MySQL Bugs: #106956: The critical area of the pq_mutex in the trx

Bug #106956	The critical area of the pq_mutex in the trx_serialisation can be optimized
Submitted:	8 Apr 2022 9:16	Modified:	22 Apr 2022 2:13
Reporter:	sibeier huang	Email Updates:
Status:	Verified	Impact on me:	None
Category:	MySQL Server: InnoDB storage engine	Severity:	S5 (Performance)
Version:	8.0	OS:	Any
Assigned to:		CPU Architecture:	Any

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If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.

To split a large file:

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pq_mutex critical area optimization patches

Attachment: 8_0_28_wo_opt.patch (application/octet-stream, text), 1.58 KiB.

A patch for this bug.

Attachment: 8028_srv_cpu_usage.patch (application/octet-stream, text), 880 bytes.