Hi, On 2025-08-15 15:31:47 -0400, Peter Geoghegan wrote: > On Fri, Aug 15, 2025 at 3:28 PM Andres Freund <and...@anarazel.de> wrote: > > >I'm not worried about it. Andres' "not waiting for already-in-progress > > >IO" patch was clearly just a prototype. Just thought it was worth > > >noting here. > > > > Are you confident in that? Because the patch should be extremely cheap in > > that case. > > I'm pretty confident. > > > What precisely were you testing? > > I'm just running my usual generic pgbench SELECT script, with my usual > settings (so no direct I/O, but with iouring).
I see absolutely no effect of the patch with shared_buffers=1GB and a read-only scale 200 pgbench at 40 clients. What data sizes, shared buffers etc. were you testing? Greetings, Andres Freund
