Bug #100119 Switch to use relaxed memory barrier for redo-log counters
Submitted: 6 Jul 2020 7:07 Modified: 14 Aug 2020 13:10
Reporter: Krunal Bauskar Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Server: InnoDB storage engine Severity:S5 (Performance)
Version:8.0.20 OS:Any
Assigned to: CPU Architecture:ARM
Tags: arm, memory-barrier, performance

File: Maximum allowed size is 50MB.
Description:
Privacy:

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:

[6 Jul 2020 7:08] Krunal Bauskar 
patch for the bug

Attachment: perf#logtypes-memory-barrier.patch (text/x-patch), 4.62 KiB.
[6 Jul 2020 7:09] Krunal Bauskar 
arm benchmark

Attachment: arm.png (image/png, text), 104.72 KiB.
[6 Jul 2020 7:09] Krunal Bauskar 
x86 benchmark

Attachment: x86.png (image/png, text), 96.44 KiB.
[14 Aug 2020 13:09] Krunal Bauskar 
x86 re-benchmarked

Attachment: x86_8021.png (image/png, text), 48.86 KiB.