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Re: [Discuss-gnuradio] Bug in gr_quadrature_demod_cf, or scheduler?


From: Johnathan Corgan
Subject: Re: [Discuss-gnuradio] Bug in gr_quadrature_demod_cf, or scheduler?
Date: Fri, 21 Sep 2007 11:34:16 -0700
User-agent: Thunderbird 1.5.0.13 (X11/20070824)

Steven Clark wrote:

> Do you have a sense of how much slower the regular atan2f function is
> than gr_fast_atan2f?

I don't think there were any formal benchmarks done, but IIRC the fast
atan2 reduced CPU utilization by a factor of 5 for a WFM demodulator.

-- 
Johnathan Corgan
Corgan Enterprises LLC
http://corganenterprises.com




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