Simon Josefsson <[EMAIL PROTECTED]> wrote: ... > Frequently when I want to run a long-running I/O-bound job (i.e., > rsync of the entire disk to a second disk) on a busy machine (i.e., > mail and web server), the load increases to ~10 from a normal <1. > Using 'nice' doesn't help. I don't know why this is, but I suspect > the kernel scheduler is sub-optimal for disk-bound jobs. > > Would it be useful to consider extending nice so it can send SIGSTOP > and SIGCONT signals in configurable intervals? Having rsync run for > 30 seconds, sleep for 15, run for 30 seconds, etc, seem to avoid > slowing down the system to unusable levels.
Hi Simon, Have you already tried using rsync's existing option to limit bandwidth? rsync --bwlimit=500 ... _______________________________________________ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
