STINNER Victor <vstin...@redhat.com> added the comment: Another example to explain my concern. In the Linux kernel, list macros used to prefetch next items: “(...) So the conclusion is: prefetches are absolutely toxic, even if the NULL ones are excluded.”
https://lwn.net/Articles/444336/ The lesson is that we should not let developers tune the compiler: let the CPU do that for you :-) For example, CPUs have evolved heuristics to prefetch data for you. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue37774> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
