Re: [PATCH 0/7] nfsstat: adding -D/--diff-stat to nfsstat

[Peter Staubach <staubach@redhat.com>]

david m. richter wrote:
>> david m. richter wrote:
>>     
>>> 	Hello, Neil,
>>>
>>> 	This set of patches adds -D/--diff-stat to nfsstat.  When this flag is
>>> used, instead of printing out the current total statistics and exiting,
>>> nfsstat takes a snapshot of the current statistics and pauses until the user
>>> types ^C, at which point a second snapshot is taken and only the difference
>>> between the two is printed; i.e., only the statistics gathered during the
>>> pause.
>>>       
>> Hi.
>>
>> Perhaps I am missing something, but is something that we really need
>> to complicate the nfsstat support with?  Is this not easy enough to
>> do with already existing tools or some easily written support in sh
>> or perl or awk or name your favorite administrative scripting language?
>>
>>    Thanx...
>>
>>       ps
>>     
>
> 	
> 	hello, peter,
>
> 	yes.  :)  right now, there's no easy way to run a test and get 
> stats for just that test, since the counters persist -- so you have to do 
> things like run a test, unmount, remount, etc.  this is a quick way to get 
> stats collected over an arbitrary period.  and it's not very complicated, 
> really.
>
> 	i don't think a shell/perl/python/etc script would be anywhere as 
> useful a substitute.  and with neil's suggestion about adding an optional 
> timeout to make it easier to use -in- scripts, i think we're on the right 
> track with this approach.
>
> 	.. thoughts/ideas?

It doesn't seem very complicated to me to store the output from two
nfsstat commands and then write a small script or whatever to parse
them and create output with the differences.

This would address the issues with wanting to be able to measure
the statistics for a particular duration or for the duration that
a particular problem runs.  Either would be easy to do.

Now, if someone was proposing a way to do "nfsstat 5" and make the
output look useful, then I would be behind that 100%.

    Thanx...

       ps

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