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Re: [fluid-dev] Raspbian / Pi Zero - force hard float compile?

From: Geoff Plitt
Subject: Re: [fluid-dev] Raspbian / Pi Zero - force hard float compile?
Date: Fri, 1 Jun 2018 14:52:45 -0700

Hey Marcus,

I built with "-Denable-profiling=1", run with synth.verbose=true, sent your profiling commands, didn't see any profiling output. Am I missing something?

On Fri, Jun 1, 2018 at 2:11 AM, Marcus Weseloh <address@hidden> wrote:
Hi Geoff,

sorry for causing confusion with my typos. Teaches me not to write such technical posts on the go, without access to a console. Glad you got it sorted.

When you have it running and some time to spare, it would be very interesting to get some profiling data from the Pi Zero. To compile FluidSynth with profiling, you would need to enable it via cmake with:

Then start FluidSynth with the General User soundfont (without a MIDI file) and execute the following commands in the FluidSynth shell:

prof_set_notes 40
prof_set_print 1
prof_start 5 1000

The prof_set_notes number (40 in the above commands) should be chosen so that the total CPU percentage is below 100% in the profiling output (the number below "total %"). I always  aim for around 85%.
More information about the profiling feature can be found with "help profile" in the shell and in doc/FluidProfile_0004.pdf.



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