[Jack-Devel] How to profile jack cpu load?

[Tim]

On 07/13/2018 04:21 PM, oleg68 wrote:
> I'd maken a file test.sh, that downloads, builds and runs jackd.
> ------------------------------------------
> #/usr/bin/sh
> rm -rf jack2
> git clone git://github.com/jackaudio/jack2.git
> cd jack2
> ./waf configure --profile
> ./waf build
> echo
> echo "Running jackd"
> build/jackd -v -R -P40 -dalsa -d hw:Pro -r 48000 -p 1024 -n 2 -s -P
> ------------------------------------------
> 
> Than I ran:
> 
> ./test.sh | tee test.log
> 
> The resulting  test.log
> <http://jack-audio.10948.n7.nabble.com/file/t1525/test.log>   does not
> contain any 'Engine profiling activated' message


Hm, no ./waf install step?

Although it appears that the jackd you built is in fact
  the one that is running, it seems possible to me that
  it may be loading all of its libraries from a previous jack
  installation such as in /usr or /usr/local - libraries that
  were not built with the profiling.

Try the install step which should replace those libraries.

I find that it is always a good idea to run "sudo ldconfig"
  after playing around with jack install steps, so that the
  system really can find the correct libraries.
That is supposed to happen automatically with most software,
  but I found sometimes it doesn't with jack, possibly with
  just one of the jack versions, I can't recall which.

Tim.
The MusE sequencer project.