Flickr 用 GPU 產生縮圖

Flickr 說明了用 GPU 產生縮圖的技術:「Real-time Resizing of Flickr Images Using GPUs」。

這邊可以看到是透過 apache module 再轉到 resize worker:

成果就是讓縮圖的產生時間縮短很多,以 2048px 轉到 1600px 為例,速度快了 15 倍,即使是與 Yahoo 自己最佳化過的版本相比,也快了 10 倍:

而 GPU-based 的架構每台 server 可以支撐 300 resizes/sec:

Equally noteworthy, at peak load, each resize server can perform over 300 resizes per second.

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