OS/161 Reference Manual


bigfile - create a large file in small chunks


/testbin/bigfile filename size
/testbin/bigfile filename size/chunksize


bigfile creates a file of the specified size in chunks of the specified chunk size. The default chunk size is 10, which is excessively small. The largest chunk size supported is 8192. The file size is rounded up to an integral number of chunks. Very small chunk sizes are not fully honored.


bigfile uses the following system calls:

bigfile should run on emufs once the basic system calls are complete, and should run on SFS once the file system assignment is complete. Sufficiently small files should work on SFS even before that point.