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Buffer miss ratio

From: 崔岩ccuiyyan(at)sina(dot)com <ccuiyyan(at)gmail(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Buffer miss ratio
Date: 2009-01-01 09:00:45
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Lists: pgsql-hackers
Dear all:

     A quick question about shared buffers in PostgreSQL:

     I want to get the number of misses for the buffer pool of PostgreSQL.
Is there any methods or

     performance tools I can use to get the information?

Best Wishes



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