On 28 November 2016 at 18:46, Jakub Hrozek <[email protected]> wrote:

> On Mon, Nov 28, 2016 at 02:45:59PM +1100, Lachlan Musicman wrote:
> > I'm on Centos 7.2 and thought I'd try this to see how it works. Instead
> of
> > nice output I got and error. Have I done something wrong?
> >
> > [root@linux systemtap]# stap id_perf.stp
> > ERROR: empty aggregate near identifier 'print' at id_perf.stp:68:5
>
> Ah, sorry, this is a silly bug in the script. In your case, id returned
> data from the cache (as you can see the time id ran was only 3ms) so
> there were no writable transactions done and the script ended up
> dereferencing an empty aggregate that normally saves the transaction
> times.
>
> I've opened a PR on github to fix the script, but runnning sss_cache
> before you run the script next time should give 'better' results.
>


Yes, that worked - thanks.

cheers
L.


------
The most dangerous phrase in the language is, "We've always done it this
way."

- Grace Hopper
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