Author gregory.p.smith
Recipients gregory.p.smith
Date 2008-11-27.20:57:08
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From Kristján Valur Jónsson (kristjan at on python-dev:

I came across this in socket.c:

        # _rbufsize is the suggested recv buffer size.  It is *strictly*
        # obeyed within readline() for recv calls.  If it is larger than
        # default_bufsize it will be used for recv calls within read().

What I worry about is the readline() case.  Is there a reason why we
want to strictly obey it for that function?  Note that in the
documentation for it says:

        # Use max, disallow tiny reads in a loop as they are very

The same argument surely applies for readline().

The reason I am fretting about this is that (and therefore specify bufsize=0 when createing their socket fileobjects,
presumably to make sure that write() operations are not buffered but
flushed immediately.  But this has the side effect of setting the
_rbufsize to 1, and so readline() calls become very slow.

I suggest that readline() be made to use at least defaultbufsize, like
read().  Any thoughts?
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2008-11-27 20:57:11gregory.p.smithsetmessageid: <>
2008-11-27 20:57:10gregory.p.smithlinkissue4448 messages
2008-11-27 20:57:09gregory.p.smithcreate