Re: [rvm-research] MMTk command line options don't do anything

Ok, thanks.

Is there an easy way to make it support the gcEvery=Alloc option?

After having a look at the code I tried it with implementing the gc() 
method as follows:

public void gc() {
     Plan.controlCollectorContext.request();
     VM.collection.blockForGC();
}

That caused a collection after each allocation, but it also made my test 
(the Lists script) fail and it never seems to actually collect any garbage.

Lucas

On 05/06/16 10:48, Erik Brangs wrote:
> Hi,
>
> On 03.06.2016 18:34, Lucas Sonnabend wrote:
>> I would like to use JikesRVM and MMTk for my masters project,  but it
>> doesn't seem to work properly. [...]
>> But some of the command line options(which I set in the Run
>> configurations menu in Eclipse) don't seem to be working at all, for example
>> "MMTk/harness/test-scripts/Lists.script  plan=MS verbose=1 gcEvery=ALLOC"
>> only executes three GC runs, so clearly not after every allocation.
>> Similarly when I add "trace=OBJECT" or "trace=TRACEOBJECT" I would
>> expect some tracing output but I see none.
>>
>> Am I missing something obvious here?
> You're not missing anything. The options that you're using are currently not implemented properly.
>
> For gcEvery=ALLOC, the method org.mmtk.harness.Mutator.gc() will be called. This method currently doesn't do anything.
>
> The trace options are implemented in org.mmtk.harness.lang.Trace. If you check the uses of OBJECT and TRACEOBJECT, you'll notice that:
> - OBJECT has no uses in the current harness code
> - TRACEOBJECT is only used if traceObject from the Debug class is called
>
>
> Kind regards,
>
> Erik Brangs
>
> ------------------------------------------------------------------------------
> What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
> patterns at an interface-level. Reveals which users, apps, and protocols are
> consuming the most bandwidth. Provides multi-vendor support for NetFlow,
> J-Flow, sFlow and other flows. Make informed decisions using capacity
> planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e
> _______________________________________________
> Jikesrvm-researchers mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers


------------------------------------------------------------------------------
What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
patterns at an interface-level. Reveals which users, apps, and protocols are 
consuming the most bandwidth. Provides multi-vendor support for NetFlow, 
J-Flow, sFlow and other flows. Make informed decisions using capacity 
planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e