[Python-Dev] import too slow on NFS based systems
Daniel Braniss
danny at cs.huji.ac.il
Thu Jun 21 16:08:09 CEST 2012
> On Thu, 21 Jun 2012 13:17:01 +0300
> Daniel Braniss <danny at cs.huji.ac.il> wrote:
> > Hi,
> > when lib/python/site-packages/ is accessed via NFS, open/stat/access is very
> > expensive/slow.
> >
> > A simple solution is to use an in memory directory search/hash, so I was
> > wondering if this has been concidered in the past, if not, and I come
> > with a working solution for Unix (at least Linux/Freebsd) will it be
> > concidered.
>
> There is such a thing in Python 3.3, although some stat() calls are
> still necessary to know whether the directory caches are fresh.
> Can you give it a try and provide some feedback?
WOW!
with a sample python program:
in 2.7 there are:
stats open
2736 9037
in 3.3
288 57
now I have to fix my 2.7 to work with 3.3 :-)
any chance that this can be backported to 2.7?
cheers,
danny
More information about the Python-Dev
mailing list