The extent size of the temp tablespace should be a
multiple of the sort_area_size parameter + 1 block.
If your sort_area_size is 128K and if you need to go
to temp tablespace that means that 128K is not enough
so you should allocate for more than 128K.
temp extent = (sort_area_size*n)+ 1 block
where n goes from 2 to usually 4,5
depending on your situation
- Adrian Roe <adrian.roe_at_telewest.co.uk> a écrit : >
Hi List,
>
> Quick question regarding temp tablespace extent
> sizing.
>
> I have always assumed that the extent size for a
> temporary tablespace needs
> to be equal to the size that sort_area_size is set
> to. A sort that can't fit
> into memory then goes and grabs temp tablespace
> extents of a size equal to
> sort_area_size. However, I have read somewhere that
> the extent size should
> be equal to sort_area_size + block size (the block
> being used for header
> infomation or something like that) eg. 8k block size
> and 64k sort area size
> results in 72K temp tablespace extent size.
>
> So, assume I have a sort area size of 128K and block
> size of 8k, do I need
> to set temp tablespace extent sizes to 128K or 136K,
> or doesn't it really
> matter.
>
> Thanks,
>
> Ade
>
>
>
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Received on Tue Apr 24 2001 - 11:43:07 CDT
