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.teodorov@gmail.com www.teodorov.ro