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Re: BUG #8470: 9.3 locking/subtransaction performance regression - Mailing list pgsql-bugs

From Alvaro Herrera
Subject Re: BUG #8470: 9.3 locking/subtransaction performance regression
Date
Msg-id 20131004223141.GZ5235@eldon.alvh.no-ip.org
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In response to Re: BUG #8470: 9.3 locking/subtransaction performance regression  (Alvaro Herrera <alvherre@2ndquadrant.com>)
Responses Re: BUG #8470: 9.3 locking/subtransaction performance regression  (Oskari Saarenmaa <os@ohmu.fi>)
Re: BUG #8470: 9.3 locking/subtransaction performance regression  (Alvaro Herrera <alvherre@2ndquadrant.com>)
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AFAICS the problem here is that this test doesn't use MultiXactIds at
all in 9.2, but it does in 9.3.  I vaguely recall Noah tried to convince
me to put in an optimization which would have avoided this issue; I will
give that a thought.  I don't think I will be able to get it done for
9.3.1 though.

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Álvaro Herrera                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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