Re: Cheap way to track disk usage?
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On 03/03/15 21:09, Johann Spies wrote:
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> I can run du, but that takes ages, and has a performance impact.
> df only gives the total for the filesystem, of course.
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> Try ncdu. It also takes some time to finish calculating, but the
> output is easier to handle and you can drill down to lower
> directories without losing the other data.
Thanks Johann,
That looks a really nice tool, and for generally finding out where
space is used, is great - better than the sequential du that I use for
that at the moment.
In this case, however, we know there's lots of space used, and it's
supposed to be - what we don't know is where in the tree that usage is
changing. That requires running du multiple times, and if done too
often that will have a significant performance impact on the system.
ncdu will be no different in that respect, except that it's less
suitable for capturing the output for later analysis and comparison.
For that, I'm currently using find to generate csv files that I can
compare with whatever tools - but I can only do that at relatively
large intervals, so I don't get a very detailed picture.
Richard
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