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From: Tim Prince <TimothyPrince@sbcglobal.net>
To: cygwin@cygwin.com
Subject: Re: Performance question
Date: Mon, 07 Apr 2008 14:35:00 -0000	[thread overview]
Message-ID: <47FA3126.4010303@sbcglobal.net> (raw)
In-Reply-To: <47FA2338.7060202@w1hkj.com>

w1hkj wrote:
> We are porting a real time data acquisition program for amateur radio 
> digital signal processing.  The program, fldigi, uses the Fast Light 
> Tool Kit and and a number of support libraries including PortAudio and 
> Sndfile.  The source code for this program can be found at 
> http://www.w1hkj.com.  fldigi is licensed under the GPL.
> 
> The port to Windows using Cygwin works very well.  There is just one 
> issue that needs to be addressed.  Several test platforms are used to 
> gauge performance, including an
> 
> HP notebook, 900 Mhz Athalon, 256 Mg RAM, and
> Dell Dimension 3000, dual processor 3.0 GHz, 1 G RAM.
> 
> There is is very significant difference in cpu usage between running the 
> application from the Cygwin X-terminal and running from the run command 
> (with the cygwin1.dll) from Windows.
> 
> System       X-term      Windows-Run
> HP Athalon   33%           100%
> Dell 3000    3 %            55%
> 
> 
> We would appreciate any assistance or suggestions on how to improve the 
> performance when linking to cygwin1.dll.
> 
If you are running single thread, with HT enabled, a 50% performance meter 
indication on the Dell is entirely normal.  Xterm performance questions 
would be appropriate to that mailing list.

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  parent reply	other threads:[~2008-04-07 14:35 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-07 13:34 w1hkj
2008-04-07 14:05 ` Performance question/ amateur radio DSP Mike Marchywka
2008-04-07 14:35 ` Tim Prince [this message]
2008-04-07 20:25 ` Performance question Brian Dessent
  -- strict thread matches above, loose matches on Subject: below --
2002-06-10  2:53 performance question Suman Kumar Ray

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