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Re:Up to 4GB of Memory in WebAssembly by jfkebwjsbx on Thursday May 14, 2020 @07:17PM (#23186808)
Using 64 bits when you don't need them is the mistake, not the other way around.

Cache isn't infinite.

Re:Up to 4GB of Memory in WebAssembly by xscott on Thursday May 14, 2020 @07:20PM (#23186838)
Go ahead and use smaller types in your arrays of structs, but 32 bit loop variables is quietly asking for weird failures when your users run real data.