Re: Sizing ASM memory
- From: rjamya <rjamya@xxxxxxxxx>
- To: Niall Litchfield <niall.litchfield@xxxxxxxxx>
- Date: Mon, 8 Oct 2012 15:29:56 -0400
Niall,
The formula seems to be
1) If PROCESSES parameter is explicitly set: The MEMORY_TARGET should
be set to no less than:
256M + (PROCESSES*132K) -- (64bit)
or
256M + (PROCESSES*120K) -- (32bit)
2) If PROCESSES parameter is not set: The MEMORY_TARGET should be set
to no less than:
256M + ((available_cpu_cores * 80 + 40) * 132K) -- (64bit)
or
256M + ((available_cpu_cores * 80 + 40) * 120K) -- (32bit)
so if you have 1000 processes set then for 64 bit then your
memory_target becomes (256*1024)+(1000*132) K in size, which is about
384M, for ASM that is a bit of a jump from 256M..
I think it is plus (integer * multipled by 132k) not plus 132k.
oh well, we tried.
Raj
On Mon, Oct 8, 2012 at 3:18 PM, Niall Litchfield
<niall.litchfield@xxxxxxxxx> wrote:
> Hi Raj
>
> I don't find that a great formula since it boils down to 256 (mb) plus
> integer plus 132 (kb). Which for all reasonable CPU cores per server is less
> than 272mb unless there's a missing unit per process. Any time I see two
> different units added together in a 'formula' my hackles rise....
>
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