Re: High Memory Usage

since its solaris you could try run prstat -a, this will show you the memory consumed by each OS user

thanks

On Tue, Aug 30, 2011 at 9:40 PM, Stalin <stalinsk_at_gmail.com> wrote:

> We are using UFS, however the FS where the datafiles are housed, are
> mounted with forcedirectIO and in DB we have filesystemio_options set to
> setall.
>
> On Tue, Aug 30, 2011 at 12:26 PM, LS Cheng <exriscer_at_gmail.com> wrote:
>
>> what sort of filesystem are you using?
>>
>> thanks
>>
>> --
>> LSC
>>
>>
>> On Fri, Aug 26, 2011 at 10:02 AM, Stalin <stalinsk_at_gmail.com> wrote:
>>
>>> All,
>>>
>>> I'm trying to figure out high memory usage on one of the DB servers we
>>> have and wondering if pga_aggregate_target could ever exceed from what's
>>> allocated.
>>>
>>> We have sga_target set to 16G and pga_a_t set to 2G, however from
>>> statspack, i see pga usage to be close to 3G. Is that normal. I have posted
>>> relevant sections from statspack for reference. Though i see only 59% of
>>> total memory being used, vmstat reports 29G being used. Any idea what could
>>> be causing it. This node is a dedicated DB server and only one DB runs on
>>> it.
>>>
>>> Memory Statistics Begin End
>>> ~~~~~~~~~~~~~~~~~ ------------ ------------
>>> Host Mem (MB): 32,640.0 32,640.0
>>> SGA use (MB): 16,315.7 16,315.7
>>> PGA use (MB): 2,854.4 2,981.5
>>> % Host Mem used for SGA+PGA: 58.7 59.1
>>> -------------------------------------------------------------
>>> Instance Activity Stats
>>> workarea memory allocated 0 6,043
>>>
>>> Statistic Total per Second
>>> per Trans
>>> --------------------------------- ------------------ --------------
>>> ------------
>>> workarea executions - onepass 0 0.0
>>> 0.0
>>> workarea executions - optimal 7,635 2.1
>>> 0.0
>>>
>>> --
>>> Thanks,
>>>
>>> Stalin
>>>
>>> 11gR2, Solaris 10
>>>
>>
>>
>
>
> --
> Thanks,
>
> Stalin
>

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