dirconc - concurrent file system test
/testbin/dirconc path [randomseed]
dirconc does random directory operations from many processes concurrently. This is a fairly difficult stress test as it exercises cross-directory rename. Quite a number of real-world systems have failed to handle it or larger/longer builds of it.
It does its work in a subdirectory of path, so you can run it against whatever filesystem you prefer.
If your system survives a dirconc run, be sure to check the integrity of the filesystem as well. It's not uncommon for dirconc to provoke filesystem corruption.
dirconc uses the following system calls:
dirconc should work properly on SFS once the file system assignment is complete. It won't do much of interest on emufs, however.