Maybe this helps? SER10-J
https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?pageId=88487787 On Sat, Nov 24, 2018, 04:41 Owen Thomas <owen.paul.tho...@gmail.com wrote: > The profiler appears to work when I select the view display only objects > of the single class I'm interested in. > > Summarily, my application is composed of about 600 source files. About 80% > code for exceptions; ~130 files code for the application logic itself. It > is written entirely in Java SE. The running instance being profiled > communicates with another instance of the same application. The two > instances exchange serialised objects called transmitters. Transmitters are > swapped between instances about every 88 milliseconds; two transmitters > (one created and the other de-serialised) come into existence at a rate of > about 11 hertz. The transmitters, once created and exchanged, have no > further use and should be destroyed. They are not, and the two running > instances can consume all available physical memory if left running for > long enough. > > If you can make a program do something like that, you might be able to > replicate the problem I have been having with the profiler. I may even have > pointed you to some problem with my use of the profiler in what I've > disclosed above. Let me know you suspect that this may have happened. > > I know I could perhaps be more helpful, but I don't want to jump down a > rabbit hole trying to debug a profiler when what I want to do is to find > out why my application is leaking memory. Additionally, my code is > proprietary, and I'm certainly not about to hand out working copies to play > with. I'm sure you understand, and I'm sorry I can't offer anything better > than this. NetBeans has been good to me, and so I hope this is of some help > for the community in some way. > > > On Sat, 24 Nov 2018 at 20:34, Geertjan Wielenga > <geertjan.wiele...@googlemail.com.invalid> wrote: > >> No one is going to be able to help you unless you can provide the >> application together with steps to reproduce your problems or if you can >> show those problems occurring with a sample application that comes with >> NetBeans, e.g., the Anagram Game. >> >> Gj >> >> On Sat, Nov 24, 2018 at 10:16 AM Owen Thomas <owen.paul.tho...@gmail.com> >> wrote: >> >>> Looks like I'm getting confused and dismayed with my attempts to run the >>> profiler. Any help from any NetBeans user would be appreciated. >>> >>> Thanks, >>> >>> Owen. >>> >>> ---------- Forwarded message --------- >>> From: Owen Thomas <owen.paul.tho...@gmail.com> >>> Date: Sat, 24 Nov 2018 at 20:11 >>> Subject: Re: Novice Profiling Question. >>> To: <v...@ricker.us> >>> >>> >>> This is strange... >>> >>> When I start my application from the profiler with the profile view set >>> to Objects, I see the objects that make up my application. I can switch the >>> view to Telemetry, and the telemetry view appears. But when I switch the >>> view back to Objects, nothing appears. >>> >>> Instead, I get the following in my application console output: >>> >>> Profiler Agent Error: Exception when handling command from client: >>> java.io.IOException: JFluid wire protocol error: code does not >>> correspond to command or response. Value -1 >>> Profiler Agent: Connection with agent closed >>> >>> I ensured the application was completely compiled by selecting Clean and >>> Build from the projects menu before I ran it. I'm finding this perhaps a >>> little confusing... >>> >>> >>> On Sat, 24 Nov 2018 at 17:40, Vic Ricker <v...@ricker.us> wrote: >>> >>>> Did you check the objects being created? Do they interact with >>>> anything else? (passing references to themselves, or their methods, maybe >>>> lambdas? to other things that can't be garbage collected?) Doesn't the >>>> profiler tell what's holding the references? >>>> On 11/24/18 12:34 AM, Owen Thomas wrote: >>>> >>>> Thanks for the tip. I have just tried it. Unfortunately (a bit >>>> surprisingly too) it hasn't worked. I call gc every 10 seconds. The number >>>> of objects I see still seems to grow without limit. >>>> >>>> On Sat, 24 Nov 2018 at 15:47, Vic Ricker <v...@ricker.us> wrote: >>>> >>>>> Did you try forcing garbage collection with System.gc()? Those >>>>> allocations may not be leaked. It may be that the GC hasn't got to >>>>> them >>>>> yet. >>>>> >>>>> >>>>> On 11/23/18 11:19 PM, Owen Thomas wrote: >>>>> > Hello NetBeans Users. >>>>> > >>>>> > An application that I am developing seems to be slowly leaking >>>>> memory, >>>>> > and I have been given some advice that makes me think that the best >>>>> > way to get to the bottom of this problem is by running an instance >>>>> of >>>>> > my application in the profile. >>>>> > >>>>> > I can do that, and as just as I thought, I am seeing particular type >>>>> > types of objects being created but not being destroyed by the >>>>> garbage >>>>> > collector. I've walked though my code many times, and as far as I >>>>> can >>>>> > see, never do I assign the object to a variable that has any scope >>>>> > other than method scope. I can't see why they wouldn't be gc'd, but >>>>> > indeed this is not happening, and I am wondering if this is because >>>>> I >>>>> > am setting these objects to a variable that persists beyond method >>>>> scope. >>>>> > >>>>> > My question (I suppose it's very simple), is this: how do I get the >>>>> > references to objects I see in my profiler? >>>>> >>>>
