[pskmail] Speed tests with pskmail_server on windows hardware
- From: Rein Couperus <rein@xxxxxxxxxxxx>
- To: pskmail@xxxxxxxxxxxxx
- Date: Thu, 26 Aug 2010 14:47:04 +0200 (CEST)
I have done a number of comparative tests with a windows 2000 laptop (compaq
M700),
to find out what is the best method to run a server on windoze hardware.
This laptop has 256 MB memory, and a CPU frequency of 745 MHz.
Results with andLinux running fldigi and the server on windows2000 pro:
* Pulseaudio not possible, TX intermittent. 100% CPU on transmit.
* Portaudio decodes PSK500 ok, 70-100% CPU when sending PSK500 or PSK500R.
After starting 1 windows application (CPU monitor) sending PSK500R or PSK500
with
bad quality, unable to decode on the other end. Connection degrades to
PSK250R/MFSK32.
This situation remains after killing the windows app.
Results after booting puppy linux live CD with the pskmail server on the same
machine,
and making a 512 MB pup-save image + puppy swap on C:\ :
* 100% decode and TX of PSK500 and PSK500R, no problem whatsoever.
This shows that on meager hardware it is still possible to run a server,
provided
you use the puppy version or native linux.
If you have meager hardware available which you can dedicate to the project,
there are 3 possibilities which I have thoroughly tested:
* Use Xubuntu 10.04 LTS
* Use Ubuntu server with TightVNC as a headless system (here running on a
eeePC701)
* Use the puppy liveCD (probably the easiest, which minimal config effort).
The puppy solution gives you the best speed...
73,
Rein PA0R
--
http://pa0r.blogspirit.com
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