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help / color / mirror / Atom feedFrom: Hayato Kuroda (Fujitsu) <[email protected]>
To: 'lakshmi' <[email protected]>
Cc: Mircea Cadariu <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Cc: [email protected] <[email protected]>
Subject: RE: parallel data loading for pgbench -i
Date: Fri, 20 Feb 2026 09:59:15 +0000
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In-Reply-To: <CAEvyyTiQqd=rv3XUxc0YEaW-feopksBveZKKjVZNeSVG=GrY+A@mail.gmail.com>
References: <[email protected]>
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Dear Iakshmi,
Thanks for the measurement!
> For scale 500, the serial initialization on my system takes around 34.3 seconds.
> Using parallel initialization without partitions (-j 10) makes the client-side
> data generation noticeably faster,But the overall runtime ends up slightly
> higher because the vacuum phase becomes much longer.
To confirm, do you know the reason why the VACUUMing needs more time than serial case?
Best regards,
Hayato Kuroda
FUJITSU LIMITED
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Subject: RE: parallel data loading for pgbench -i
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