From 93ccf11fc506b95221ce0c5eddaed9e0e6c8b3b5 Mon Sep 17 00:00:00 2001
From: jacqueline <me@jacqueline.id.au>
Date: Tue, 8 Aug 2023 13:47:08 +1000
Subject: Investigate and improve core pinning for resampler

---
 src/audio/audio_task.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/audio/audio_task.cpp')

diff --git a/src/audio/audio_task.cpp b/src/audio/audio_task.cpp
index 7c038730..75b44594 100644
--- a/src/audio/audio_task.cpp
+++ b/src/audio/audio_task.cpp
@@ -109,7 +109,10 @@ auto Timer::bytes_to_samples(uint32_t bytes) -> uint32_t {
 
 auto AudioTask::Start(IAudioSource* source, IAudioSink* sink) -> AudioTask* {
   AudioTask* task = new AudioTask(source, sink);
-  tasks::StartPersistent<tasks::Type::kAudio>([=]() { task->Main(); });
+  // Pin to CORE1 because codecs should be fixed point anyway, and being on
+  // the opposite core to the mixer maximises throughput in the worst case
+  // (some heavy codec like opus + resampling for bluetooth).
+  tasks::StartPersistent<tasks::Type::kAudio>(1, [=]() { task->Main(); });
   return task;
 }
 
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