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help / color / mirror / Atom feedFrom: lakshmi <[email protected]>
To: Mircea Cadariu <[email protected]>
Cc: Hayato Kuroda (Fujitsu) <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Cc: [email protected] <[email protected]>
Cc: Heikki Linnakangas <[email protected]>
Subject: Re: parallel data loading for pgbench -i
Date: Sat, 9 May 2026 13:32:44 +0530
Message-ID: <CAEvyyTgbQWO9aFtAB+T6O_wHpuwnGGbOUp7qzM8Gjt+mBwAXCw@mail.gmail.com> (raw)
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On Fri, May 8, 2026 at 11:41 PM Mircea Cadariu <[email protected]>
wrote:
> Hi Lakshmi and Hayato,
>
>
> Thanks a lot for your feedback.
>
> Attached for your consideration is v4, in which I address your remarks.
>
Hi Mircea, Hayato,
I tested the v4 patch on 19devel with a few different thread/partition
combinations.
The updated API looks much better now. I verified that:
- parallel loading works correctly with -j
- uneven partition distribution (for example 5 partitions with 2
threads) also works fine
- serial mode with -j 1 works again as expected
The workers appear to run concurrently, and VACUUM time remains relatively
small in my tests.
Overall, the new approach looks much cleaner and more flexible compared to
the earlier versions.
Thanks again for the update.
Best regards,
Lakshmi
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