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Re: Reducing ClogControlLock contention - Mailing list pgsql-hackers

From Simon Riggs
Subject Re: Reducing ClogControlLock contention
Date
Msg-id CANP8+jJ=zgXn6YSXh4TXo-A0V-7p4dLRMiPnAUS8_CrEipvP8g@mail.gmail.com
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In response to Re: Reducing ClogControlLock contention  (Amit Kapila <amit.kapila16@gmail.com>)
Responses Re: Reducing ClogControlLock contention  (Amit Kapila <amit.kapila16@gmail.com>)
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On 11 August 2015 at 14:53, Amit Kapila <amit.kapila16@gmail.com> wrote:
 
One more point here why do we need CommitLock before calling
SimpleLruReadPage_ReadOnly() in the patch and if it is not required,
then can we use LWLockAcquire(shared->buffer_locks[slotno], LW_EXCLUSIVE);
instead of CommitLock?

That prevents read only access, not just commits, so that isn't a better suggestion.

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Simon Riggs                http://www.2ndQuadrant.com/
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