Bug #106720 it is better to make a conditional judgment before entering the while loop

• Submitted: 13 Mar 2022 13:55
• Modified: 14 Mar 2022 5:37
• Reporter: alex xing (OCA)
• Status: Verified
• Category: MySQL Server: InnoDB storage engine
• Severity: S5 (Performance)
• Version: 8.0.26
• OS: Any
• CPU Architecture: Any
• Tags: Contribution

[13 Mar 2022 13:55] alex xing

Description:
it is better to make a conditional judgment before entering the while loop in btr_print_recursive, which reduces the times of judgments and is more CPU-friendly

How to repeat:
just read the code

Suggested fix:
make a conditional judgment before entering the while loop just as the below patch

[13 Mar 2022 13:56] alex xing

a simple patch to describe the optimization

(*) I confirm the code being submitted is offered under the terms of the OCA, and that I am authorized to contribute it.

Contribution: optimize.patch (text/plain), 1.55 KiB.

[14 Mar 2022 5:37] MySQL Verification Team

Hello Alex Xing,

Thank you for the report and contribution.

regards,
Umesh