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help / color / mirror / Atom feedFrom: Chao Li <[email protected]>
To: John Naylor <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Cc: Peter Geoghegan <[email protected]>
Subject: Re: tuple radix sort
Date: Thu, 30 Oct 2025 11:45:32 +0800
Message-ID: <[email protected]> (raw)
In-Reply-To: <CANWCAZbrKH-sDvzqb5z8BEofpXyXuN42UCRzoQ8wT3CiqPATFg@mail.gmail.com>
References: <CANWCAZYzx7a7E9AY16Jt_U3+GVKDADfgApZ-42SYNiig8dTnFA@mail.gmail.com>
<[email protected]>
<CANWCAZbrKH-sDvzqb5z8BEofpXyXuN42UCRzoQ8wT3CiqPATFg@mail.gmail.com>
> On Oct 30, 2025, at 11:40, John Naylor <[email protected]> wrote:
>
> On Thu, Oct 30, 2025 at 8:56 AM Chao Li <[email protected]> wrote:
>
>> I changed work_men to 1GB and reran the test. As the high cardinality data are still there, so I first reran with data:
>
>> With radix_sort on and off, execution time are almost the same.
>
> Are you by chance running with asserts on? It's happened before, so I
> have to make sure. That makes a big difference here because I disabled
> diversion thresholds in assert builds so that regression tests (few
> cases with large inputs) cover the paths I want, in addition to my
> running a standalone stress test.
>
Yes, assert is always enabled in my sandbox. I can disable assert and rerun the test later.
Best regards,
--
Chao Li (Evan)
HighGo Software Co., Ltd.
https://www.highgo.com/
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