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Update performance test results

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Lovell Fuller 2014-04-15 22:57:27 +01:00
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@ -204,69 +204,42 @@ Running the tests requires both ImageMagick and GraphicsMagick plus one of eithe
brew install imagemagick brew install imagemagick
brew install graphicsmagick brew install graphicsmagick
sudo apt-get install imagemagick graphicsmagick libmagick++-dev sudo apt-get install imagemagick graphicsmagick libmagick++-dev
## Performance ## Performance
Test environment: ### Test environment
* AMD Athlon 4 core 3.3GHz 512KB L2 CPU 1333 DDR3 * Intel Xeon [L5520](http://ark.intel.com/products/40201/Intel-Xeon-Processor-L5520-8M-Cache-2_26-GHz-5_86-GTs-Intel-QPI) 2.27GHz 8MB cache
* libvips 7.38 * Ubuntu 13.10
* libjpeg-turbo8 1.3.0 * libvips 7.38.5
* libpng 1.6.6
* zlib1g 1.2.7
* libwebp 0.3.0
* libtiff 4.0.2
`-file-buffer` indicates read from file and write to buffer, `-buffer-file` indicates read from buffer and write to file etc. ### The contenders
`-sharpen`, `-progressive` etc. demonstrate the negative effect of options on performance. * [imagemagick-native](https://github.com/mash/node-imagemagick-native) - Supports Buffers only and blocks main V8 thread whilst processing.
* [imagemagick](https://github.com/rsms/node-imagemagick) - Supports filesystem only and "has been unmaintained for a long time".
* [gm](https://github.com/aheckmann/gm) - Fully featured wrapper around GraphicsMagick.
* sharp - Caching within libvips disabled to ensure a fair comparison.
### JPEG ### Results
* imagemagick x 5.53 ops/sec ±0.62% (31 runs sampled) | Module | Input | Output | Ops/sec | Speed-up |
* gm-file-file x 4.10 ops/sec ±0.41% (25 runs sampled) | :-------------------- | :----- | :----- | ------: | -------: |
* gm-file-buffer x 4.10 ops/sec ±0.36% (25 runs sampled) | imagemagick-native | buffer | buffer | 0.97 | 1 |
| imagemagick | file | file | 2.49 | 2.6 |
| gm | buffer | file | 3.72 | 3.8 |
| gm | buffer | buffer | 3.80 | 3.9 |
| gm | file | file | 3.67 | 3.8 |
| gm | file | buffer | 3.67 | 3.8 |
| sharp | buffer | file | 13.62 | 14.0 |
| sharp | buffer | buffer | 12.43 | 12.8 |
| sharp | file | file | 13.02 | 13.4 |
| sharp | file | buffer | 11.15 | 11.5 |
| sharp +sharpen | file | buffer | 10.26 | 10.6 |
| sharp +progressive | file | buffer | 9.44 | 9.7 |
| sharp +sequentialRead | file | buffer | 11.94 | 12.3 |
* sharp-buffer-file x 20.76 ops/sec ±0.55% (54 runs sampled) You can expect much greater performance with caching enabled (default) and using 16+ core machines.
* sharp-buffer-buffer x 20.90 ops/sec ±0.26% (54 runs sampled)
* sharp-file-file x 91.78 ops/sec ±0.38% (88 runs sampled)
* sharp-file-buffer x __93.05 ops/sec__ ±0.61% (76 runs sampled)
* sharp-file-buffer-sharpen x 63.09 ops/sec ±5.58% (63 runs sampled)
* sharp-file-buffer-progressive x 61.68 ops/sec ±0.53% (76 runs sampled)
* sharp-file-buffer-sequentialRead x 60.66 ops/sec ±0.38% (75 runs sampled)
### PNG
* imagemagick x 4.27 ops/sec ±0.21% (25 runs sampled)
* gm-file-file x 8.33 ops/sec ±0.19% (44 runs sampled)
* gm-file-buffer x 7.45 ops/sec ±0.16% (40 runs sampled)
* sharp-buffer-file x 4.94 ops/sec ±118.46% (26 runs sampled)
* sharp-buffer-buffer x 12.59 ops/sec ±0.55% (64 runs sampled)
* sharp-file-file x 44.06 ops/sec ±6.86% (75 runs sampled)
* sharp-file-buffer x __46.29 ops/sec__ ±0.38% (76 runs sampled)
* sharp-file-buffer-sharpen x 38.86 ops/sec ±0.22% (65 runs sampled)
* sharp-file-buffer-progressive x 46.35 ops/sec ±0.20% (76 runs sampled)
* sharp-file-buffer-sequentialRead x 29.02 ops/sec ±0.62% (72 runs sampled)
### WebP
* sharp-buffer-file x 3.30 ops/sec ±117.14% (19 runs sampled)
* sharp-buffer-buffer x 7.66 ops/sec ±5.83% (43 runs sampled)
* sharp-file-file x 9.88 ops/sec ±0.98% (52 runs sampled)
* sharp-file-buffer x 9.95 ops/sec ±0.25% (52 runs sampled)
* sharp-file-buffer-sharpen x 9.05 ops/sec ±0.36% (48 runs sampled)
* sharp-file-buffer-sequentialRead x 9.87 ops/sec ±0.98% (52 runs sampled)
### TIFF
* sharp-file-file x 68.24 ops/sec ±5.93% (85 runs sampled)
* sharp-file-file-sharpen x 50.76 ops/sec ±0.52% (82 runs sampled)
* sharp-file-file-sequentialRead x 36.37 ops/sec ±0.90% (87 runs sampled)
## Licence ## Licence