Jeff Haferman wrote:
A user has 5 directories, each has tens of thousands of files, the
largest directory has over a million files. The files themselves are
not very large, here is an "ls -lh" on the directories:
[these are all ZFS-based]
[r...@cluster]# ls -lh
total 341M
drwxr-xr-x+ 2 someone cluster 13K Sep 14 19:09 0/
drwxr-xr-x+ 2 someone cluster 50K Sep 14 19:09 1/
drwxr-xr-x+ 2 someone cluster 197K Sep 14 19:09 2/
drwxr-xr-x+ 2 someone cluster 785K Sep 14 19:09 3/
drwxr-xr-x+ 2 someone cluster 3.1M Sep 14 19:09 4/
When I go into directory "0", it takes about a minute for an "ls -1 |
grep wc" to return (it has about 12,000 files). Directory "1" takes
between 5-10 minutes for the same command to return (it has about 50,000
files).
"ls" sorts its output before printing, unless you use the option to turn
this off (-f, IIRC, but check the man-page).
"echo * | wc" is also a way to find out what's in a directory, but you'll
miss "."files, and the shell you're using may have an influence ..
HTH
Michael
--
Michael Schuster http://blogs.sun.com/recursion
Recursion, n.: see 'Recursion'
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