On Wed, Mar 04, 2020 at 05:02:25PM +0100, Julien Rouhaud wrote: > I'm quite worried about the stability of those counters for regression tests. > Wouldn't a checkpoint happening during the test change them?
Yep. One way to go through that would be to test if this output is non-zero still I suspect at quick glance that this won't be entirely reliable either. > While at it, did you consider adding a full-page image counter in the > WalUsage? > That's something I'd really like to have and it doesn't seem hard to > integrate. FWIW, one reason here is that we had recently some benchmark work done internally where this would have been helpful in studying some spiky WAL load patterns. -- Michael
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