MySQL Bugs: #33948: performance issue when using sysbench benchmark on a multiple-core system.

Bug #33948	performance issue when using sysbench benchmark on a multiple-core system.
Submitted:	20 Jan 2008 15:16	Modified:	31 Jul 2009 10:44
Reporter:	terry tao	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Server	Severity:	S5 (Performance)
Version:	5.1.22	OS:	Linux (rhas5)
Assigned to:		CPU Architecture:	Any
Tags:	Contribution, mysql-5.1.22

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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:

On *nix platforms use the split command e.g. split -b 50MB <my_large_archive> <my_split_archive_prefix>
On windows use WinZip or a similar utility to split the large file

the patch prototype for test.

Attachment: mysql-5.1.22-open_cache.patch (application/octet-stream, text), 4.72 KiB.

the result.

Attachment: sysbench_innodb_1000000.png (image/png, text), 5.91 KiB.