Re: [Gems-users] Memory leak?

[Mike Marty <mikem@xxxxxxxxxxx>]

Yes, I've seen the same behavior.

We don't know of any memory leaks in GEMS.  I've run Valgrind/Purify on
Ruby before and didn't find any leaks.

It may be due to Ruby's profiler that continues to gather statistics and
build histograms.  We have not had time to study how these structures grow
with simulation time.  I think the best way to measure this is to add code
to periodically check the sizes of the various data structures.  Its been
on my long-term TODO list.

I suspect that Simics resident memory usage grows as more of the target
memory and disk is accessed.  Simics contains its own memory manager and
usually caps the amount of resident memory used however.

Not sure if any of this helps you, but you are not alone in seeing this
behavior.  It hasn't been problematic enough for me to personally look
into.

--Mike

> My simulation with gems keep on increasing their memory usage with time. The
> final memory usage is sometimes double or even more than double of the initial
> memory usage.
> It becomes a real problem with TPC, specially if I run it longer.
> Is it a common behavior?
> Is this a memory leak or some other phenomenon is going on?
>
> Thanks.
> --
> Nauman
>
>
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