why does first mkdir takes a longer time on ext3?
Issue
- First mkdir took more than 6 minutes on 16TB ext3 filesystem.
/disk6/RGC_special_data/shunsuke
07/30 04:09:14
real 6m29.810s
user 0m0.003s
sys 0m2.038s
- Second mkdir took less than 1s.
/disk6/RGC_special_data/shunsuke
07/30 04:16:34
real 0m0.521s
user 0m0.000s
sys 0m0.521s
- I reproduced the similar phenomenon on 512GB ext3 filesystem.
- After mounting the filesystem, first mkdir took around 20 seconds.
Environment
- Red Hat Enterprise Linux 6.1 x86_64
- kernel-2.6.32-131.2.1.el6
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