On Thu, Nov 21, 2013 at 9:09 AM, Andres Freund <and...@2ndquadrant.com> wrote:
> 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.

That's good enough for me then.

merlin


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