This week I already had two serious performance regression cases when upgrading from MySQL 4.0 and 4.1 to MySQL 5.0. By serious I mean several times performance difference not just 5-10% you often see for simple queries due to generally fatter code.
The problem in both cases was MySQL 5.0 broken group commit […]
Just short message that patch enables microsecond resolution in slow-log (see more https://www.percona.com/blog/2006/09/06/slow-query-log-analyzes-tools/) for 5.0.37 is available here:
The patch for 5.0.41 :
As of MySQL 5.1 get MySQL slow query log logged in mysql.slow_log table instead of the file as you had in previous versions.
We rarely would use this feature as it is incompatible with our slow query analyses patch and tools
Fixing this is not trivial while staying 100% compatible to standard format as […]
Reading this slashdot article today and two CIO magazine articles linked from it.
Such discussions started at right place at right time always attract a lot of flamers and can be fun to read.
What hit me this time is quality of the articles in CIO magazine. If this is what managers […]