[Numpy-discussion] String sort

Charles R Harris charlesr.harris@gmail....
Tue Feb 12 13:07:06 CST 2008


On Feb 12, 2008 11:53 AM, Bruce Southey <bsouthey@gmail.com> wrote:

> Hi,
>
> I have a Opteron 248 (2.66GHz) that with gcc 4.1.0 (SUSE10.1?) that gives
> C qsort with C style compare: 0.650000
> C qsort with Python style compare: 0.640000
> NumPy newqsort: 0.360000
>
> I did notice that -O3 was essential to get the performance gain as -O2
> gave:
> C qsort with C style compare: 0.690000
> C qsort with Python style compare: 0.700000
> NumPy newqsort: 0.610000
>

Try -O2 -finline-functions, it should come in somewhere between -O2 and -O3

Chuck
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