On OSX Lion w/ 8GB RAM, the first call gives me: [PhilMac:~/Documents/Smalltalk/2-MyWorkspaces/workspaceMemTest philippeback$] ./run.sh memtest.st uptime 0h0m0s memory 25,004,440 bytes old 19,213,728 bytes (76.80000000000001%) young 5,384 bytes (0.0%) used 19,219,112 bytes (76.9%) free 5,785,328 bytes (23.1%) GCs 5 (127ms between GCs) full 1 totalling 72ms (11.4% uptime), avg 72.0ms incr 4 totalling 11ms (1.7000000000000002% uptime), avg 2.8000000000000003ms tenures 0 allocating: 512 times 1024000 bytes =============================================================================== Notice: Errors in script loaded from /Users/philippeback/Documents/Smalltalk/2-MyWorkspaces/workspaceMemTest/ memtest.st =============================================================================== Errors in script loaded from /Users/philippeback/Documents/Smalltalk/2-MyWorkspaces/workspaceMemTest/ memtest.st ==== Startup Error: OutOfMemory ByteArray class(Behavior)>>basicNew: ByteArray class(Behavior)>>new: UndefinedObject>>DoIt in Block: [t6... SmallInteger(Integer)>>timesRepeat: UndefinedObject>>DoIt in Block: [:t6 | t1... Array class(SequenceableCollection class)>>new:streamContents: UndefinedObject>>DoIt in Block: [t4 := Array... Time class>>millisecondsToRun: BlockClosure>>timeToRun UndefinedObject>>DoIt Compiler>>evaluate:in:to:notifying:ifFail:logged: Compiler class>>evaluate:for:notifying:logged: Compiler class>>evaluate:for:logged: Compiler class>>evaluate:logged: DoItDeclaration>>import CodeImporter>>evaluate in Block: [:decl | value := decl import] OrderedCollection>>do: CodeImporter>>evaluate BasicCodeLoader>>installSourceFile: in Block: [codeImporter evaluate] BlockClosure>>on:do: BasicCodeLoader>>handleErrorsDuring:reference: BasicCodeLoader>>installSourceFile: BasicCodeLoader>>installSourceFiles in Block: [:reference | self installSourceFile: reference] OrderedCollection>>do: BasicCodeLoader>>installSourceFiles in Block: [sourceFiles... BlockClosure>>ensure: BasicCodeLoader>>installSourceFiles BasicCodeLoader>>activate BasicCodeLoader class(CommandLineHandler class)>>activateWith: DefaultCommandLineHandler>>handleSubcommand Got startup errors: OutOfMemory Now, I did a purge. Same results. Need to pass a parameter or something? This is on a fresh 2.0 + vmLatest Phil