Nic Watson <pythonb...@nicwatson.org> added the comment:
I'll add one more system I/O call that's not GIL-wrapped in the mmap module that can take some time: mmap itself. mmap on Linux with MAP_POPULATE (0x8000) as the flags can take quite a bit of time. That's the flag that prefaults the memory range. MAP_POPULATE has been around since Linux 2.5.46. I know that MAP_POPULATE isn't explicitly supported in the module, but mmap.mmap does take arbitrary flags, so it isn't exactly unsupported either. ---------- nosy: +jnwatson _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue1572968> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
