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From: | Marcus D. Leech |
Subject: | Re: [Discuss-gnuradio] HELP! - Problem with radio application deploy |
Date: | Tue, 19 Nov 2013 19:40:48 -0500 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111108 Fedora/3.1.16-1.fc14 Thunderbird/3.1.16 |
I really appreciate the detailed explanation. I tried running gr_filter_design last night and it asked me to install SciPy, which I did not feel like doing at that time. I will try using 1MHz for my band, which may help get rid of the real-time running issue.Let's say you get a filter that's, oh, I dunno, 100 taps long. That filter has to process every sample, so, that's 5e7 X 100 taps, or roughly 5e9 FLOP/second. Just for that one filter. And your flow-graph is likely doing other things *and* it's having to get samples all the way through your network or USB stacks into the application layer as well, call that 100 instructions/sample. So, that's 5e7 x 100 = 5e9 OPS/second just to get your samples into the application. You're going to burn-up the cycles on your CPU prettyAgain, I appreciate your help with this matter.
quickly at 50Msps, even for doing "trivial" things. -- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org
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