help: df slow

[Rick Stevens]

Cameron Simpson wrote:
> On 06Nov2008 08:43, Patrick O'Callaghan <pocallaghan at gmail.com> wrote:
> | On Thu, 2008-11-06 at 20:48 +0800, adrian kok wrote:
> | > I have more than 10 nfs mount folder in the machine
> | > When I type df. it sometimes is slow and sometimes is
> | > fine
> | > Can I know what is the problem?
> | 
> | I think you answered your own question: it's slow because you have 10
> | NFS mounts, thus 10 interactions with network-connected servers when you
> | do a df.
> 
> Also, if one or more is down it can be VERY slow.

df on NFS volumes can be very slow--depending on the network activity
level and the NFS servers' activities.

If you're curious about the local drives only, you can use "df -x nfs"
to exclude NFS filesystems from the df report.
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