Bug #43161 buf_calc_page_new_checksum and ut_2_power_up use a lot of CPU on busy IO loads
Submitted: 24 Feb 2009 21:58 Modified: 28 Jun 2010 23:53
Reporter: Mark Callaghan Email Updates:
Status: Duplicate Impact on me:
None 
Category:MySQL Server: InnoDB storage engine Severity:S5 (Performance)
Version:5.0, 5.1 bzr OS:Any
Assigned to: Assigned Account CPU Architecture:Any
Tags: buf_calc_page_new_checksum, checksum, io

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: