On my drive array (capable of 260MB/second single-process writes and 450MB/second single-process reads) 'zfs iostat' reports a read rate of about 59MB/second and a write rate of about 59MB/second when executing 'cp -r' on a directory containing thousands of 8MB files. This seems very similar to the performance you are seeing.
The system indicators (other than disk I/O) are almost flatlined at zero while the copy is going on. It seems that a multi-threaded 'cp' could be much faster. With GNU xargs, find, and cpio, I think that it is possible to cobble together a much faster copy since GNU xargs supports --max-procs and --max-args arguments to allow executing commands concurrently with different sets of files. Bob ====================================== Bob Friesenhahn [EMAIL PROTECTED], http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
