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Add node statistics tracking + reduce MPSC buffer to 8 chunks

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This commit is contained in:
Claude
2025-11-12 11:56:58 +00:00
parent dbb809261a
commit 8eafff0f0c
4 changed files with 165 additions and 5 deletions
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10
pmoparadise/examples/stream_block.rs
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@@ -212,12 +212,12 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
source_flac.push_block_id(END_OF_BLOCKS_SIGNAL); // Signal: no more blocks after this one
tracing::debug!("RadioParadiseStreamSource (FLAC) created with block {} + END signal", block.event);
// Calculate channel size to match max_lead_time
// With 50ms chunks and 3.0s lead time: 3.0 / 0.05 = 60 chunks
// Use SMALL channel size to make backpressure more reactive
// Instead of trying to buffer 3s of audio (60 chunks), use a much smaller buffer
// This forces tighter backpressure control
let max_lead_time = 3.0;
let chunk_duration_sec = 0.05;
let channel_size = ((max_lead_time / chunk_duration_sec) as usize).max(16);
tracing::debug!("Calculated channel size: {} chunks ({:.1}s buffer)", channel_size, channel_size as f64 * chunk_duration_sec);
let channel_size = 8; // Small buffer for reactive backpressure
tracing::debug!("Using channel size: {} chunks ({:.1}s buffer at 50ms/chunk)", channel_size, channel_size as f64 * 0.05);
let mut timer_flac = TimerNode::with_channel_size(max_lead_time, channel_size);
tracing::debug!("TimerNode (FLAC) created with {:.1}s max lead time, {} chunk buffer", max_lead_time, channel_size);