Hi all,

I'm very happy to see that the 64 bit Pharo vm is progressing.
I've even managed to get a ~6.85 GB heap allocated (see
http://bit.ly/2lbp8n6).
This is great!

There seems however to be a small problem with the #shallowCopy message,
which is 2.63 times slower on the 64bit VM (image/vm details bellow).

The bench that I used is a simple random graph analysis tool that is
intended to do a lot of random memory accesses on big heaps, which is
accessible at http://www.smalltalkhub.com/#!/~CipT/PlugMC
In this case I expect the execution time to be dominated by the Set
implementation (which is the case with pharo 5 -- see http://bit.ly/2lbzJhd),
and not by the array copy (see http://bit.ly/2kvbqvy).

Is this a 64bit limitation, or only a feature "not yet available" ?
Where can I access the latests versions of 64 bit pharo image and vm ?

Image
-----
/Users/ciprian/Downloads/Pharo64/60371-64/Pharo64-60371.image
Pharo6.0
Latest update: #60371
Unnamed

Virtual Machine
---------------
/Users/ciprian/Downloads/Pharo64/Pharo 4.app/Contents/MacOS/Pharo
CoInterpreter * VMMaker.oscog-eem.2111 uuid:
7c02b557-bdcc-4a91-92b1-7fc15f1e8605
Jan 27 2017
StackToRegisterMappingCogit * VMMaker.oscog-eem.2111 uuid:
7c02b557-bdcc-4a91-92b1-7fc15f1e8605 Jan 27 2017
VM: 201701271449 https://github.com/pharo-project/pharo-vm.git $ Date: Fri
Jan 27 15:49:20 2017 +0100 $ Plugins: 201701271449 https://github.com/pharo-
project/pharo-vm.git $

Mac OS X built on Jan 27 2017 15:28:14 UTC Compiler: 4.2.1 Compatible Apple
LLVM 7.3.0 (clang-703.0.31)
VMMaker versionString VM: 201701271449 https://github.com/pharo-
project/pharo-vm.git $ Date: Fri Jan 27 15:49:20 2017 +0100 $ Plugins:
201701271449 https://github.com/pharo-project/pharo-vm.git $
CoInterpreter * VMMaker.oscog-eem.2111 uuid:
7c02b557-bdcc-4a91-92b1-7fc15f1e8605
Jan 27 2017
StackToRegisterMappingCogit * VMMaker.oscog-eem.2111 uuid:
7c02b557-bdcc-4a91-92b1-7fc15f1e8605 Jan 27 2017


Cheers,
-- 
Dr. Ciprian TEODOROV
Enseignant-chercheur
ENSTA Bretagne

tél : 06 08 54 73 48
mail : ciprian.teodo...@gmail.com
www.teodorov.ro

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