系统空间清理

生成大量文件

mkdir lostfiles
cd lostfiles

cat create_files.sh

for i in $(seq 1 1500000)
do
  echo test >>$i.txt
done

time sh create_files.sh

real    3m44.841s
user    0m13.208s
sys 3m14.523s
````
## 快速删除方式对比

time rsync --delete-before -d /tmp/null/ lostfiles/

real 1m14.937s user 0m1.769s sys 0m54.957s

time rm lostfiles/ -rf

real 1m4.221s user 0m0.776s sys 0m40.334s

time find ./lostfiles/ -type f -delete

real 1m0.695s user 0m0.851s sys 0m41.294s

time perl -e 'for(<*>){((stat)[9]<(unlink))}'

real 1m9.959s user 0m2.955s sys 0m50.202s

## 应用

- 快速清除minio bucket 数据 

清除bucket数据 time find ./bucket001/ -type f -delete

清除bucket元数据 time find .minio.sys/buckets/bucket001 -type f -delete ```