On Thu, 7 Jul 2005, Tom Lane wrote:
We still don't know enough about the situation to know what a solution might look like. Is the slowdown Josh is seeing due to the extra CPU cost of the CRCs, or the extra I/O cost, or excessive locking of the WAL-related data structures while we do this stuff, or ???. Need more data.
I wonder if a different BLCKSZ would make a difference either way. Say, 1024 bytes instead of the default 8192.
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