23 Oct
2010
23 Oct
'10
10:57 a.m.
On 23 October 2010 07:43, david <gnome(a)hawaii.rr.com> wrote:
Joan Quintana wrote:
try MDZ - mandelbrot deep zoom, it uses the MPFR math library to go
beyond long-double precision to as deep as you have patience for. by
default for some peculiar reason it also uses 64 threads. makes the
system very unresponsive i promise.
http://jwm-art.net/mdz/
--
_
: http://jwm-art.net/
-audio/image/text/code
I had the idea in mind to test my machine (and trying to benchmark the
tests), loading the session with a chain of JACK clients, in order to know
the limits of my system and in what conditions the system is stressed, and
when I would have more chances of XRUNS.
The chain would be something like this.
*playing a midi file with Rosegarden (a midifile full of tracks)
*fluidsynth as a soft synth, loading a heavy soundfont.
*JACK RACK for LADSPA effects (load several processor consuming effects)
*recording the session into Ardour, at the same time that monitoring the
output to the speakers
Meanwhile I will monitor the system performance (processor & RAM). (I
thing that Conky System Monitor would do the task of saving a log file for
later parsing). I don't know if it is possible to fetch the number of XRuns
from a file or log.
Questions:
-how can I stress even more this test?
While it's doing all that, fire up some complex synthesizer patches in Pure
Data or csound or AmSynth or AMS or Zyn or some other synthesizer that does
a lot of processing to generate its sound. Synthesizer patches that generate
their own changing sounds would be great. Alsa Modular Synthesizer has a
living_phaser patch and probably other patches that do that.
Or you could download and install the trial version of the Bibble photo
processing program <http://www.bibblelabs.com/>. It is one of the most
processor and memory intensive programs I've ever encountered. Install it,
do some basic processing of an entire directory of large images, then have
it batch process the images ...
Another thought: add a Windows audio app running under WINE or on a virtual
machine running Windows.
Oh, and install XFractint and have it do a deep zoom somewhere into the
Mandelbrot set.