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Re: index rebuilding...

From: Noons <nsouto_at_optusnet.com.au.nospam>
Date: 06 Feb 2003 13:02:57 GMT
Message-ID: <Xns931AF238EF77Dmineminemine@210.49.20.254>


"Richard Foote" <richard.foote_at_bigpond.com> wrote in news:Qd70a.41251$jM5.103641_at_newsfeeds.bigpond.com and I quote:

> freelisted segment. By effectively making the block accessed for inserts
> "random" (providing there is sufficient space), you reduce this problem.
> Note that multiple freelists kinda have this effect as well (that is
> increased numbers of empty blocks below the HWM)

Cool, I can live with this. Like it a lot, in fact.

> The price you pay is the "nth" block being selected rather than the "next"
> block.

Cheap.

>
> BTW, I have actually found ASSM tables to have as good (and in some cases )
> better performance with regard to FTS than with non ASSM tablespaces. These
> are well populated tables, each with something like 500-600 64K extents.
>

Is ASSM the default now with 9r2? I thought it wasn't, but I may well be wrong.

-- 
Cheers
Nuno Souto
nsouto_at_optusnet.com.au.nospam
Received on Thu Feb 06 2003 - 07:02:57 CST

Original text of this message

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