[Info-ingres] Very slow help table response
Roy Hann
specially at processed.almost.meat
Thu Jul 27 10:38:44 UTC 2017
Martin Bowes wrote:
> Hi All,
>
> Ingres Vector. VW 5.0.0 (a64.lnx/402) + p40205
>
> We have a database in which a help table takes some 23 seconds to
> respond...which is a little embarrassing for an otherwise lickety-split
> slicker than snot type installation.
>
> I've used II_EMBED_SET printqry to find where its slow and have found (FWIW):
> Query text:
> execute query (qrtabhlp5) 'val_real' 'ace'
> Query Send Time: 27-Jul-2017 09:43:46.39
> Query Response Time: 27-Jul-2017 09:44:07.68
> Response CPU Time: 93
> Qry End CPU Time: 93
>
> I've run a sysmod over the database and the slow response persists.
>
> Anyone got any ideas?
If you set trace point qs506 to invalidate the cached query plans then
run it again, do you get to see the actual query?
Roy
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