Subject: Re: [PATCH] audo-detect and use -moutline-atomics compilation flag
 for
 aarch64
Thread-Topic: [PATCH] audo-detect and use -moutline-atomics compilation flag
 for aarch64
From: "Pop, Sebastian" <spop@amazon.com>
To: Christoph Berg <myon@debian.org>
CC: PostgreSQL in Debian <pgsql-pkg-debian@postgresql.org>, "Saidi, Ali"
	<alisaidi@amazon.com>, "Csoma, Csaba" <csabac@amazon.com>
Thread-Index: AQHX1xz/aMnwG7BEBkCMiUUHc3Ygaav+jI+U
Date: Thu, 11 Nov 2021 17:11:02 +0000
Message-ID: <1636650661046.35954@amazon.com>
References: <1636497120606.54267@amazon.com>
 <1635266397152.45198@amazon.com>,<YY1LHr9YYQb0Ds8h@msg.df7cb.de>
In-Reply-To: <YY1LHr9YYQb0Ds8h@msg.df7cb.de>
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> The benchmarks in=0A=
> https://www.postgresql.org/message-id/1C8D0E58-FB33-4105-AC00-8FA07621F5D=
D%40amazon.com=0A=
> don't look like the option is a game-changer.=0A=
=0A=
Since then we have seen benchmarks that are several orders of magnitude fas=
ter with LSE instructions.=0A=
I will get the new data and share.=0A=
=0A=
> Even if we are convinced, we don't have the infrastructure in the=0A=
> package yet to do architecture- and distribution-specific=0A=
> optimizations. Would you (Amazon?) be willing to sponsor the required=0A=
> package engineering?=0A=
=0A=
Yes, I am willing to do whatever is necessary to enable the flag on Postgre=
SQL builds for Ubuntu 20.04.=0A=
Please point me to the (git?) repo and the files that need to be changed.=
=0A=
=0A=
Thanks,=0A=
Sebastian=