[pgpool-hackers: 569] Re: Memory contexts

[Muhammad Usama]

On Fri, Jul 4, 2014 at 3:02 PM, Tatsuo Ishii <ishii at postgresql.org> wrote:

> > Hi Usama,
> >
> > Is there any documentation regarding memory contexts?  I saw these in
> > mcxt.c but except ProcessLoopContext, there's no documention about
> > purposes for these memory context usage.
> >
> > MemoryContext TopMemoryContext = NULL;
> > MemoryContext ErrorContext = NULL;
> > MemoryContext ProcessLoopContext = NULL; /* This context resets at every
> main loop iteration of a process */
> > MemoryContext CacheMemoryContext = NULL;
> > MemoryContext MessageContext = NULL;
> > MemoryContext QueryContext = NULL;
> > MemoryContext CurTransactionContext = NULL;
> >
> > I would like to manage memory used in pool_config.l.
>
> It seems other than TopMemoryContext, ErrorContext, and
> ProcessLoopContext, other memory contexts aren't used anywhere.  I'm
> going to remove unused memory contexts if there's no objection.
>
> Along with the ones you mentioned QueryContext is another context used in
pgpool-II,
And it is safe to remove rest of the unused contexts.


Best regards,
> --
> Tatsuo Ishii
> SRA OSS, Inc. Japan
> English: http://www.sraoss.co.jp/index_en.php
> Japanese:http://www.sraoss.co.jp
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--usma
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