Charles Oliver Nutter a écrit : > Eugene Kuleshov wrote: > >> In my subjective tests, the StackMap calculation overhead is much >> higher then performance gain you'll get from the new verifier. This is >> actually by design of the new verifier, so pre-verification step when >> StackMap is generated runs off line and can take long, but >> verification at run time is really quick because it uses pre- >> calculated StackMap structures. >> The only chance to avoid that is to not use COMPUTE_FRAMES (skip the >> data flow analysis algorithm) and generate StackMap together with the >> bytecode if you know your code structure and type hierarchies. >> Eugene, even if you generate StackMap 'by hand', there is a problem if there is a resizing (GOTO => GOTO_W), because StackMap attribute can't be updated incrementally. In that case, ASM reparse the whole byte-code with COMPUTE_FRAMES enabled.
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