好用的tool

1.performance

[stressapptest]

内存压力测试之stressapptest

2.linux disk encryption

https://blog.cloudflare.com/speeding-up-linux-disk-encryption/

 

3.dmsetup

1. dmsetup报错: device-mapper: table: 254:1: default-key: unknown target type

>>这是因为defaul-key driver没有支持，需要打开CONFIG_DEFAULT_KEY=y

 

3.umount target too busy

https://linuxhint.com/umount-target-busy/