On 18/07/2020 9:20 am, Inada Naoki wrote:
It seems great improvement, but I am worrying about performance.
Adding more attributes to the code object will increase memory usage and importing time. Is there some estimation of the overhead?
Zero overhead (approximately). We are just replacing one compressed table with another at the C level. The other attributes are computed.
And I am worrying precise tracing blocks future advanced bytecode optimization. Can we omit precise tracing and line number information when optimization (`-O`) is enabled?
I don't think that is a good idea. Performing any worthwhile performance optimization requires that we can reason about the behavior of programs. Consistent behavior makes that much easier. Inconsistent "micro optimizations" make real optimizations harder.
On Fri, Jul 17, 2020 at 11:49 PM Mark Shannon email@example.com wrote:
I'd like to announce a new PEP.
It is mainly codifying that Python should do what you probably already thought it did :)
Should be uncontroversial, but all comments are welcome.
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