> > I wasnt clear in my description, I m referring to ext4 on Linux. In > > fact on a system with low RAM even the dd command makes the system > > horribly unresponsive. > > > > IMHO not having fairshare or timeslicing between different processes > > issuing reads is frankly unacceptable given a lame user can bring > > the system to a halt with 3 large file copies. Are there ZFS > > settings or Project Resource Control settings one can use to limit > > abuse from individual processes? > > I am confused. Are you talking about ZFS under OpenSolaris, or are > you talking about ZFS under Linux via Fuse? > > Do you have compression or deduplication enabled on > the zfs filesystem? > > What sort of system are you using?
I was able to reproduce the problem running current (mercurial) opensolaris bits, with the "dd" command: dd if=/dev/urandom of=largefile.txt bs=1048576k count=8 dedup is off, compression is on. System is a 32-bit laptop with 2GB of memory, single core cpu. The system was unusable / unresponsive for about 5 minutes before I was able to interrupt the dd process. -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
