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
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