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Re: [Discuss-gnuradio] Interesting performance observations on WX GUI FF
From: |
Stefan Gofferje |
Subject: |
Re: [Discuss-gnuradio] Interesting performance observations on WX GUI FFT sink |
Date: |
Mon, 09 May 2011 00:40:21 +0300 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110414 SUSE/3.1.10 Lightning/1.0b2 Mnenhy/0.8.3 Thunderbird/3.1.10 |
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On 05/08/2011 11:50 PM, Marcus D. Leech wrote:
> I discovered rather by accident that if my FFT sinks had averaging
> turned *OFF*, that even at
> modest input bandwidths on my dual-centrino laptop, they'd get wedged,
> even at relatively-low
> FFT frame rates (3 for example). But turn on averaging, and the
> systems resources required
> were reduced to the point that the display could support FFT display.
> I think this says something
> about how (in) efficient OpenGL is about rendering even simple 2D
> objects that change dynamically.
I have similar observations but without any hardware. The WX FFT totally
locks my Athlon 64 3800+, when displaying.
Just signal source -> FFT sink.
BUT - only the WX FFT. The QT FFT seems rather reasonable in performance
demands.
- --
(o_ Stefan Gofferje | SCLT, MCP, CCSA
//\ Reg'd Linux User #247167 | VCP #2263
V_/_ Heckler & Koch - the original point and click interface
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