On Wed, Jan 20, 2010 at 9:03 PM, Java1Guy <[email protected]> wrote:
> Ok - i've left my Jetty server up and running with one page open... > The good news is Jetty hasn't crapped out. It had 500MB of heap space > used before a forced GC brought it down to 250MB. The heap dump is > interesting: http://twitpic.com/z0xnx almost 25MB of Text objects used > by the almost 80K displayList partial function objects in my > CometActor. > To me that sounds like a lot of functions! > Without your actual code, there's little we can do. > > Thanks in advance if you can have a look. > Mark > > On Jan 18, 6:36 pm, Java1Guy <[email protected]> wrote: > > Thanks for the response. I have created a small project here: > http://drop.io/memtest(btw <http://drop.io/memtest%28btw> - the zip file > is so big because there are > > 3 heap dumps - before that it was only 21k!) which i believe does > > exhibit the problem. One comet actor page which gets updated every 20 > > sec. via tick. > > So to run this, I've built the war file and installed it into a Jetty > > 6.1.22 installation. The file etc/memtest.xml goes in the jetty/ > > contexts dir. > > I open my Firefox browser to the only page it shows and just leave it > > open for about four hours now - so the session should still be active, > > FWIW. > > An additional thing I'm noticing now is that despite not much else > > happening in the app, the comet responses are taking just under 20 > > sec. That seems huge. > > There are two things I notice in the heap dumps: one is the large > > number of xml.Text objects and their Strings, but second the 5800 > > anonFuncs from the DatastreamActor which are being held by the S > > $ProxtFuncHolder. I guess I could look up the API on that to see if > > there's a way to controls itsbehavior... but there it is. > > Thanks to anyone who takes a look at this, Mark > > > > The stdout: > > ConsoleActor.lowPriority.Tick...>>>DataStreamActor.lowPriority: > HostAddMsg local > > > > ds count 4 > > DataStreamActor.refreshStreams: now we know about stream count: 8 > > INFO - Service request (GET) /memtest/comet_request/2021921075/ > > p6s263zexmzz took 19513 Milliseconds > > ConsoleActor.lowPriority.Tick...>>>DataStreamActor.lowPriority: > HostAddMsg local > > > > ds count 4 > > DataStreamActor.refreshStreams: now we know about stream count: 8 > > INFO - Service request (GET) /memtest/comet_request/11287578067/ > > p6s263zexmzz took 19879 Milliseconds > > ConsoleActor.lowPriority.Tick...>>>DataStreamActor.lowPriority: > HostAddMsg local > > > > ds count 4 > > DataStreamActor.refreshStreams: now we know about stream count: 8 > > INFO - Service request (GET) /memtest/comet_request/26532853932/ > > p6s263zexmzz took 19868 Milliseconds > > ConsoleActor.lowPriority.Tick...>>>DataStreamActor.lowPriority: > HostAddMsg local > > > > ds count 4 > > DataStreamActor.refreshStreams: now we know about stream count: 8 > > INFO - Service request (GET) /memtest/comet_request/11619469749/ > > p6s263zexmzz took 19918 Milliseconds > > > > On Jan 16, 2:32 am, Marius <[email protected]> wrote: > > > > > Lift GC is likely keeping your functions to not expire but this is > > > meant to be that way ... but this doesn't explain the large amount of > > > functions. Can you post a minimalistic example of your app where you > > > can reproduce thisbehavior? > > > > > Br's, > > > Marius > > -- > You received this message because you are subscribed to the Google Groups > "Lift" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<liftweb%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/liftweb?hl=en. > > > > -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Surf the harmonics--
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