| From: | Alexander Korotkov <aekorotkov(at)gmail(dot)com> |
|---|---|
| To: | Amit Khandekar <amitdkhan(dot)pg(at)gmail(dot)com> |
| Cc: | Krunal Bauskar <krunalbauskar(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, tsahee(at)amazon(dot)com |
| Subject: | Re: Improving spin-lock implementation on ARM. |
| Date: | 2020-12-01 14:58:28 |
| Message-ID: | CAPpHfdv--HNOQ3aC1YGHRMfKGf37tHs8aD1u6qgZUuEiqhAhUg@mail.gmail.com |
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On Tue, Dec 1, 2020 at 1:10 PM Amit Khandekar <amitdkhan(dot)pg(at)gmail(dot)com> wrote:
> On Tue, 1 Dec 2020 at 15:33, Krunal Bauskar <krunalbauskar(at)gmail(dot)com> wrote:
> > What I meant was outline-atomics support was added in GCC-9.4 and was made default in gcc-10.
> > LSE support is present for quite some time.
>
> FWIW, here is an earlier discussion on the same (also added the
> proposal author here) :
>
> https://www.postgresql.org/message-id/flat/099F69EE-51D3-4214-934A-1F28C0A1A7A7%40amazon.com
Thank you for pointing! I wonder why the effect of LSE on Graviton2
observed by Tsahi Zidenberg is so modest. It's probably because he
runs the tests with a low number of clients.
------
Regards,
Alexander Korotkov
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