实际的情况是这样的actorsunpc22:~/android_ws/app_framework$ adb shell free -h total used free shared buffers Mem: 7.2G 7.0G 216M 50M 2.5M -/ buffers/cache: 7.0G 218M Swap: 8.0G 3.1G 4.8G actorsunpc22:~/android_ws/app_framework$看上去还有11G内存可以用但是实际上高速内存只剩下200MB