Re: Open issues for HOT patch - Mailing list pgsql-hackers

From Decibel!
Subject Re: Open issues for HOT patch
Date
Msg-id 3A083CE1-C08B-473C-9A31-67E991D02CCA@decibel.org
Whole thread Raw
In response to Re: Open issues for HOT patch  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
On Sep 19, 2007, at 8:08 AM, Tom Lane wrote:
> Decibel! <decibel@decibel.org> writes:
>> 3 isn't that important to me, but 4 is:
>> 4. Doesn't hammer the database to measure
>
>> And pgstattuple fails #4 miserably. Want to know the average dead  
>> space
>> in a 500GB database? Yeah, right....
>
> So we could put a vacuum_cost_delay() in it ...

pg_stat_delay()? ;)

That's better than what we have now, without a doubt. But I'd still  
prefer to have a table I can just read on the fly.

We do have a TODO to replace the current stats infrastructure with  
something that has less overhead, right? :)
-- 
Decibel!, aka Jim C. Nasby, Database Architect  decibel@decibel.org
Give your computer some brain candy! www.distributed.net Team #1828




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