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Docs: update benchmarks for latest versions, add ARM64 results

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Lovell Fuller 2022-12-20 19:49:29 +00:00
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A test to benchmark the performance of this module relative to alternatives. 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 ## The contenders
* [jimp](https://www.npmjs.com/package/jimp) v0.16.1 - Image processing in pure JavaScript. Provides bicubic interpolation. * [jimp](https://www.npmjs.com/package/jimp) v0.16.2 - 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.
* [imagemagick](https://www.npmjs.com/package/imagemagick) v0.1.3 - Supports filesystem only and "*has been unmaintained for a long time*". * [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/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. * [@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 ## The task
@ -18,31 +22,43 @@ Decompress a 2725x2225 JPEG image,
resize to 720x588 using Lanczos 3 resampling (where available), resize to 720x588 using Lanczos 3 resampling (where available),
then compress to JPEG at a "quality" setting of 80. then compress to JPEG at a "quality" setting of 80.
## Test environment ## Results
### AMD64
* AWS EC2 eu-west-1 [c6a.xlarge](https://aws.amazon.com/ec2/instance-types/c6a/) (4x AMD EPYC 7R13) * AWS EC2 eu-west-1 [c6a.xlarge](https://aws.amazon.com/ec2/instance-types/c6a/) (4x AMD EPYC 7R13)
* Ubuntu 22.04 (ami-051f7c00cb18501ee) * Ubuntu 22.04 (ami-026e72e4e468afa7b)
* Node.js 16.17.0 * Node.js 16.19.0
## Results
| Module | Input | Output | Ops/sec | Speed-up | | Module | Input | Output | Ops/sec | Speed-up |
| :----------------- | :----- | :----- | ------: | -------: | | :----------------- | :----- | :----- | ------: | -------: |
| jimp | buffer | buffer | 0.96 | 1.0 | | jimp | buffer | buffer | 0.82 | 1.0 |
| squoosh-cli | file | file | 1.10 | 1.1 | | squoosh-cli | file | file | 1.05 | 1.3 |
| squoosh-lib | buffer | buffer | 1.87 | 1.9 | | squoosh-lib | buffer | buffer | 1.19 | 1.5 |
| mapnik | buffer | buffer | 3.48 | 3.6 | | gm | buffer | buffer | 8.47 | 10.3 |
| gm | buffer | buffer | 8.53 | 8.9 | | gm | file | file | 8.58 | 10.5 |
| gm | file | file | 8.60 | 9.0 | | imagemagick | file | file | 9.23 | 11.3 |
| imagemagick | file | file | 9.30 | 9.7 | | sharp | stream | stream | 33.23 | 40.5 |
| sharp | stream | stream | 32.86 | 34.2 | | sharp | file | file | 35.22 | 43.0 |
| sharp | file | file | 34.82 | 36.3 | | sharp | buffer | buffer | 35.70 | 43.5 |
| sharp | buffer | buffer | 35.41 | 36.9 |
Greater libvips performance can be expected with caching enabled (default) ### ARM64
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. * 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 ## Running the benchmark test