On Wed, Oct 21, 2020 at 12:03 AM Mark Shannon <m...@hotpy.org> wrote: > > Hi everyone, > > CPython is slow. We all know that, yet little is done to fix it. > > I'd like to change that. > I have a plan to speed up CPython by a factor of five over the next few > years. But it needs funding. >
> The overall aim is to speed up CPython by a factor of (approximately) five. > We aim to do this in four distinct stages, each stage increasing the speed of > CPython by (approximately) 50%. > This is a very bold estimate. Particularly, you're proposing a number of small tweaks in stage 2 and expecting that (combined) they can give a 50% improvement in overall performance? Do you have any details to back this up? You're not just asking for a proposal to be accepted, you're actually asking for (quite a bit of) money, and then hoping to find a contractor to do the actual work. That means you're expecting that anyone would be able to achieve this, given sufficient development time. BIG BIG concern: You're basically assuming that all this definition of performance is measured for repeated executions of code. That's how PyPy already works, and it most often suffers quite badly in startup performance to make this happen. Will your proposed changes mean that CPython has to pay the same startup costs that PyPy does? What would happen if $2M were spent on improving PyPy3 instead? ChrisA _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/3NBP3KLTMXNDJ2ME4QPSATW2ZIMKVICG/ Code of Conduct: http://python.org/psf/codeofconduct/
