[Vm-dev] Prebuilt 64-bit VM on Linux?

Juan Vuletich (mail lists) juanlists at jvuletich.org
Mon Apr 15 11:25:56 UTC 2013

Hi Folks,

Quoting "David T. Lewis" <lewis at mail.msen.com>:

> On Wed, Apr 10, 2013 at 03:46:31PM -0700, tim Rowledge wrote:
>> Has anyone got even close to using 2Gb in Squeak yet? I imagine  
>> some alarming image load/save times...
> See this thread, in which Dan attempted to provoke some progress on  
> the terabyte image front:
> http://lists.squeakfoundation.org/pipermail/squeak-dev/2010-November/154756.html
> As near as I can tell image size is of no consequence, and in  
> practice the number
> of objects in the image will bring the garbage collector to its  
> knees long before
> address space is a concern.
> I can personally verify that a 7GB is no problem at all, and I suspect that
> installing more physical memory on the PC would result in larger numbers.
> But this is a parlor trick. Making large memories useful in practice (i.e.
> lots of objects filling up all that space) will require scaling the garbage
> collector. I think Eliot may have more to say on that topic :-)
> Dave

For my particular application, I don't need to save and load huge  
images, and I don't need a huge number of small objects.

I'm doing Image Processing on large images. With a 32 bit image I can  
handle a few 25MPixel / 100MB Float pixel images. But what I really  
need is to be able to build, analyze and process multispectral images  
of about 500MPixel * 5 spectral bands in Float format, i.e. 10GigaByte  

Oh, and I also need immediate Floats, so I don't need to use a VM  
plugin to get reasonable performance.

Juan Vuletich

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