diff --git a/benchmark/README.md b/benchmark/README.md
index 6fd9a97bdf..17c733e6eb 100644
--- a/benchmark/README.md
+++ b/benchmark/README.md
@@ -235,12 +235,3 @@ it returns to accomplish what they need. This function reports timing
 data to the parent process (usually created by running `compare.js`, `run.js` or
 `scatter.js`).
 
-### v8ForceOptimization(method[, ...args])
-
-Force V8 to mark the `method` for optimization with the native function
-`%OptimizeFunctionOnNextCall()` and return the optimization status
-after that.
-
-It can be used to prevent the benchmark from getting disrupted by the optimizer
-kicking in halfway through. However, this could result in a less effective
-optimization. In general, only use it if you know what it actually does.
diff --git a/benchmark/common.js b/benchmark/common.js
index 6a9b2ba0f7..7ce180fdb7 100644
--- a/benchmark/common.js
+++ b/benchmark/common.js
@@ -229,17 +229,3 @@ Benchmark.prototype.report = function(rate, elapsed) {
     type: 'report'
   });
 };
-
-exports.v8ForceOptimization = function(method) {
-  if (typeof method !== 'function')
-    return;
-
-  const v8 = require('v8');
-  v8.setFlagsFromString('--allow_natives_syntax');
-
-  const args = Array.prototype.slice.call(arguments, 1);
-  method.apply(null, args);
-  eval('%OptimizeFunctionOnNextCall(method)');
-  method.apply(null, args);
-  return eval('%GetOptimizationStatus(method)');
-};