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如果启动过程中,红色滚动条速度太快(和emulator里的表现比较),runtime或者system_server进程CPU占用率接近100%,那么你可以修改一下你的framebuffer代码中pan_display相关的函数的代码,保证其调用返回时得到足够的帧同步延迟时间。据Google的swetland给我的说法是:This is usually indicative of lack of vsync/pageflip inthe fb driver.The surfaceflinger believes it will be limited by thevsync rate and the startup animation depends on that.