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Home -> Community -> Usenet -> c.d.o.server -> Re: Formula for Calculating Maximum Number of Possible Sessions
On 11 Jan 2006 09:19:12 -0800, "JPinTampa" <JPinTampa_at_hotmail.com>
wrote:
>I am looking for a Formula for Determining the Maximum Number of
>Possible Sessions (Dedicated connections) is possible for an Oracle9i
>Database Server.
>
>Looking through the Init Parameters I've determined the Following:
>
>SESSIONS derived: (1.1 * PROCESSES) + 5
>PROCESSES derived from PARALLEL_MAX_SERVERS
>PARALLEL_MAX_SERVERS derived from the values of CPU_COUNT,
>PARALLEL_AUTOMATIC_TUNING, and PARALLEL_ADAPTIVE_MULTI_USER
>
>So if I want n number of SESSIONS how much memory/cpu do I need?
Processes doesn't derive from anything. It is a limit you set in
init.ora.
Also there is no formula, as you can't predict how much pga and uga
every session is going to use.
-- Sybrand Bakker, Senior Oracle DBAReceived on Wed Jan 11 2006 - 15:07:14 CST
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