On 28/10/20 2:53 am, Ceresa Jean-Jacques wrote:
Hi,
>I did look through the sfloader code and I can see it's not easy to
restructure it to use multiple threads.
>Still, I think parallel loading of the soundfonts would be a good
optimization that would benefit every application using Fluidsynth.
Before doing any attempt to restructure it to use multiple threads,
may I suggest you doing a simple test to check where is the bottleneck ?.
- 1) doesn't the bottleneck is in SF3 time decoding ?.
- 2) doesn't the bottleneck is in disk file reading ?.
I have two soundfonts, FluidR3_Mono.sf2 (99Mb) / sf3 (13Mb), and
piano.sf2 (238Mb) / sf3 (22Mb).
The SF3 files are taking ~5 seconds each to load. The SF2 files take
400-500ms, despite being 7-10x the size, so the bottleneck is not disk I/O.
Unfortunately my debugger/profile (Visual Studio) isn't seeing symbols
inside my fluidsynth.dll in order for me to profile it right now.
Hamish
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