背景

    音乐播放过程中，进行高CPU操作时，后台音乐播放出现卡滞。

分析

1、日志分析

日志中audioserver出现“AudioFlinger: underrun”的打印

05-27 15:35:00.186   396   777 W AudioFlinger: underrun,  framesReady(0) < framesDesired(289), state: 6
05-27 15:35:07.035   396   777 W AudioFlinger: underrun,  framesReady(0) < framesDesired(915), state: 6
05-27 15:35:07.123   396   777 W AudioFlinger: underrun,  framesReady(0) < framesDesired(8), state: 6
05-27 15:35:07.242   396   777 W AudioFlinger: underrun,  framesReady(0) < framesDesired(859), state: 6
05-27 15:35:31.634   396   777 W AudioFlinger: underrun,  framesReady(0) < frames