Add context creation benchmark to isolate (#41511)

GitOrigin-RevId: 5853adaf2070bfb9452910ceb75c61ed78da832d

Author: goffrie

Cargo.lock

@@ -131,6 +131,7 @@ async-broadcast = { workspace = true }
 async-channel = { workspace = true }
 common = { workspace = true, features = ["testing"] }
 database = { workspace = true, features = ["testing"] }
+divan = { workspace = true }
 errors = { workspace = true, features = ["testing"] }
 hyper = { workspace = true }
 keybroker = { workspace = true, features = ["testing"] }
@@ -151,5 +152,9 @@ usage_tracking = { workspace = true, features = ["testing"] }
 value = { workspace = true, features = ["testing"] }
 vector = { workspace = true, features = ["testing"] }
 
+[[bench]]
+name = "new_context"
+harness = false
+
 [lints]
 workspace = true

crates/isolate/Cargo.toml

@@ -0,0 +1,32 @@
+use deno_core::v8;
+use isolate::ConcurrencyLimiter;
+use runtime::prod::ProdRuntime;
+
+fn main() {
+    isolate::client::initialize_v8();
+    divan::main();
+}
+
+#[divan::bench]
+fn create_context(bencher: divan::Bencher) {
+    let tokio_rt = tokio::runtime::Builder::new_multi_thread().build().unwrap();
+    let rt = ProdRuntime::new(&tokio_rt);
+    let limiter = ConcurrencyLimiter::unlimited();
+    let mut isolate = isolate::isolate::Isolate::new(rt.clone(), None, limiter.clone());
+    bencher.bench_local(|| {
+        let mut scope = isolate.handle_scope();
+        v8::Context::new(&mut scope, v8::ContextOptions::default());
+    });
+}
+
+#[divan::bench]
+fn create_isolate(bencher: divan::Bencher) {
+    let tokio_rt = tokio::runtime::Builder::new_multi_thread().build().unwrap();
+    let rt = ProdRuntime::new(&tokio_rt);
+    let limiter = ConcurrencyLimiter::unlimited();
+    bencher.bench(|| {
+        let mut isolate = isolate::isolate::Isolate::new(rt.clone(), None, limiter.clone());
+        let mut scope = isolate.handle_scope();
+        v8::Context::new(&mut scope, v8::ContextOptions::default());
+    });
+}