Hi,
I never heard about an Oracle's counter named HIGH PHYISCAL. But if you think about "Scattered Read" / "Sequential Read" / " buffer busy waits", You can begin by reading this article: http://dev.mysql.com/tech-resources/articles/mysql-query-cache.html Geoffroy. 2007/6/2, Baron Schwartz <[EMAIL PROTECTED]>:
Hi, Ananda Kumar wrote: > Hi All, > Is it possible for us to know if a sql is doing HIGH PHYISCAL or BUFFER > READS in mysql, something we can do in ORACLE. > Just wanted to know, for the sake of sql tuning. I am no Oracle expert, so I'm not sure I know exactly what you mean. However, MySQL does expose many status counters and variables. Learning them all and learning how to make sense of them is a chore. Measuring them effectively is also somewhat tedious. I wrote MySQL Query Profiler to help me with this. As far as I know it is the only tool of its kind. You can get it from http://sourceforge.net/projects/mysqltoolkit/ Baron -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
