As I can see the changes in these values are use by percona cacti monitoring templates to graph "InnoDB I/O". Can anyone answer the question finally? ;)
2013/6/21 Hartmut Holzgraefe <hart...@skysql.com> > On 21.06.2013 13:59, Rafał Radecki wrote: > > Hi All. > > > > I've searched but with no luck... what do exactly these variables mean: > > > > 1343928 OS file reads, 1085452262 OS file writes, 19976022 OS fsyncs > > > > ? > > these are the total number of reads/writes/fsyncs (number of system > calls actually?) since the server started (or maybe last FLUSH call?) > and not very meaningful by themselves without knowing the time span > it took to come up to those counter values. > > The per second values on the following line are much more interesting. > > > http://www.mysqlperformanceblog.com/2006/07/17/show-innodb-status-walk-through/ > > has a pretty good description of the SHOW ENGINE INNODB STATUS output, > even though it is not too detailed in this specific section. > > > -- > Hartmut Holzgraefe <hart...@skysql.com> > Principal Support Engineer (EMEA) > SkySQL AB - http://www.skysql.com/ > > -- > MySQL General Mailing List > For list archives: http://lists.mysql.com/mysql > To unsubscribe: http://lists.mysql.com/mysql > >
