June 20, 2013

Comment: Why MySQL could be slow with large tables ?

… predominantly SELECTed table, I went for MYISAM. My my.cnf variables were as follows on a 4GB RAM system, Red Hat Enterprise with dual SCSI… will have to do this check in the application. Just my experience. I know some big websites are using MySQL, but…

Comment: Why you should ignore MySQL's key cache hit ratio

Patrick, can you substantiate that assertion more? In my experience, “tuning by ratio” leads to wildly stupid results that … people would’ve been better off not touching their default my.cnf at all. So I’d flip things around: in 80… finger and poked it into the breeze: “I have 4GB of RAM and 1GB of indexes on disk, so 256MB of key…

Comment: Why MySQL could be slow with large tables ?

… Linux. The box has 2GB of RAM, it has dual 2.8GHz Xeon processors, and /etc/my.cnf file looks like this. [mysqld… new row). Up to about 15,000,000 rows (1.4GB of data) the procedure was quite fast (500-1000 rows…