On Mon, Jan 18, 2016 at 11:24 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>> Here is a patch that helps a good deal. I changed things so that when
>> we create a context, we always allocate at least 1kB.
>
> That's going to kill performance in some other cases; subtransactions
> in particular rely on the subtransaction's TransactionContext not causing
> any actual malloc unless something gets put into the TransactionContext.
Sorry, I guess I wasn't clear: it increases the allocation for the
context node itself to 1kB and uses the extra space to store a few
allocations.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
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