On Wed, Oct 23, 2013 at 5:15 PM, Gavin Flower
<GavinFlower@archidevsys.co.nz> wrote:
> Anyhow, I was suggesting the faclity be off by default - I see no point in
> enabling where people don't need it, even if the resource RAM, processor,
> whatever, were minimal.
As long as any new field in the Counters struct needs to be protected
by a spinlock, I will be suspicious of the cost. The track_io_timing
stuff is still protected, even when it's turned off. So I'm afraid
that it isn't that simple.
--
Peter Geoghegan