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From: Alexander Lakhin <[email protected]>
To: David Rowley <[email protected]>
Cc: MARK CALLAGHAN <[email protected]>
Cc: [email protected]
Cc: Andres Freund <[email protected]>
Subject: Re: benchmark results comparing versions 15.2 and 16
Date: Fri, 7 Jul 2023 16:00:01 +0300
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <CAFbpF8N4bVFZ+eyWFj_+fZXZFSayk2kJVtZnouUVKGHudiDrSw@mail.gmail.com>
	<[email protected]>
	<[email protected]>
	<CAApHDvqeYkHJEkh0unC5OsJDDY9o2ZfwPFdQDFdqYxCYOXgLFw@mail.gmail.com>
	<[email protected]>

Hello David,

11.05.2023 16:00, Alexander Lakhin wrote:
> Yeah, I see. It's also interesting to me, which tests perform better after
> that commit. It takes several hours to run all tests, so I can't present
> results quickly, but I'll try to collect this information next week.

To my regret, I could not find such tests that week, so I decided to try
later, after reviewing my benchmark running infrastructure.

But for now, as Postgres Pro company graciously shared the benchmarking
infrastructure project [1], it's possible for anyone to confirm or deny my
results. (You can also see which tests were performed and how.)

Having done one more round of comprehensive testing, I still couldn't find
winning tests for commit 3c6fc5820 (but reassured that
test s64da_tpcds.query87 loses a little (and also s64da_tpcds.query38)).
So it seems to me that the tests I performed or their parameters is not
representative enough for that improvement, unfortunately.

[1] https://github.com/postgrespro/pg-mark

Best regards,
Alexander

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