bench: track Date.now() as upper bound reference (denoland#9922)

eugenehp · Mar 28, 2021 · 269ea88 · 269ea88
1 parent 00468bc
commit 269ea88
Showing 1 changed file with 16 additions and 4 deletions.
diff --git a/cli/bench/deno_common.js b/cli/bench/deno_common.js
@@ -20,8 +20,14 @@ function benchUrlParse() {
  });
 }
 
-function benchNow() {
- benchSync("now", 5e5, () => {
+function benchDateNow() {
+ benchSync("date_now", 5e5, () => {
+ Date.now();
+ });
+}
+
+function benchPerfNow() {
+ benchSync("perf_now", 5e5, () => {
  performance.now();
  });
 }
@@ -46,9 +52,15 @@ function benchReadZero() {
 }
 
 function main() {
+ // v8 builtin that's close to the upper bound non-NOPs
+ benchDateNow();
+ // A very lightweight op, that should be highly optimizable
+ benchPerfNow();
+ // A common "language feature", that should be fast
+ // also a decent representation of a non-trivial JSON-op
  benchUrlParse();
- benchNow();
- benchWriteNull();
+ // IO ops
  benchReadZero();
+ benchWriteNull();
 }
 main();