Instrument tesselation and tile parsing

src/io/scheduler.rs

@@ -205,7 +205,12 @@ impl ThreadLocalState {
             }
             TileFetchResult::Tile { data, coords } => {
                 info!("parsing tile {} with {}bytes", &coords, data.len());
-                let tile = parse_tile_bytes(data).expect("failed to load tile");
+
+                let tile = {
+                    let _span_ =
+                        tracing::span!(tracing::Level::TRACE, "parse_tile_bytes").entered();
+                    parse_tile_bytes(data).expect("failed to load tile")
+                };
 
                 for to_load in &tile_request.layers {
                     if let Some(layer) = tile

src/tessellation/layer.rs

@@ -18,6 +18,7 @@ use crate::render::ShaderVertex;
 use crate::tessellation::{Tessellated, VertexConstructor, DEFAULT_TOLERANCE};
 
 impl<I: Add + From<lyon::lyon_tessellation::VertexId> + MaxIndex + Pod> Tessellated<I> for Layer {
+    #[tracing::instrument(skip_all)]
     fn tessellate(&self) -> Result<(VertexBuffers<ShaderVertex, I>, Vec<u32>), Error> {
         let mut buffer: VertexBuffers<ShaderVertex, I> = VertexBuffers::new();
         let mut feature_indices: Vec<u32> = Vec::new();