astc软解性能测试 - axmol引擎项目

windows平台

• 硬件信息:
  • CPU: Intel® Core™ i7-9700 CPU @ 3.00GHz 3.00 GHz 8核8线程
  • RAM: 32.0GB
• 编译器: VS2019: 16.10.2/msvc-14.29.30037
• 测试图片大小: 1024x1024

Debug单线程

cocos2d: Hardware ASTC decoder not present. Using software decoder
decompress astc image cost: 930.954(ms)
cocos2d: Hardware ASTC decoder not present. Using software decoder
decompress astc image cost: 926.988(ms)
cocos2d: Hardware ASTC decoder not present. Using software decoder
decompress astc image cost: 812.091(ms)

Debug 8线程并行解码

cocos2d: Hardware ASTC decoder not present. Using software decoder
decompress astc image cost: 138.524(ms)
cocos2d: Hardware ASTC decoder not present. Using software decoder
decompress astc image cost: 143.967(ms)
cocos2d: Hardware ASTC decoder not present. Using software decoder
decompress astc image cost: 132.371(ms)

Release单线程

decompress astc image cost: 33.924(ms)
decompress astc image cost: 34.163(ms)
decompress astc image cost: 30.890(ms)

Release 8线程并行解码

decompress astc image cost: 9.429(ms)
decompress astc image cost: 6.907(ms)
decompress astc image cost: 6.930(ms)

Release 8线程并行解码和png解码对比

并不说明astc快，毕竟解码astc用到了8线程，而解码png只用单线程

decompress png image (1024x1024) cost: 10.486(ms)
decompress png image (1024x1024) cost: 11.933(ms)
decompress png image (1024x1024) cost: 13.817(ms)
decompress astc image (1024x1024) cost: 11.307(ms)
decompress astc image (1024x1024) cost: 6.693(ms)
decompress astc image (1024x1024) cost: 6.566(ms)

根据测试结果，可以看出并行解码是单线程解码的3倍以上，Debug版本 6倍以上

测试代码请访问

https://github.com/axmolengine/axmol/blob/dev/cocos/base/astc.cpp