>>>>> "Tom" == Tom Lane <[EMAIL PROTECTED]> writes:
Tom> Sailesh Krishnamurthy <[EMAIL PROTECTED]> writes:
>> Why not have the traditional approach of a lock table in 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 suppose we could try
Tom> asking the kernel for additional segments, but there's every
Tom> likelihood that that will fail.)
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
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