Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/third_party/rust/tracing/benches/span_fields.rs b/third_party/rust/tracing/benches/span_fields.rs
new file mode 100644
index 0000000000..5ad8289826
--- /dev/null
+++ b/third_party/rust/tracing/benches/span_fields.rs
@@ -0,0 +1,23 @@
+use criterion::{criterion_group, criterion_main, Criterion};
+use tracing::{span, Level};
+
+mod shared;
+
+fn bench(c: &mut Criterion) {
+    shared::for_all_recording(&mut c.benchmark_group("span_fields"), |b| {
+        b.iter(|| {
+            let span = span!(
+                Level::TRACE,
+                "span",
+                foo = "foo",
+                bar = "bar",
+                baz = 3,
+                quuux = tracing::field::debug(0.99)
+            );
+            criterion::black_box(span)
+        })
+    });
+}
+
+criterion_group!(benches, bench);
+criterion_main!(benches);