Filter Perfetto traces to `servo_profiling` spans and events only (#34209)

Signed-off-by: Delan Azabani <dazabani@igalia.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/ports/servoshell/lib.rs b/ports/servoshell/lib.rs
index 5fd4b9fbba0..c28ccbf79cd 100644
--- a/ports/servoshell/lib.rs
+++ b/ports/servoshell/lib.rs
@@ -52,7 +52,8 @@ pub fn init_tracing() {
             // Set up a PerfettoLayer for performance tracing.
             // The servo.pftrace file can be uploaded to https://ui.perfetto.dev for analysis.
             let file = std::fs::File::create("servo.pftrace").unwrap();
-            let perfetto_layer = tracing_perfetto::PerfettoLayer::new(std::sync::Mutex::new(file));
+            let perfetto_layer = tracing_perfetto::PerfettoLayer::new(std::sync::Mutex::new(file))
+                .with_filter_by_marker(|field_name| field_name == "servo_profiling");
             subscriber.with(perfetto_layer)
         };