I understand noatime is a superset of nodiratime, so there's no need to
specify nodiratime as well (though it does no harm).
Lawrie
Tel: 0121 414 4621 Fax: 0121 414 6709 Email: [log in to unmask]
On Tue, 22 Feb 2011, Sam Skipsey wrote:
> Hi Winnie,
>
>
> 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:
>>
>> risze=8192,wsize=8192
>>
>> 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.
>
> Sam
>> Comments? Advice treasured!
>>
>
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