[squeak-dev] Re: A pretty big Squeak 4.3 image (nearly 8 GB)

David T. Lewis lewis at mail.msen.com
Sat Jan 14 16:34:14 UTC 2012


I think the garbage collector may be using some of those high speed
neutrinos they located over at CERN ;)

On Sat, Jan 14, 2012 at 05:23:25PM +0100, Andreas Raab wrote:
> The coolest thing in your screenshot is this:
> 
> GCs
>   full  103 totaling 103,207,042ms (6470.0% uptime)
> 
> :-)
> 
> Cheers,
>   - Andreas
> 
> On 1/14/2012 17:09, David T. Lewis wrote:
> >Here is a screen shot of the Squeak 4.3 release image traced to 64-bit
> >object format, showing the image size after allocating a lot of object
> >memory. This is running on a box with 8GB of real memory, so the image
> >is about as large as can get on my computer.
> >
> >  <http://squeakvm.org/~lewis/squeak4.3-64bit/squeak64-big.png>
> >
> >The image is fully functional and can be saved to disk and reloaded.
> >Monticello and other tools all work, and the image can be updated from
> >the trunk update stream as normal. Saving the image to disk and restarting
> >it are slow due the file size and amount of memory used, but the image
> >itself works fine. Garbage collection works, and overall the performance
> >remains good up to the point that the operating system is forced to start
> >page swapping (because the image is larger than available real memory
> >on this box).
> >
> >Dave
> >
> >
> >
> 



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