instruction timings / optimization ?

James Ladd james_ladd at hotmail.com
Fri Sep 18 16:52:09 PDT 2009


Hi All,

A couple of questions which I hope are appropriate for this list:

1. Is there a document that details each VM instruction and the time it takes in cycles on
    a particular architecture?

    I ask because often on the http://www.masm32.com/board/index.php forum they provide
    CPU cycle timings for x86 instructions enabling you to modify code for better performance.

    I'd like to use this information when generating bytecode for my Smalltalk implementation
    for the JVM.

2. Would anyone else find this information useful ?

Rgs, James.

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