Re: How to identify which query is running - reg.

Dear Jan Poslusny,
Thank you for you immediate reply, in
regards to the shared_buffers, what is the optimum value and how do I
calculate it. Thanking you,

Yours sincerely,
Shan.

Jan Poslusny wrote:

> Hi Shan,
> please, check your postgresql.conf and find "shared_buffers" and
> "log_statement". I am not 100% sure, if statements are logged before
> executing.
>
> Regards,
> pajout
>
> Shanmugasundaram Doraisamy wrote:
>
>> Dear Group,
>> We have a java front-end for postgresql 3.4.
>> When we monitor the system usage using top we find couple of
>> postmasters taking up close to 90% of the CPU time in total. I would
>> like to know which are the queries that are currently running at this
>> point of time. How do we do this?? Another thing that I have
>> noticed is that when I give df -h, I find there is a partition
>> /dev/shm which is somewhere in the range of about 128MB and never
>> used. What is this supposed to be. Is it being not used a good sign
>> or am I loosing on my performance? How do we get it to be used by the
>> database if it will help improve the performance. Thanks in advance.
>>
>> Yours sincerely,
>> Shan.
>>
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