add performance tests

README.md

@@ -1,5 +1,4 @@
-Pillow-SIMD
-===========
+# Pillow-SIMD
 
 Pillow-SIMD is "following" Pillow fork (which is PIL fork itself).
 
@@ -9,8 +8,42 @@ For more information about original Pillow, please
 [find out how to contribute](https://github.com/python-pillow/Pillow/blob/master/.github/CONTRIBUTING.md).
 
 
-Contributing to Pillow-SIMD
----------------------------
+## Aims
+
+
+## Status
+
+
+## Performance
+
+Hardware: Intel Core i5 4258U with AVX2.
+
+Software: Ubuntu 14.04 64-bit.
+
+- ImageMagick 6.9.3-8 Q8 x86_64
+- Pillow 3.2.0
+- Pillow-SIMD 3.2.0.post1
+
+Source    | Operation                   | IM   | Pillow | SIMD SSE4 | SIMD AVX2 
+----------|-----------------------------|------|--------|-----------|-----------
+7712x4352 | Bilinear resize to 16x16    | 27.0 | 217    | 456       | 545
+          | Bilinear resize to 320x180  | 32.0 | 166    | 354       | 410
+          | Bilinear resize to 2048x1155| 20.7 | 87.6   | 202       | 217
+
+          | Bicubic resize to 16x16     | 10.9 | 115    | 240       | 278
+          | Bicubic resize to 320x180   | 16.5 | 92.3   | 198       | 204
+          | Bicubic resize to 2048x1155 | 12.2 | 65.7   | 126       | 130
+
+          | Lanczos resize to 16x16     | 6.6  | 76.1   | 162       | 194
+          | Lanczos resize to 320x180   | 11.0 | 63.2   | 133       | 147
+          | Lanczos resize to 2048x1155 | 8.7  | 41.3   | 88.2      | 95.6
+
+          | Blur 1px                    | 8.1  | 17.1   | 37.8
+          | Blur 10px                   | 2.6  | 17.4   | 39.0
+          | Blur 100px                  | 0.3  | 17.2   | 39.0
+
+
+## Contributing to Pillow-SIMD
 
 **Important.** Pillow-SIMD and Pillow are two separate projects.
 Please submit bugs and improvements not related to SIMD to