add benchmark script

bench/.gitignore

+!Makefile
+
+wasm-flate/
+function-reorder/
+export-reorder/
+operand-swap/
+dyn/
+
+/bench-zlib.txt

bench/Makefile

+.PHONY: all
+all: \
+	zlib/function-reorder/ANebjkXMZJwaaRMM \
+	zlib/export-reorder/ANebjkXMZJwaaRMM \
+	zlib/operand-swap/ANebjkXMZJwaaRMM \
+	zlib/function-reorder/Qg5lb3WN8a7eRFRb \
+	zlib/export-reorder/Qg5lb3WN8a7eRFRb \
+	zlib/operand-swap/Qg5lb3WN8a7eRFRb \
+	zlib/function-reorder/oVs8OISLiQH0RXlq \
+	zlib/export-reorder/oVs8OISLiQH0RXlq \
+	zlib/operand-swap/oVs8OISLiQH0RXlq
+
+.PHONY: bench-zlib
+bench-zlib: \
+	zlib/raw/wasm-flate \
+	zlib/function-reorder/ANebjkXMZJwaaRMM \
+	zlib/export-reorder/ANebjkXMZJwaaRMM \
+	zlib/operand-swap/ANebjkXMZJwaaRMM \
+	zlib/function-reorder/Qg5lb3WN8a7eRFRb \
+	zlib/export-reorder/Qg5lb3WN8a7eRFRb \
+	zlib/operand-swap/Qg5lb3WN8a7eRFRb \
+	zlib/function-reorder/oVs8OISLiQH0RXlq \
+	zlib/export-reorder/oVs8OISLiQH0RXlq \
+	zlib/operand-swap/oVs8OISLiQH0RXlq
+
+	node zlib/raw/bench.js | tee bench-zlib.txt
+	node zlib/function-reorder/ANebjkXMZJwaaRMM/bench.js | tee -a bench-zlib.txt
+	node zlib/export-reorder/ANebjkXMZJwaaRMM/bench.js | tee -a bench-zlib.txt
+	node zlib/operand-swap/ANebjkXMZJwaaRMM/bench.js | tee -a bench-zlib.txt
+	node zlib/function-reorder/Qg5lb3WN8a7eRFRb/bench.js | tee -a bench-zlib.txt
+	node zlib/export-reorder/Qg5lb3WN8a7eRFRb/bench.js | tee -a bench-zlib.txt
+	node zlib/operand-swap/Qg5lb3WN8a7eRFRb/bench.js | tee -a bench-zlib.txt
+	node zlib/function-reorder/oVs8OISLiQH0RXlq/bench.js | tee -a bench-zlib.txt
+	node zlib/export-reorder/oVs8OISLiQH0RXlq/bench.js | tee -a bench-zlib.txt
+	node zlib/operand-swap/oVs8OISLiQH0RXlq/bench.js | tee -a bench-zlib.txt
+
+zlib/raw/wasm-flate: ../node_modules/wasm-flate
+	cp -r $< $@
+
+# $(eval $(call embed,watermark,method))
+define embed
+.PHONY: zlib/$2/$1
+zlib/$2/$1: zlib/$2/$1/bench.js zlib/$2/$1/wasm-flate/wasm_flate.js zlib/$2/$1/wasm-flate/wasm_flate_bg.wasm
+
+zlib/$2/$1/bench.js: zlib/raw/bench.js
+	mkdir -p $${@D}
+	cp $$< $$@
+
+zlib/$2/$1/wasm-flate/wasm_flate.js: zlib/raw/wasm-flate
+	mkdir -p $${@D}
+	cp $$</wasm_flate.js $$@
+
+zlib/$2/$1/wasm-flate/wasm_flate_bg.wasm: zlib/raw/wasm-flate
+	mkdir -p $${@D}
+	snpi -m $2 -w $1 -o $$@ $$</wasm_flate_bg.wasm
+endef
+
+$(eval $(call embed,ANebjkXMZJwaaRMM,function-reorder))
+$(eval $(call embed,ANebjkXMZJwaaRMM,export-reorder))
+$(eval $(call embed,ANebjkXMZJwaaRMM,operand-swap))
+
+$(eval $(call embed,Qg5lb3WN8a7eRFRb,function-reorder))
+$(eval $(call embed,Qg5lb3WN8a7eRFRb,export-reorder))
+$(eval $(call embed,Qg5lb3WN8a7eRFRb,operand-swap))
+
+$(eval $(call embed,oVs8OISLiQH0RXlq,function-reorder))
+$(eval $(call embed,oVs8OISLiQH0RXlq,export-reorder))
+$(eval $(call embed,oVs8OISLiQH0RXlq,operand-swap))
+

bench/zlib/raw/bench.js

+(async function() {
+    const Crypto = require('crypto');
+    const assert = require('assert');
+    const fs = require('fs').promises;
+
+    // Generate random bytes
+    const size = 2_000_000;
+    const rawData = new Uint8Array(Crypto.randomBytes(size));
+
+    // Initialize wasm-flate
+    globalThis.self = globalThis;
+    const wasm = await WebAssembly.compile(await fs.readFile(`${__dirname}/wasm-flate/wasm_flate_bg.wasm`));
+    require(`${__dirname}/wasm-flate/wasm_flate.js`);
+    const flate = globalThis.wasm_bindgen;
+    await flate(wasm);
+
+    // Check if wasm-flate work properly
+    const compressed = flate.deflate_encode_raw(rawData);
+    assert.deepEqual(flate.deflate_decode_raw(compressed), rawData);
+
+    // Warm up
+    flate.deflate_encode_raw(rawData);
+    flate.deflate_encode_raw(rawData);
+    flate.deflate_encode_raw(rawData);
+
+    const count = 100;
+    const start = Date.now();
+    for (let i = 0; i < count; i++) {
+        flate.deflate_encode_raw(rawData);
+    }
+    const end = Date.now();
+    const duration_ms = end - start;
+
+    console.log(`${__dirname}\t${duration_ms / count}`);
+})();

package.json

@@ -15,5 +15,9 @@
     "source-map": "^0.7.3",
     "vim-wasm": "0.0.13",
     "wasm-flate": "^1.0.2-browser"
+  },
+  "devDependencies": {
+    "assert": "^2.0.0",
+    "crypto": "^1.0.1"
   }
 }