>>>>> "Tom" == Tom Lane <tgl@sss.pgh.pa.us> writes:
Tom> Sailesh Krishnamurthy <sailesh@cs.berkeley.edu> writes: >> Why not have the traditional approach of a lock
tablein shared >> memory, growing and shrinking as appropriate,
Tom> Because we can't grow shared memory. Whatever size we get at Tom> startup is what we're stuck with. (I
supposewe could try Tom> asking the kernel for additional segments, but there's every Tom> likelihood that that
willfail.)
We implemented a Shared Memory MemoryContext using OSSP libmm (used in
Apache) for TelegraphCQ.
If you think it's useful I can submit it as a patch.
--
Pip-pip
Sailesh
http://www.cs.berkeley.edu/~sailesh
