On 2013-11-21 09:08:05 -0600, Merlin Moncure wrote:
> This code is in a very hot code path.  Are we *sure* that the read
> barrier is fast enough that we don't want to provide an alternate
> function that only returns the local flag?  I don't know enough about
> them to say either way.

A read barrier is just a compiler barrier on x86.

Greetings,

Andres Freund

-- 
 Andres Freund                     http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services


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