Re: WIP patch for hint bit i/o mitigation

On 11/16/12 9:03 AM, Merlin Moncure wrote:
> Atri ran some quick n dirty tests to see if there
> were any regressions.  He benched a large scan followed by vacuum.  So
> far, results are inconclusive so better testing methodologies will
> definitely be greatly appreciated.  One of the challenges with working
> in this part of the code is that it's quite difficult to make changes
> without impacting at least some workloads.

I'm adding something to pgbench-tools to test for some types of vacuum 
regressions that I've seen before.  And the checksum benchmarking I've 
already signed up for overlaps with this one quite a bit.  I'd suggest 
reviewers here focus on code quality, correctness, and targeted 
optimization testing.  I'm working heavily on a larger benchmarking 
framework that both this and checksums will fit into right now.

-- 
Greg Smith   2ndQuadrant US    greg@2ndQuadrant.com   Baltimore, MD
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