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Re: Page replacement algorithm in buffer cache - Mailing list pgsql-hackers

From Greg Stark
Subject Re: Page replacement algorithm in buffer cache
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Msg-id CAM-w4HNxFckMid3DEq8tOM3vsFdPY+EzV0NTkbmwCWOqp8yAeA@mail.gmail.com
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In response to Re: Page replacement algorithm in buffer cache  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: Page replacement algorithm in buffer cache
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I'm confused by this thread. We *used* to maintain an LRU. The whole
reason for the clock-sweep algorithm is precisely to avoid maintaining
a linked list of least recently used buffers since the head of that
list is a point of contention.

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