[Python-Dev] file (original) (raw)

Greg Ewing greg.ewing at canterbury.ac.nz
Mon Mar 1 01:31:17 CET 2010

Robert Collins wrote:

In the special case of probing for name.name.name.ext1, ...$ext2, ...$ext3, you generally hit the same pages and don't incur additional page in costs.

So then looking for a .pyc alongside a .py or vice versa should be almost free, and we shouldn't be worrying about it.

hot cache: % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 45.10 0.000368 92 4 getdents 0.00 0.000000 0 734 625 stat

Further supporting the idea that stat calls are negligible once the cache is warmed up.

-- Greg

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