json-as - npm Package Compare versions

Comparing version 1.1.19 to 1.1.20

assembly/__benches__/abc.bench.ts

@@ -8,2 +8,3 @@ import { JSON } from "..";
 
+const blackBoxArea = memory.data(64);
 expect(JSON.stringify(v1)).toBe(v2);
@@ -14,5 +15,6 @@
   () => {
-    inline.always(JSON.stringify(v1));
+    blackbox(inline.always(JSON.stringify(blackbox(v1))));
   },
-  64_000_00,
+  24_000_00,
+  v1.length << 1,
 );
@@ -23,5 +25,11 @@
   () => {
-    inline.always(JSON.parse<string>(v2));
+    blackbox(inline.always(JSON.parse<string>(blackbox(v2))));
   },
-  64_000_00,
+  24_000_00,
+  v2.length << 1,
 );
+
+function blackbox<T>(value: T): T {
+  store<T>(blackBoxArea, value);
+  return load<T>(blackBoxArea);
+}

assembly/__benches__/lib/bench.ts

@@ -1,3 +0,4 @@
-export function bench(description: string, routine: () => void, ops: u64 = 1_000_000): void {
+export function bench(description: string, routine: () => void, ops: u64 = 1_000_000, bytesPerOp: u64 = 0): void {
   console.log(" - Benchmarking " + description);
+
   let warmup = ops / 10;
@@ -7,13 +8,24 @@ while (--warmup) {
   }
-  const start = Date.now();
+
+  const start = performance.now();
+
   let count = ops;
-  while (count != 0) {
+  while (count--) {
     routine();
-    count--;
   }
-  const elapsed = Date.now() - start;
 
-  let opsPerSecond = (ops * 1000) / elapsed;
+  const end = performance.now();
+  const elapsed = Math.max(1, end - start);
 
-  console.log(`   Completed benchmark in ${formatNumber(elapsed)}ms at ${formatNumber(opsPerSecond)} ops/s\n`);
+  const opsPerSecond = f64(ops * 1000) / elapsed;
+
+  let log = `   Completed benchmark in ${formatNumber(u64(Math.round(elapsed)))}ms at ${formatNumber(u64(Math.round(opsPerSecond)))} ops/s`;
+
+  if (bytesPerOp > 0) {
+    const totalBytes = bytesPerOp * ops;
+    const mbPerSec = f64(totalBytes) / (elapsed / 1000) / (1000 * 1000);
+    log += ` @ ${formatNumber(u64(Math.round(mbPerSec)))}MB/s`;
+  }
+
+  console.log(log + "\n");
 }
@@ -20,0 +32,0 @@

assembly/index.ts

@@ -30,2 +30,4 @@ /// <reference path="./index.d.ts" />
 import { deserializeRaw } from "./deserialize/simple/raw";
+import { serializeString_SIMD } from "./serialize/simd/string";
+// import { deserializeString_SIMD } from "./deserialize/simd/string";
 
@@ -116,7 +118,7 @@ /**
       // }
-      // if (ASC_FEATURE_SIMD) {
-      //   serializeString_SIMD(data as string);
-      // } else {
-      serializeString(data as string);
-      // }
+      if (ASC_FEATURE_SIMD) {
+        serializeString_SIMD(data as string);
+      } else {
+        serializeString(data as string);
+      }
       return bs.out<string>();
@@ -184,3 +186,3 @@ // @ts-ignore: Supplied by transform
       // if (ASC_FEATURE_SIMD) {
-      // // @ts-ignore
+      //   // @ts-ignore
       //   return changetype<string>(deserializeString_SIMD(dataPtr, dataPtr + dataSize, __new(dataSize - 4, idof<string>())));
@@ -432,3 +434,3 @@ // } else {
 
-    constructor() {}
+    constructor() { }
 
@@ -549,3 +551,7 @@ // @ts-ignore: decorator
     } else if (isString<nonnull<T>>()) {
-      serializeString(src as string);
+      if (ASC_FEATURE_SIMD) {
+        serializeString_SIMD(src as string);
+      } else {
+        serializeString(src as string);
+      }
       // @ts-ignore: Supplied by transform
@@ -722,8 +728,8 @@ } else if (isDefined(src.__SERIALIZE_CUSTOM)) {
         // }
-        // if (ASC_FEATURE_SIMD) {
-        //   serializeString_SIMD(data as string);
-        // } else {
-        bs.saveState();
-        serializeString(data as string);
-        // }
+        if (ASC_FEATURE_SIMD) {
+          serializeString_SIMD(data as string);
+        } else {
+          bs.saveState();
+          serializeString(data as string);
+        }
         return bs.cpyOut<string>();
@@ -730,0 +736,0 @@ // @ts-ignore: Supplied by transform

assembly/serialize/simd/string.ts

@@ -6,2 +6,4 @@ import { bs } from "../../../lib/as-bs";
 
+const U00_MARKER = 13511005048209500;
+
 /**
@@ -17,3 +19,2 @@ * Serializes strings into their JSON counterparts using SIMD operations
   const SPLAT_32 = i16x8.splat(32); /* [ESC] */
-  const SPLAT_0 = i16x8.splat(0); /* 0 */
 
@@ -25,3 +26,3 @@ const srcSize = bytes(src);
 
-  bs.proposeSize(srcSize + 4);
+  bs.proposeSize(srcSize + 40);
 
@@ -33,2 +34,3 @@ store<u8>(changetype<usize>(bs.offset), 34); /* " */
     const block = v128.load(srcStart);
+
     v128.store(bs.offset, block);
@@ -45,12 +47,10 @@
       const lane_index = ctz(mask) << 1;
-      const dst_offset = bs.offset + lane_index;
       const src_offset = srcStart + lane_index;
       const code = load<u16>(src_offset) << 2;
       const escaped = load<u32>(SERIALIZE_ESCAPE_TABLE + code);
-
       mask &= mask - 1;
-
       if ((escaped & 0xffff) != BACK_SLASH) {
         bs.growSize(10);
-        store<u64>(dst_offset, 13511005048209500);
+        const dst_offset = bs.offset + lane_index;
+        store<u64>(dst_offset, U00_MARKER);
         store<u32>(dst_offset, escaped, 8);
@@ -61,2 +61,3 @@ v128.store(dst_offset, v128.load(src_offset, 2), 12);
         bs.growSize(2);
+        const dst_offset = bs.offset + lane_index;
         store<u32>(dst_offset, escaped);
@@ -72,97 +73,9 @@ v128.store(dst_offset, v128.load(src_offset, 2), 4);
 
-  const rem = srcEnd - srcStart;
-  if (rem & 8) {
-    const block = v128.load64_zero(srcStart);
-    v128.store64_lane(bs.offset, block, 0);
-
-    const backslash_indices = i16x8.eq(block, SPLAT_92);
-    const quote_indices = i16x8.eq(block, SPLAT_34);
-    const escape_indices = i16x8.lt_u(block, SPLAT_32);
-    const zero_indices = i16x8.eq(block, SPLAT_0);
-    const sieve = v128.and(v128.or(v128.or(backslash_indices, quote_indices), escape_indices), v128.not(zero_indices));
-
-    let mask = i16x8.bitmask(sieve);
-    while (mask != 0) {
-      let lane_index = ctz(mask) << 1;
-      const dst_offset = bs.offset + lane_index;
-      const src_offset = srcStart + lane_index;
-      const code = load<u16>(src_offset) << 2;
-      const escaped = load<u32>(SERIALIZE_ESCAPE_TABLE + code);
-      mask &= mask - 1;
-
-      if ((escaped & 0xffff) != BACK_SLASH) {
-        bs.growSize(10);
-        store<u64>(dst_offset, 13511005048209500);
-        store<u32>(dst_offset, escaped, 8);
-        while (lane_index < 6) {
-          store<u8>(bs.offset + lane_index, load<u8>(srcStart + lane_index, 2), 12);
-          lane_index += 2;
-        }
-        bs.offset += 10;
-      } else {
-        bs.growSize(2);
-        store<u32>(dst_offset, escaped);
-
-        while (lane_index < 6) {
-          store<u8>(bs.offset + lane_index, load<u8>(srcStart + lane_index, 2), 4);
-          lane_index += 2;
-        }
-        bs.offset += 2;
-      }
-    }
-
-    bs.offset += 8;
-    srcStart += 8;
-  }
-  if (rem & 4) {
-    const block = load<u32>(srcStart);
-    const codeA = block & 0xffff;
-    const codeB = (block >> 16) & 0xffff;
-
-    if (codeA == 92 || codeA == 34 || codeA < 32) {
-      const escaped = load<u32>(SERIALIZE_ESCAPE_TABLE + (codeA << 2));
-
-      if ((escaped & 0xffff) != BACK_SLASH) {
-        bs.growSize(10);
-        store<u64>(bs.offset, 13511005048209500);
-        store<u32>(bs.offset, escaped, 8);
-        bs.offset += 12;
-      } else {
-        bs.growSize(2);
-        store<u32>(bs.offset, escaped);
-        bs.offset += 4;
-      }
-    } else {
-      store<u16>(bs.offset, codeA);
-      bs.offset += 2;
-    }
-
-    if (codeB == 92 || codeB == 34 || codeB < 32) {
-      const escaped = load<u32>(SERIALIZE_ESCAPE_TABLE + (codeB << 2));
-
-      if ((escaped & 0xffff) != BACK_SLASH) {
-        bs.growSize(10);
-        store<u64>(bs.offset, 13511005048209500);
-        store<u32>(bs.offset, escaped, 8);
-        bs.offset += 12;
-      } else {
-        bs.growSize(2);
-        store<u32>(bs.offset, escaped);
-        bs.offset += 4;
-      }
-    } else {
-      store<u16>(bs.offset, codeB);
-      bs.offset += 2;
-    }
-
-    srcStart += 4;
-  }
-  if (rem & 2) {
+  while (srcStart <= srcEnd - 2) {
     const code = load<u16>(srcStart);
     if (code == 92 || code == 34 || code < 32) {
       const escaped = load<u32>(SERIALIZE_ESCAPE_TABLE + (code << 2));
-
       if ((escaped & 0xffff) != BACK_SLASH) {
         bs.growSize(10);
-        store<u64>(bs.offset, 13511005048209500);
+        store<u64>(bs.offset, U00_MARKER);
         store<u32>(bs.offset, escaped, 8);
@@ -179,2 +92,3 @@ bs.offset += 12;
     }
+    srcStart += 2;
   }
@@ -181,0 +95,0 @@

assembly/test.tmp.ts

 import { JSON } from "../assembly/index";
 import { bs } from "../lib/as-bs";
 
+
 @json
@@ -27,2 +28,3 @@ class Vec3 {
 
+
   @inline
@@ -208,2 +210,3 @@ __INITIALIZE(): this {
 
+
 @json
@@ -217,2 +220,3 @@ class Player {
 
+
   @omitif((self: this): boolean => self.age < 18)
@@ -266,2 +270,3 @@ age!: i32;
 
+
   @inline
@@ -268,0 +273,0 @@ __INITIALIZE(): this {

bench/abc.bench.ts

@@ -9,5 +9,6 @@ import { bench } from "./lib/bench.js";
   () => {
-    JSON.stringify(v1);
+    blackbox(JSON.stringify(blackbox(v1)));
   },
   64_000_00,
+  v1.length << 1,
 );
@@ -18,5 +19,11 @@
   () => {
-    JSON.parse(v2);
+    blackbox(JSON.parse(blackbox(v2)));
   },
   64_000_00,
+  v2.length << 1,
 );
+
+function blackbox<T>(value: T): T {
+  (globalThis as any).__blackhole = value;
+  return globalThis.__blackhole;
+}

bench/lib/bench.ts

@@ -1,27 +0,42 @@
-if (typeof console === "undefined") {
-  console = {
-    log: print,
-    error: print,
-    warn: print,
-  };
-}
+export function bench(description: string, routine: () => void, ops: number = 1_000_000, bytesPerOp: number = 0): void {
+  console.log(" - Benchmarking " + description);
 
-export function bench(description: string, routine: () => void, ops: number = 1_000_000): void {
-  console.log(" - Benchmarking " + description);
-  let warmup = ops / 10;
-  while (--warmup) {
+  let warmup = Math.floor(ops / 10);
+  while (warmup-- > 0) {
     routine();
   }
-  const start = Date.now();
+
+  const start = performance.now();
+
   let count = ops;
-  while (count !== 0) {
+  while (count-- > 0) {
     routine();
-    count--;
   }
-  const elapsed = Date.now() - start;
 
-  const opsPerSecond = Math.round((ops * 1000) / elapsed);
-  const format = new Intl.NumberFormat("en-US");
+  const end = performance.now();
+  const elapsed = Math.max(1, end - start);
 
-  console.log(`   Completed benchmark in ${format.format(elapsed)}ms at ${format.format(opsPerSecond)} ops/s\n`);
+  const opsPerSecond = (ops * 1000) / elapsed;
+
+  let log = `   Completed benchmark in ${formatNumber(Math.round(elapsed))}ms at ${formatNumber(Math.round(opsPerSecond))} ops/s`;
+
+  if (bytesPerOp > 0) {
+    const totalBytes = bytesPerOp * ops;
+    const mbPerSec = totalBytes / (elapsed / 1000) / (1000 * 1000);
+    log += ` @ ${formatNumber(Math.round(mbPerSec))}MB/s`;
+  }
+
+  console.log(log + "\n");
 }
+
+function formatNumber(n: number): string {
+  let str = n.toString();
+  let len = str.length;
+  let result = "";
+  let commaOffset = len % 3;
+  for (let i = 0; i < len; i++) {
+    if (i > 0 && (i - commaOffset) % 3 === 0) result += ",";
+    result += str.charAt(i);
+  }
+  return result;
+}

bench/runners/assemblyscript.js

@@ -13,2 +13,3 @@ const bytes = readbuffer("./build/" + arguments[0]);
     "Date.now": () => Date.now(),
+    "performance.now": () => performance.now(),
   },
@@ -15,0 +16,0 @@ });

CHANGELOG.md

 # Change Log
 
+## 2025-07-14 - 1.1.20
+
+- feat: enable SIMD string serialization
+
 ## 2025-06-30 - 1.1.19
@@ -4,0 +8,0 @@

package.json

 {
   "name": "json-as",
-  "version": "1.1.19",
+  "version": "1.1.20",
   "author": "Jairus Tanaka",
@@ -12,6 +12,7 @@ "repository": {
     "@assemblyscript/wasi-shim": "^0.1.0",
-    "@types/node": "^22.15.34",
+    "@types/node": "^24.0.8",
     "assemblyscript": "^0.28.2",
     "assemblyscript-prettier": "^3.0.1",
     "prettier": "^3.6.2",
+    "tinybench": "^4.0.1",
     "tsx": "^4.20.3",
@@ -18,0 +19,0 @@ "typescript": "^5.8.3"

README.md

@@ -9,3 +9,3 @@ <h6 align="center">
  </span>
-    AssemblyScript - v1.1.19
+    AssemblyScript - v1.1.20
   </pre>
@@ -395,3 +395,3 @@ </h6>
 | Vector3 Object  | 38 bytes   | 26,611,226 ops/s      | 32,160,804 ops/s        | 1,357 MB/s           | 1,348 MB/s             |
-| Alphabet String | 104 bytes  | 13,617,021 ops/s      | 18,390,804 ops/s        | 1,416 MB/s           | 1,986 MB/s             |
+| Alphabet String | 104 bytes  | 16,916,886 ops/s      | 18,390,804 ops/s        | 1,759 MB/s           | 1,986 MB/s             |
 | Small Object    | 88 bytes   | 24,242,424 ops/s      | 12,307,692 ops/s        | 2,133 MB/s           | 1,083 MB/s             |
@@ -406,3 +406,3 @@ | Medium Object   | 494 bytes  | 4,060,913 ops/s       | 1,396,160 ops/s         | 2,006 MB/s           | 689.7 MB/s             |
 | Vector3 Object  | 38 bytes   | 8,791,209 ops/s       | 5,369,12 ops/s          | 357.4 MB/s           | 204.3 MB/s             |
-| Alphabet String | 104 bytes  | 13,793,103 ops/s      | 14,746,544 ops/s        | 1,416 MB/s           | 1,592 MB/s             |
+| Alphabet String | 104 bytes  | 12,830,228 ops/s      | 12,140,296 ops/s        | 1,334 MB/s           | 1,311 MB/s             |
 | Small Object    | 88 bytes   | 8,376,963 ops/s       | 4,968,944 ops/s         | 737.1 MB/s           | 437.2 MB/s             |
@@ -409,0 +409,0 @@ | Medium Object   | 494 bytes  | 2,395,210 ops/s       | 1,381,693 ops/s         | 1,183 MB/s           | 682.5 MB/s             |

No alert changes

Worsened metrics

Total package byte prevSize

695451

-0.7%

Dev dependency count

8

14.29%

Lines of code

12477

-0.83%

No dependency changes