Hello, creating a new objects is quite fast, but i wonder, what if it could be made even faster for objects of fixed size (not variable sized ones) by using a #clone primitive instead of #basicNew? The trick to use #clone is, that we can keep a 'sample' in class instance variable: Mytestclass class instanceVariableNames: 'sample' Mytestclass class>>initialize sample := self basicNew and then: Mytestclass class>>new ^ sample clone initialize The problem, that i can't make a benchmark , which could really tell the difference between those two ways, so we could be 100% sure what is faster. Any ideas how to bench it? -- Best regards, Igor Stasenko AKA sig.