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