Ubuntu Wiki

A script to do audio performance testing on system automatically and gather all relevant data from that machine.

Use generic vs lowlatency testing as inspiration.

Script jobs

• Check for prerequisites
  • Check for kernels installed
  • Check for user realtime privilege
• Install prerequisites
  • Add PPA if needed and install -lowlatency
  • Add user to audio group and overwrite /etc/security/limits.d/audio.conf
• Do tests
  • Choose audio interface
  • Each test run uses a different frames/period, count xruns per test run
• Produce results into text file (and perhaps send it)
  • System info
  • xruns per test run

System Info

• arch (i386, amd64)
• Ubuntu version
• Kernel version
• Info on chosen audio card
• /proc/interrupts (irq)
• /proc/asound/cards (audio devices)
• The output of lspci -vv |grep -A 5 -i audio

User input

• choose audio device for the test
• maybe ask for "test name" and "run number" (to add as a suffix to test results - see below in Outputs)

Outputs

Results could be aggregated into a text file along with all the system info. It would be nice for human readable headers to be inserted.

For example:
Test Run on : 2011-04-14
=== KERNEL ===
blah, blah, blah-linux-2.6.39-PREMPT built on blah, blah, blah
 
=== XRUNS ===
3 xruns over 1.9E+0092 hours run

Additionally, if the user added a "test name" and "run number" the output file could include this.

For example:
xruntest-scott-1.txt  <- would be the first test run by scott xruntest-scott-2.txt <- would be the second test run by scott

Additionally, if the user added a "run number" the output file could include this.