| From: | Peter Geoghegan <pg(at)bowt(dot)ie> |
|---|---|
| To: | Fujii Masao <masao(dot)fujii(at)oss(dot)nttdata(dot)com> |
| Cc: | Julien Rouhaud <rjuju123(at)gmail(dot)com>, "Tharakan, Robins" <tharar(at)amazon(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: track_planning causing performance regression |
| Date: | 2020-06-30 22:37:05 |
| Message-ID: | CAH2-WzmYXtaeCtTEmU_37Eiu5AuRM3etinKFKo=posnLtcxe3g@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Jun 30, 2020 at 6:40 AM Fujii Masao <masao(dot)fujii(at)oss(dot)nttdata(dot)com> wrote:
> Ants and Andres suggested to replace the spinlock used in pgss_store() with
> LWLock. I agreed with them and posted the POC patch doing that. But I think
> the patch is an item for v14. The patch may address the reported performance
> issue, but may cause other performance issues in other workloads. We would
> need to measure how the patch affects the performance in various workloads.
> It seems too late to do that at this stage of v13. Thought?
I agree that it's too late for v13.
Thanks
--
Peter Geoghegan
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