Greg Ewing <[EMAIL PROTECTED]> writes: > Daniel Stutzbach wrote: > >> With threaded code, every handler ends with its own dispatcher, so >> the processor can make fine-grained predictions. > > I'm still wondering whether all this stuff makes a > noticeable difference in real-life Python code, which > spends most of its time doing expensive things like > attribute lookups and function calls, rather than > fiddling with integers in local variables.
Does it? Typically, VM interpreters spend a large percentage of their cycles in opcode dispatch rather than opcode execution. Running WITH_TSC compiled Python on some computation heavy application (Mercurial maybe?) processing a typical workload would be interesting. Also, I'd estimate that operations such as string concat and list append (opcode BINARY_ADD) are fairly common, even in real-life Python code. Cheers, -jakob _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
