04-03-2013
Yes, perhaps the find command is the bottleneck. Maybe it has a hard time "dealing with" so many files.
What happens if you run the find command for a minute (forget about the mv part for the time being), saving the output from find to a file, and see how many lines accumulate in the file?
If there are perhaps 120 lines after a minute (two per second), then find is the bottleneck. If there are tens of thousands of lines, then it's still a mystery.
Is there any chance you could just use 'ls' instead of find?
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lndir(1X) lndir(1X)
NAME
lndir - create a shadow directory of symbolic links to another directory tree
SYNOPSIS
lndir fromdir [todir]
DESCRIPTION
lndir makes a shadow copy todir of a directory tree fromdir, except that the shadow is not populated with real files but instead with sym-
bolic links pointing at the real files in the fromdir directory tree. This is usually useful for maintaining source code for different
machine architectures. You create a shadow directory containing links to the real source which you will have usually NFS mounted from a
machine of a different architecture, and then recompile it. The object files will be in the shadow directory, while the source files in
the shadow directory are just symlinks to the real files.
This has the advantage that if you update the source, you need not propagate the change to the other architectures by hand, since all
source in shadow directories are symlinks to the real thing: just cd to the shadow directory and recompile.
The todir argument is optional and defaults to the current directory. The fromdir argument may be relative (e.g., ../src) and is relative
to todir (not the current directory).
Note that RCS, SCCS, and CVS.adm directories are not shadowed.
Note also that if you add files, you must run lndir again. Deleting files is difficult because the symlinks will point to places that no
longer exist.
BUGS
The patch routine needs to be able to change the files. You should never run patch from a shadow directory.
Use a command like the following to clear out all files before you can relink (if the fromdir has been moved, for instance):
find todir -type l -print | xargs rm
The following command will find all files that are not directories:
find . ! -type d -print
lndir(1X)