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help / color / mirror / Atom feedFrom: Nazir Bilal Yavuz <[email protected]>
To: Manni Wood <[email protected]>
Cc: KAZAR Ayoub <[email protected]>
Cc: Mark Wong <[email protected]>
Cc: Nathan Bossart <[email protected]>
Cc: Andrew Dunstan <[email protected]>
Cc: Shinya Kato <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Subject: Re: Speed up COPY FROM text/CSV parsing using SIMD
Date: Fri, 9 Jan 2026 17:21:45 +0300
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Hi,
On Wed, 7 Jan 2026 at 22:13, Manni Wood <[email protected]> wrote:
>
> Now that I am following Nazir's on how to configure my CPU for performance test run, and now that I am following Mark's advice on pinning the postmaster to a particular CPU core, I figured I would share the scripts I have been using to build, run, and test Postges with various patches applied: https://github.com/manniwood/copysimdperf
Thank you for sharing this! I will try to use it soon.
> With Nazir and Mark's tips, I have seen more consistent numbers on my tower PC, as shared in a previous e-mail. But Mark and I saw rather variable results on a different Linux system he has access to. So this has inspired me to spin up an AWS EC2 instance and test that when I find the time. And maybe re-test on my Linux laptop.
Were you able to understand why Mark's benchmark results are different
from ours?
--
Regards,
Nazir Bilal Yavuz
Microsoft
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Subject: Re: Speed up COPY FROM text/CSV parsing using SIMD
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