benchmark-crc32

Benchmark various crc32 implementations in JavaScript.

Steps to run benchmark:

• yarn or npm install or pnpm install to install dependencies.

CRC32

We compare crc, crc-32 and buffer-crc32 as those are the three most downloaded as per npm trends.

• yarn benchmark:crc32 or npm run benchmark:crc32 or pnpm benchmark:crc32 to run benchmark for crc32.
• yarn benchmark:crc32:web or npm run benchmark:crc32:web or pnpm benchmark:crc32:web to run benchmark for crc32 on the browser.

Example run

Node.js v16.4.0

CRC32 values returned for random buffer:
* crc: bbe00242
* crc-32: bbe00242
* buffer-crc32: bbe00242
* @aws-crypto/crc32: bbe00242

Benchmark:
crc x 418,858 ops/sec ±0.33% (91 runs sampled)
crc-32 x 426,337 ops/sec ±0.25% (96 runs sampled)
buffer-crc32 x 318,404 ops/sec ±0.33% (94 runs sampled)
@aws-crypto/crc32 x 74,763 ops/sec ±0.90% (95 runs sampled)
Fastest is crc-32

Brave browser v1.26.67 (Chromium: 91.0.4472.114)

CRC32 values returned for random buffer:
* crc: 5d92cd44
* crc-32: 5d92cd44
* buffer-crc32: 5d92cd44
* @aws-crypto/crc32: 5d92cd44

Benchmark:
crc x 376,443 ops/sec ±1.66% (62 runs sampled)
crc-32 x 370,629 ops/sec ±1.86% (61 runs sampled)
buffer-crc32 x 14,292 ops/sec ±1.34% (63 runs sampled)
@aws-crypto/crc32 x 56,918 ops/sec ±1.29% (62 runs sampled)
Fastest is crc

Firefox browser v78.10.1esr

CRC32 values returned for random buffer:
* crc: b82b29d7
* crc-32: b82b29d7
* buffer-crc32: b82b29d7
* @aws-crypto/crc32: b82b29d7

Benchmark: crc32.js:36:9
crc x 188,843 ops/sec ±0.48% (63 runs sampled)
crc-32 x 370,060 ops/sec ±0.85% (67 runs sampled)
buffer-crc32 x 80,874 ops/sec ±2.67% (64 runs sampled)
@aws-crypto/crc32 x 15,069 ops/sec ±1.78% (64 runs sampled)
Fastest is crc-32

CRC32C

We compare fast-crc32c, sse4_crc32 and junderw-crc32c.

• yarn benchmark:crc32c or npm run benchmark:crc32c or pnpm benchmark:crc32c to run benchmark for crc32c.
• yarn benchmark:crc32c:web or npm run benchmark:crc32c:web or pnpm benchmark:crc32c:web to run benchmark for crc32c on the browser.

Example run

Node.js v16.4.0

CRC32c values returned for random buffer:
* fast-crc32c: a51b7a5f
* sse4_crc32 (sw): a51b7a5f
* sse4_crc32 (hw): a51b7a5f
* junderw-crc32c: a51b7a5f

Benchmark:
fast-crc32c x 1,572,668 ops/sec ±0.46% (93 runs sampled)
sse4_crc32 (sw) x 1,550,894 ops/sec ±0.36% (91 runs sampled)
sse4_crc32 (hw) x 1,521,460 ops/sec ±1.16% (93 runs sampled)
junderw-crc32c x 419,697 ops/sec ±0.37% (87 runs sampled)
Fastest is fast-crc32c

Brave browser v1.26.67 (Chromium: 91.0.4472.114)

CRC32c values returned for random buffer:
* junderw-crc32c: 6b5b739d

Benchmark:
junderw-crc32c x 391,254 ops/sec ±0.83% (66 runs sampled)
Fastest is junderw-crc32c

Firefox browser v78.10.1esr

CRC32c values returned for random buffer:
* junderw-crc32c: 69c0767e

Benchmark:
junderw-crc32c x 371,923 ops/sec ±0.48% (67 runs sampled)
Fastest is junderw-crc32c