Do a web search on setting shared memory the hard way, and I think you'll see what you really need to do.
--
Jay
Sent from my iPad
> On Nov 10, 2016, at 5:57 PM, leoaaryan <leoaaryan@gmail.com> wrote:
>
> I am a newbie to databases and Postgres and I am trying to analyze the shared
> memory being calculated and allocated by Postgres in the method
> "CreateSharedMemoryAndSemaphores" for different major versions for different
> postgres.conf file
>
> My idea was to create a utility in Postgres and calll out the methods like
> BufferShmemSize(), LockShmemSize() etc being used in the
> CreateSharedMemoryAndSemaphores() to find the value.
>
> Till now what I have done: I have created a new utility and am trying to
> link the src/backend code to it but I'm not able to get it working
> correctly.
>
> Is there any other interest idea / way where I use a postgres.conf file to
> calculate the above mentioned shared memory value ?
>
> I have found this discussion thread from the past but haven't made much
> sense to me in terms of where to look.
> Old discussion thread:
> http://postgresql.nabble.com/postgresql-conf-basic-analysis-tool-td1948070.html
>
>
>
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