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help / color / mirror / Atom feedFrom: Peter J. Holzer <[email protected]>
To: [email protected]
Subject: Re: How batch processing works
Date: Sun, 22 Sep 2024 21:23:21 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAKna9VZA5x1g7-4j8cQrW1ByqX5jtPwY7sY2MHuRgrxrOu4LBg@mail.gmail.com>
References: <CAKna9VY2v0XsDberzbJXZ4MqEW1RUtD0L_Mis_vrgEQWZgH0gg@mail.gmail.com>
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On 2024-09-21 20:55:13 +0530, Lok P wrote:
> On Sat, Sep 21, 2024 at 8:07 PM Peter J. Holzer <[email protected]> wrote:
[... lots of code elided. method2 used 1 insert per row, method3 1
insert for 50 rows ...]
> On my laptop, method2 is about twice as fast as method3. But if I
> connect to a database on the other side of the city, method2 is now more
> than 16 times faster than method3 . Simply because the delay in
> communication is now large compared to the time it takes to insert those
> rows.
>
>
>
> Thank you so much.
> I was expecting method-3(batch insert) to be the fastest or atleast as you said
> perform with similar speed as method-2 (row by row insert with batch commit)
Oops, sorry! I wrote that the wrong way around. Method 3 is the fastest.
I guess I meant to write "method2 takes about twice as long as method3"
or something like that.
hp
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_ | Peter J. Holzer | Story must make more sense than reality.
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| | | [email protected] | -- Charles Stross, "Creative writing
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