Docs: update benchmarks for latest versions, add ARM64 results

lovell · Dec 20, 2022 · da0b594 · da0b594
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diff --git a/docs/performance.md b/docs/performance.md
@@ -2,47 +2,63 @@
 
 A test to benchmark the performance of this module relative to alternatives.
 
+Greater libvips performance can be expected with caching enabled (default)
+and using 8+ core machines, especially those with larger L1/L2 CPU caches.
+
+The I/O limits of the relevant (de)compression library will generally determine maximum throughput.
+
 ## The contenders
 
-* [jimp](https://www.npmjs.com/package/jimp) v0.16.1 - Image processing in pure JavaScript. Provides bicubic interpolation.
-* [mapnik](https://www.npmjs.org/package/mapnik) v4.5.9 - Whilst primarily a map renderer, Mapnik contains bitmap image utilities.
+* [jimp](https://www.npmjs.com/package/jimp) v0.16.2 - Image processing in pure JavaScript. Provides bicubic interpolation.
 * [imagemagick](https://www.npmjs.com/package/imagemagick) v0.1.3 - Supports filesystem only and "*has been unmaintained for a long time*".
-* [gm](https://www.npmjs.com/package/gm) v1.23.1 - Fully featured wrapper around GraphicsMagick's `gm` command line utility.
+* [gm](https://www.npmjs.com/package/gm) v1.25.0 - Fully featured wrapper around GraphicsMagick's `gm` command line utility.
 * [@squoosh/lib](https://www.npmjs.com/package/@squoosh/lib) v0.4.0 - Image libraries transpiled to WebAssembly, includes GPLv3 code.
 * [@squoosh/cli](https://www.npmjs.com/package/@squoosh/cli) v0.7.2 - Command line wrapper around `@squoosh/lib`, avoids GPLv3 by spawning process.
-* sharp v0.31.0 / libvips v8.13.1 - Caching within libvips disabled to ensure a fair comparison.
+* sharp v0.31.3 / libvips v8.13.3 - Caching within libvips disabled to ensure a fair comparison.
 
 ## The task
 
 Decompress a 2725x2225 JPEG image,
 resize to 720x588 using Lanczos 3 resampling (where available),
 then compress to JPEG at a "quality" setting of 80.
 
-## Test environment
+## Results
 
-* AWS EC2 eu-west-1 [c6a.xlarge](https://aws.amazon.com/ec2/instance-types/c6a/) (4x AMD EPYC 7R13)
-* Ubuntu 22.04 (ami-051f7c00cb18501ee)
-* Node.js 16.17.0
+### AMD64
 
-## Results
+* AWS EC2 eu-west-1 [c6a.xlarge](https://aws.amazon.com/ec2/instance-types/c6a/) (4x AMD EPYC 7R13)
+* Ubuntu 22.04 (ami-026e72e4e468afa7b)
+* Node.js 16.19.0
 
 | Module             | Input  | Output | Ops/sec | Speed-up |
 | :----------------- | :----- | :----- | ------: | -------: |
-| jimp               | buffer | buffer |    0.96 |      1.0 |
-| squoosh-cli        | file   | file   |    1.10 |      1.1 |
-| squoosh-lib        | buffer | buffer |    1.87 |      1.9 |
-| mapnik             | buffer | buffer |    3.48 |      3.6 |
-| gm                 | buffer | buffer |    8.53 |      8.9 |
-| gm                 | file   | file   |    8.60 |      9.0 |
-| imagemagick        | file   | file   |    9.30 |      9.7 |
-| sharp              | stream | stream |   32.86 |     34.2 |
-| sharp              | file   | file   |   34.82 |     36.3 |
-| sharp              | buffer | buffer |   35.41 |     36.9 |
+| jimp               | buffer | buffer |    0.82 |      1.0 |
+| squoosh-cli        | file   | file   |    1.05 |      1.3 |
+| squoosh-lib        | buffer | buffer |    1.19 |      1.5 |
+| gm                 | buffer | buffer |    8.47 |     10.3 |
+| gm                 | file   | file   |    8.58 |     10.5 |
+| imagemagick        | file   | file   |    9.23 |     11.3 |
+| sharp              | stream | stream |   33.23 |     40.5 |
+| sharp              | file   | file   |   35.22 |     43.0 |
+| sharp              | buffer | buffer |   35.70 |     43.5 |
 
-Greater libvips performance can be expected with caching enabled (default)
-and using 8+ core machines, especially those with larger L1/L2 CPU caches.
+### ARM64
 
-The I/O limits of the relevant (de)compression library will generally determine maximum throughput.
+* AWS EC2 eu-west-1 [c7g.xlarge](https://aws.amazon.com/ec2/instance-types/c7g/) (4x ARM Graviton3)
+* Ubuntu 22.04 (ami-02142ceceb3933ff5)
+* Node.js 16.19.0
+
+| Module             | Input  | Output | Ops/sec | Speed-up |
+| :----------------- | :----- | :----- | ------: | -------: |
+| jimp               | buffer | buffer |    0.84 |      1.0 |
+| squoosh-cli        | file   | file   |    1.12 |      1.3 |
+| squoosh-lib        | buffer | buffer |    2.11 |      2.5 |
+| gm                 | buffer | buffer |   10.39 |     12.4 |
+| gm                 | file   | file   |   10.40 |     12.4 |
+| imagemagick        | file   | file   |   10.73 |     12.8 |
+| sharp              | stream | stream |   33.63 |     40.0 |
+| sharp              | file   | file   |   34.91 |     41.6 |
+| sharp              | buffer | buffer |   35.72 |     42.5 |
 
 ## Running the benchmark test