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Re: [PLUG] File System Directory Limits
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Sometimes, the best way to see how many teeth a horse has is to count
them. Below is an experiment from my laptop - 64-bit Ubuntu 9.04 on
jfs (the only file system I trust for my personal use). Watch out for
line wraps.
Regards
-- Bhaskar
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$ rm -rf tmp ; mkdir tmp ; time for (( i=1 ; i<10 ; i++ )) do mkdir
tmp/$i ; done ; ls -l tmp | wc
real 0m0.054s
user 0m0.012s
sys 0m0.024s
10 74 431
$ rm -rf tmp ; mkdir tmp ; time for (( i=1 ; i<100 ; i++ )) do mkdir
tmp/$i ; done ; ls -l tmp | wc
real 0m0.583s
user 0m0.212s
sys 0m0.312s
100 794 4751
$ rm -rf tmp ; mkdir tmp ; time for (( i=1 ; i<1000 ; i++ )) do mkdir
tmp/$i ; done ; ls -l tmp | wc
real 0m5.330s
user 0m1.900s
sys 0m2.476s
1000 7994 48851
$ rm -rf tmp ; mkdir tmp ; time for (( i=1 ; i<10000 ; i++ )) do
mkdir tmp/$i ; done ; ls -l tmp | wc
real 0m40.138s
user 0m13.309s
sys 0m19.301s
10000 79994 498851
$ rm -rf tmp ; mkdir tmp ; time for (( i=1 ; i<100000 ; i++ )) do
mkdir tmp/$i ; done ; ls -l tmp | wc
real 9m4.495s
user 3m15.796s
sys 4m30.721s
100000 799994 5088851
$
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