On 22 February 2011 10:36, Winnie Lacesso <[log in to unmask]> wrote:
> Dear All,
> In antique stuff inherited from when Ox/Bham built Bristol LCG nodes, this
> is embedded in /etc/fstab for mounting VO software to WN:
> Now modern 2.6 kernel default is 32768. Want to maximize performance, is
> there a reason why 8192 should be preferable to 32768?
Not that I can think of, unless you're expecting very small files...
> Also RAL had advice long ago about using noatime,nodiratime, as I'm building
> new WN now, want to implement & may as well on all existing WN.
> I was going to apply this to all my WN:
> perl -wpi 's/rsize=8192,wsize=8192/noatime,nodiratime/;' /etc/fstab
You *definitely* want noatime, nodiratime.
> Comments? Advice treasured!