rk3399 android 8.1编译问题总结

rk3399 android 8.1
ubuntu 14.04 64位

1.增swap空间
mkdir swap
cd swap
sudo dd if=/dev/zero of=sfile bs=1024 count=8000000
sudo mkswap sfile
sudo swapon sfile
free -m
sudo swapoff sfile

2.报out of memory时
export JACK_SERVER_VM_ARGUMENTS="-Dfile.encoding=UTF-8 -XX:+TieredCompilation -Xmx4g"
./prebuilts/sdk/tools/jack-admin kill-server
./prebuilts/sdk/tools/jack-admin start-server

3.jack server 
 多次启动编译，没有正常结束引起的