Re: ZFS Re: A specific example of a disk i/o problem

2009-10-06 Thread O. Hartmann
Thomas Backman wrote: On Oct 5, 2009, at 6:05 PM, Dieter wrote: In message , Thomas Backman writes: I run 8.0-RC1/amd64 with ZFS on an A64 3200+ with 2GB RAM and an old 80GB 7200rpm disk. My problem is that I get completely unacceptable latency on console IO (both via SSH and serial console

Re: tuning FFS for large files Re: A specific example of a disk i/o problem

2009-10-06 Thread Bruce Evans
On Mon, 5 Oct 2009, Dieter wrote: I found a clue! The problem occurs with my big data partitions, which are newfs-ed with options intended to improve things. Reading a large file from the normal ad4s5b partition only delays other commands slightly, as expected. Reading a large file from the t

Re: ZFS Re: A specific example of a disk i/o problem

2009-10-06 Thread Thomas Backman
On Oct 6, 2009, at 10:57 AM, O. Hartmann wrote: Thomas Backman wrote: On Oct 5, 2009, at 6:05 PM, Dieter wrote: In message , Thomas Backman writes: I run 8.0-RC1/amd64 with ZFS on an A64 3200+ with 2GB RAM and an old 80GB 7200rpm disk. My problem is that I get completely unacceptable la