chore: Added a benchmark script for our sql parser (#2708)

bin/run-bench.js

@@ -1,3 +1,4 @@
+#!/usr/bin/env node
 /*
  * Copyright 2022 New Relic Corporation. All rights reserved.
  * SPDX-License-Identifier: Apache-2.0

test/benchmark/Readme.md

@@ -0,0 +1,18 @@
+## Running Benchmarks
+
+The easiest way to run all benchmarks is by using the npm script:
+
+```sh
+> npm run bench
+```
+
+If you need to run a single benchmark suite, for example the sql parser
+benchmarks, it is easiest to run and view the output by:
+
+```sh
+> ./bin/run-bench.js lib/db/query-parsers/sql.bench.js && \
+  cat benchmark_results/$(ls -1rt benchmark_results | tail -n 1)
+```
+
+Notice that we do not specify the leading "test/benchmark/" when providing
+the benchmark file we want to run.

test/benchmark/lib/db/query-parsers/sql.bench.js

@@ -0,0 +1,78 @@
+/*
+ * Copyright 2024 New Relic Corporation. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+'use strict'
+
+const parseSql = require('../../../../../lib/db/query-parsers/sql')
+const benchmark = require('../../../../lib/benchmark')
+const suite = benchmark.createBenchmark({ name: 'parseSql', runs: 200_000 })
+
+const tests = [
+  {
+    name: 'leading-multi-line-comment-single-line',
+    fn: leadingMultiLineCommentSingleLine
+  },
+  {
+    name: 'leading-multi-line-comment-multiple-lines',
+    fn: leadingMultiLineCommentMultipleLines
+  },
+  {
+    name: 'single-embedded-multi-line-comment',
+    fn: singleEmbeddedMultiLineComment
+  },
+  {
+    name: 'multiple-embedded-multi-line-comments',
+    fn: multipleEmbeddedMultiLineComments
+  },
+  {
+    name: 'select-statement',
+    fn: selectStatement
+  },
+  {
+    name: 'update-statement',
+    fn: updateStatement
+  },
+  {
+    name: 'delete-statement',
+    fn: deleteStatement
+  }
+]
+
+for (const test of tests) {
+  suite.add(test)
+}
+suite.run()
+
+function leadingMultiLineCommentSingleLine() {
+  parseSql(`/* insert into bar some stuff */ insert into foo (col1)`)
+}
+
+function leadingMultiLineCommentMultipleLines() {
+  parseSql(`/*insert into bar some stuff*/
+    insert into foo (col1) values('bar')
+  `)
+}
+
+function singleEmbeddedMultiLineComment() {
+  parseSql(`insert /* insert into bar */ into foo`)
+}
+
+function multipleEmbeddedMultiLineComments() {
+  parseSql(`insert /* comments! */ into /* insert into bar some stuff */ foo /* MOAR */ (col1)`)
+}
+
+function selectStatement() {
+  parseSql(
+    `with foobar (col1) as cte select * from foo as a join on cte using (col1) where a.bar = 'baz'`
+  )
+}
+
+function updateStatement() {
+  parseSql(`update foo set bar = 'baz' where col1 = 1`)
+}
+
+function deleteStatement() {
+  parseSql(`delete from foo where bar = 'baz'`)
+}