use the WAS on 64 bit level:).

        Comment

          #5
          Re: Reports seem to gobble up RAM ....

          I have several times in the past suggested a memory manager (frees up memory) to many users here on the messageboard, but no one has ever indicated that it helps with the WAS....I would be interested in some feedback regarding this (I received NONE from anyone I suggested trying this BTW).

          I personally had used a free software called "CacheMan" back with Win98. It worked great....so well I could actually multi-task with Win98 and never had a BSOD in the last 2 years of using Win98.
          Mike
          __________________________________________
          It is only when we forget all our learning that we begin to know.
          It's not what you look at that matters, it's what you see.
          Henry David Thoreau
          __________________________________________



          Comment

            #6
            Re: Reports seem to gobble up RAM ....

            Originally posted by MikeC View Post
            I have several times in the past suggested a memory manager (frees up memory) to many users here on the messageboard, but no one has ever indicated that it helps with the WAS....I would be interested in some feedback regarding this (I received NONE from anyone I suggested trying this BTW).

            I personally had used a free software called "CacheMan" back with Win98. It worked great....so well I could actually multi-task with Win98 and never had a BSOD in the last 2 years of using Win98.
            I made a reply on question about System memory not WAS [just a an application]

            Comment

              #7
              Re: Reports seem to gobble up RAM ....

              eric,
              I made a reply on question about System memory not WAS [just a an application]
              Yes, I know. But as this is the Application Server forum, I simply put my answer in that context. (CacheMan for sure works for desktop.)
              Mike
              __________________________________________
              It is only when we forget all our learning that we begin to know.
              It's not what you look at that matters, it's what you see.
              Henry David Thoreau
              __________________________________________



              Comment

                #8
                Re: Reports seem to gobble up RAM ....

                Thanks for the suggestions guys.

                But, I am wondering: there is not much action on this thread. Is that because there is no solution, or is it because no one (but me) is having RAM issues?
                Last edited by drgarytraub; 11-09-2009, 06:26 PM.
                Gary S. Traub, Ph.D.

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