[PlanetCCRMA] ccrma on laptop

[Aaron Heller]

--On Saturday, October 30, 2004 20:47 -0700 Mark Knecht
<markknecht at gmail.com> wrote:

> On Sat, 30 Oct 2004 23:51:38 -0300, Stephen Kelly <stephen.kelly at dal.ca>
> wrote:
>> Hi All,
> 
>> Anything that works especially well or especialy poorly?
>> Thanks so much,
>> Stephen
> 
> Download and burn 3-4 Live CDs - Knopix, Damn Small Linux, Feather
> Linux, Morphix, etc., and then take them to the store and boot the
> model you are interested in. Check lspci, glxgears, hdparm -tT
> /dev/hda on all of them. Don't buy a machine that won't run all of the
> Live CDs you take.

All good ideas.  I'd also try to run Benno Senoner's latency test suite
  http://www.gardena.net/benno/linux/audio/

This stresses the machine and kernel in various ways (graphics, disk copy,
writes...) and measures (and graphs) the impact on audio performance.  This
will let you know if the machine's speed, interrupt structure, and so forth
have the potential to support audio I/O with no xruns.

At this time, the latest download is
 http://www.gardena.net/benno/linux/latencytest-0.42-png.tar.gz

I had to make one small change to get it to compile on FC1 with a 2.4
kernel.  I have not tried to compile with 2.6.

Aaron Heller <heller at ai.sri.com>  Menlo Park, CA

*** rtc_latencytest.c   2004-10-26 19:34:55.000000000 -0700
--- rtc_latencytest.c~  1999-09-11 08:03:45.000000000 -0700
***************
*** 11,15 ****
  #include <sys/time.h>
  #include <signal.h>
! #include <linux/rtc.h>
  
  #include "gfx.h"
--- 11,15 ----
  #include <sys/time.h>
  #include <signal.h>
! #include <linux/mc146818rtc.h>
  
  #include "gfx.h"