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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: Sat, 2 Jun 2018 10:31:29 -0700
That worked!

By the way, the performance is a ton better once floats were enabled.

Profiling results:

hardware: Raspberry Pi Zero -- Linux raspberrypi 4.14.34+ #1110 Mon Apr 16 14:51:42 BST 2018 armv6l GNU/Linux
fluidsynth version: 2.0.0.beta1 
build:   cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_FLAGS_RELEASE="-ffast-math -O3" -Denable-profiling=1 -Denable-floats=true ..
params: prof_set_notes 50, prof_set_print 1, prof_start 5 1000



 fluidsynth Number of measures(n_prof):5, duration of one mesure(dur):1000ms
  fluidsynth 
  fluidsynth Profiling time(mm:ss): Total=0:5  Remainder=0:5, press <ENTER> to cancel
  fluidsynth  +417ms
  fluidsynth  ------------------------------------------------------------------------------
  fluidsynth  Duration(microsecond) and cpu loads(%) (sr: 44100 Hz, sp: 22.68 microsecond)
  fluidsynth  ------------------------------------------------------------------------------
  fluidsynth  Code under profiling       |Voices|       Duration (microsecond)   |  Load(%)
  fluidsynth                             |   nbr|       min|       avg|       max|
  fluidsynth  ---------------------------|------|--------------------------------|----------
  fluidsynth  synth_write_* ------------>|    50|   1168.00|   1233.01|   1415.00|  84.962
  fluidsynth  synth_one_block ---------->|    50|   1150.00|   1212.99|   1374.00|  83.582
  fluidsynth  synth_one_block:clear ---->|    50|      3.00|      5.15|     85.00|   0.355
  fluidsynth  synth_one_block:one voice->|     1|     18.00|     20.73|    118.00|   1.428
  fluidsynth  synth_one_block:all voices>|    50|    990.00|   1041.04|   1184.00|  71.734
  fluidsynth  synth_one_block:reverb --->|     0|    107.00|    113.22|    190.00|   7.802
  fluidsynth  synth_one_block:chorus --->|     0|     35.00|     46.79|    142.00|   3.224
  fluidsynth  voice:note --------------->| no profiling available
  fluidsynth  voice:release ------------>| no profiling available
  fluidsynth  ------------------------------------------------------------------------------
  fluidsynth  Cpu loads(%) (sr: 44100 Hz, sp: 22.68 microsecond) and maximum voices
  fluidsynth  ------------------------------------------------------------------------------
  fluidsynth  nVoices| total(%)|voices(%)| reverb(%)|chorus(%)| voice(%)|estimated maxVoices
  fluidsynth  -------|---------|---------|----------|---------|---------|-------------------
  fluidsynth       50|   84.962|   73.936|     7.802|    3.224|    1.435|               62
  fluidsynth 
  fluidsynth Profiling time(mm:ss): Total=0:5  Remainder=0:4, press <ENTER> to cancel
  fluidsynth  +624ms
  fluidsynth  ------------------------------------------------------------------------------
  fluidsynth  Duration(microsecond) and cpu loads(%) (sr: 44100 Hz, sp: 22.68 microsecond)
  fluidsynth  ------------------------------------------------------------------------------
  fluidsynth  Code under profiling       |Voices|       Duration (microsecond)   |  Load(%)
  fluidsynth                             |   nbr|       min|       avg|       max|
  fluidsynth  ---------------------------|------|--------------------------------|----------
  fluidsynth  synth_write_* ------------>|    50|   1168.00|   1232.86|   1415.00|  84.952
  fluidsynth  synth_one_block ---------->|    50|   1150.00|   1213.04|   1374.00|  83.586
  fluidsynth  synth_one_block:clear ---->|    50|      3.00|      5.07|     85.00|   0.349
  fluidsynth  synth_one_block:one voice->|     1|     17.00|     20.73|    122.00|   1.428
  fluidsynth  synth_one_block:all voices>|    50|    989.00|   1041.04|   1184.00|  71.734
  fluidsynth  synth_one_block:reverb --->|     0|    107.00|    113.37|    200.00|   7.812
  fluidsynth  synth_one_block:chorus --->|     0|     35.00|     46.72|    142.00|   3.219
  fluidsynth  voice:note --------------->| no profiling available
  fluidsynth  voice:release ------------>| no profiling available
  fluidsynth  ------------------------------------------------------------------------------
  fluidsynth  Cpu loads(%) (sr: 44100 Hz, sp: 22.68 microsecond) and maximum voices
  fluidsynth  ------------------------------------------------------------------------------
  fluidsynth  nVoices| total(%)|voices(%)| reverb(%)|chorus(%)| voice(%)|estimated maxVoices
  fluidsynth  -------|---------|---------|----------|---------|---------|-------------------
  fluidsynth       50|   84.952|   73.921|     7.812|    3.219|    1.435|               62
  fluidsynth 
  fluidsynth Profiling time(mm:ss): Total=0:5  Remainder=0:3, press <ENTER> to cancel
  fluidsynth  ------------------------------------------------------------------------------
  fluidsynth  Duration(microsecond) and cpu loads(%) (sr: 44100 Hz, sp: 22.68 microsecond)
  fluidsynth  ------------------------------------------------------------------------------
  fluidsynth  Code under profiling       |Voices|       Duration (microsecond)   |  Load(%)
  fluidsynth                             |   nbr|       min|       avg|       max|
  fluidsynth  ---------------------------|------|--------------------------------|----------
  fluidsynth  synth_write_* ------------>|    50|   1168.00|   1232.97|   1415.00|  84.960
  fluidsynth  synth_one_block ---------->|    50|   1150.00|   1213.16|   1374.00|  83.594
  fluidsynth  synth_one_block:clear ---->|    50|      3.00|      5.05|     85.00|   0.348
  fluidsynth  synth_one_block:one voice->|     1|     17.00|     20.73|    122.00|   1.429
  fluidsynth  synth_one_block:all voices>|    50|    989.00|   1041.12|   1184.00|  71.740
  fluidsynth  synth_one_block:reverb --->|     0|    107.00|    113.56|    200.00|   7.825
  fluidsynth  synth_one_block:chorus --->|     0|     35.00|     46.61|    142.00|   3.212
  fluidsynth  voice:note --------------->| no profiling available
  fluidsynth  voice:release ------------>| no profiling available
  fluidsynth  ------------------------------------------------------------------------------
  fluidsynth  Cpu loads(%) (sr: 44100 Hz, sp: 22.68 microsecond) and maximum voices
  fluidsynth  ------------------------------------------------------------------------------
  fluidsynth  nVoices| total(%)|voices(%)| reverb(%)|chorus(%)| voice(%)|estimated maxVoices
  fluidsynth  -------|---------|---------|----------|---------|---------|-------------------
  fluidsynth       50|   84.960|   73.923|     7.825|    3.212|    1.435|               62
  fluidsynth 
  fluidsynth Profiling time(mm:ss): Total=0:5  Remainder=0:2, press <ENTER> to cancel

Thanks!

On Sat, Jun 2, 2018 at 2:36 AM, Marcus Weseloh <address@hidden> wrote:
Hi Geoff,

2018-06-01 23:52 GMT+02:00 Geoff Plitt <address@hidden>:
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?

That is strange... did you see any errors in the output? Oh, and you'll need Fluidsynth compiled from master or the 2.0 beta version.

I usually write the profiling commands to a text file:

prof.txt
--------
prof_set_notes 40
prof_set_print 1
prof_start 5 1000
---------

Then start FluidSynth like this:

$ fluidsynth -a alsa /path/to/Soundfont.sf2 -f /path/to/prof.txt

Cheers,

    Marcus


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