On 09/08/2011 11:49 AM, Måns Rullgård wrote: > Justin Ruggles <justin.rugg...@gmail.com> writes: > >> On 09/08/2011 07:46 AM, Luca Barbato wrote: >> >>> On 9/8/11 4:58 AM, Justin Ruggles wrote: >>>> From: Michael Niedermayer<michae...@gmx.at> >>> >>> What is the performance gain in hand unrolling this loop? >> >> On Athlon64 it goes from 60 cycles to 54 cycles. > > Which compiler? What about slightly modern hardware?
athlon64 - gcc 4.4.5 also tested: sandy bridge - gcc 4.5.2 before: 64 cycles after: 58 cycles -Justin _______________________________________________ libav-devel mailing list libav-devel@libav.org https://lists.libav.org/mailman/listinfo/libav-devel
