On Fri, Nov 2, 2018 at 11:17 AM Haribabu Kommi <kommi.harib...@gmail.com> wrote:
> On Wed, Oct 31, 2018 at 9:34 PM Dmitry Dolgov <9erthali...@gmail.com> > wrote: > >> FYI, alongside with reviewing the code changes I've ran few performance >> tests >> (that's why I hit this issue with pgbench in the first place). In case of >> high >> concurrecy so far I see small performance degradation in comparison with >> the >> master branch (about 2-5% of average latency, depending on the level of >> concurrency), but can't really say why exactly (perf just shows barely >> noticeable overhead there and there, maybe what I see is actually a >> cumulative >> impact). >> > > Thanks for sharing your observation, I will also analyze and try to find > out performance > bottlenecks that are causing the overhead. > I tried running the pgbench performance tests with minimal clients in my laptop and I didn't find any performance issues, may be issue is visible only with higher clients. Even with perf tool, I am not able to get a clear problem function. As you said, combining of all changes leads to some overhead. Here I attached the cumulative patches with further fixes and basic syntax regress tests also. Regards, Haribabu Kommi Fujitsu Australia
0003-First-draft-of-pluggable-storage-documentation.patch
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0002-New-API-s-are-added.patch
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0001-Further-fixes-and-cleanup.patch
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