[Python-Dev] xreadlines : readlines :: xrange : range

Andrew Kuchling akuchlin@mems-exchange.org
Thu, 4 Jan 2001 10:43:15 -0500

On Thu, Jan 04, 2001 at 03:59:05PM +0100, Thomas Wouters wrote:
>getc_unlocked(). getc() is faster than flockfile(f) + getc_unlocked(f) (+
>the rearranging of the function, use of PyTHREAD_ALLOW inside the outer loop,
>etc.) Significantly so when there is only one thread running (which is still

So it looks like the ALLOW_THREADS should be moved out of the for
loop.  This produced no measureable performance difference on Solaris;
I'll leave it to GvR to try it on Linux.  I wonder if FreeBSD has some
unusually slow thread operation?