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Re: [Discuss-gnuradio] LibUSRP vs LibUHD Performance on older machines

From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] LibUSRP vs LibUHD Performance on older machines
Date: Mon, 11 Mar 2013 11:29:21 -0400
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20111108 Fedora/3.1.16-1.fc14 Thunderbird/3.1.16

On 03/11/2013 02:00 AM, Tom Hendrick wrote:
Hello Josh, Thanks for responding.
I just tried your suggestion.

With a single USRP channel at 4MS/s and writing to four files at 500 MS/s (each of these 4 files is writing the same thing), I occasionally still see some overruns though it takes a lot longer for them to show up than with 4 channels at 1MS/s and they don't always show up eachtime  i run the script. The 4 channels at 1MS/s and writing to file at 500 MS/s causes overruns every time I run the script.
You presumably mean 500kSPS, rather than 500Msps here?

How are you decimating the incoming sample stream down to the file-write rate?

Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium

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