Re: Performance monitor

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От Bruce Momjian
Тема Re: Performance monitor
Дата
Msg-id 200103080317.WAA21007@candle.pha.pa.us
обсуждение исходный текст
Ответ на Re: Performance monitor  (Justin Clift <aa2@bigpond.net.au>)
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Yes, seems that is best.  I will probably hack something up here so I
can do some testing of the app itself.

> Mike Mascari's idea (er... his assembling of the other ideas) still
> sounds like the Best Solution though.
> 
> :-)
> 
> + Justin
> 
> +++
> 
> I like the idea of updating shared memory with the performance
> statistics, 
> current query execution information, etc., providing a function to fetch 
> those statistics, and perhaps providing a system view (i.e.
> pg_performance) 
> based upon such functions which can be queried by the administrator.
> 
> FWIW,
> 
> Mike Mascari
> mascarm@mascari.com
> 
> +++
> 
> Bruce Momjian wrote:
> > 
> > > I think Bruce wants per-backend data, and this approach would seem to only
> > > get the data for the current backend.
> > >
> > > Also, I really don't like the proposal to write files to /tmp. If we want a
> > > perf tool, then we need to have something like 'top', which will
> > > continuously update. With 40 backends, the idea of writing 40 file to /tmp
> > > every second seems a little excessive to me.
> > 
> > My idea was to use 'ps' to gather most of the information, and just use
> > the internal stats when someone clicked on a backend and wanted more
> > information.
> > 
> > --
> >   Bruce Momjian                        |  http://candle.pha.pa.us
> >   pgman@candle.pha.pa.us               |  (610) 853-3000
> >   +  If your life is a hard drive,     |  830 Blythe Avenue
> >   +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026
> 


--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
853-3000+  If your life is a hard drive,     |  830 Blythe Avenue +  Christ can be your backup.        |  Drexel Hill,
Pennsylvania19026
 


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