2009/11/18 Nerius Landys <nlan...@gmail.com> > A friend and I are working on a small video-game related project as a > hobby. We're running several scripts 24/7 that make lots of calls to > a MySQL database. The mysql server process shows an average CPU use > of 1% (reported by top) and it never goes above about 2% The tables > it's hitting are myisam tables. I'm a little bit worried that the > mysql process is using a lot of disk access. I don't know too much > about hard disks but my feeling is that too much disk use could slow > the machine down or cause a premature hard disk failure. WD Raptor > model. > > I don't know if my concerns are well-founded, but I would like to > measure impact on the hard disk somehow. I don't know how to see disk > I/O. I do know how to use top. How do I measure disk I/O? Any other > thoughts? > _______________________________________________ > email@example.com mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscr...@freebsd.org" >
If you are worried about disk io and your db isnt to big, but to big to fit into ram, get a SD drive and put the db data on it. If your db is to big to fit on a sensibly priced SD, and your machine is suitably speced you could look at creating a zfs pool with a SD configured as an l2arc. The SD will then cache the most accessed parts of the db, and can dramatically increase performance. I am assuming that you have optimized your code though as well, as this should be your 1st point of call _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"