Bug #102206 Using double write buffer is 8x slower in SSD (compared with 2x~3x in HDD)
Submitted: 10 Jan 2021 4:13 Modified: 14 Jan 2021 2:22
Reporter: haochen he Email Updates:
Status: Can't repeat Impact on me:
None 
Category:MySQL Server Severity:S2 (Serious)
Version:8.0.22 OS:Ubuntu (20.10-Desktop)
Assigned to: CPU Architecture:x86
Tags: performance, SSD

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: