# What is the unity for percona template graph with cacti ? **URL:** \ **Category:** Percona Monitoring Plugins\ **Created:** [August 22, 2014, 2:00am UTC](https://forums.percona.com/t/what-is-the-unity-for-percona-template-graph-with-cacti/3688 "2014-08-22T02:00:05Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![saidassoumani](https://avatars.discourse-cdn.com/v4/letter/s/b19c9b/32.png) [@saidassoumani](https://forums.percona.com/u/saidassoumani)\ **Post date:** [August 22, 2014, 2:00am UTC](https://forums.percona.com/t/what-is-the-unity-for-percona-template-graph-with-cacti/3688/1 "2014-08-22T02:00:05Z")
Hi everybody , I have installed cacti with the percona template for monitoring. I have 2 issues : 1 : For a lot of graph I don’t know the unity (axe y ) 2 : For Innodb\_Pool\_size , I see 8k , why ? (in conf file innodb\_pool\_size is 128MB) Someone can help me please ? ---
**Author:** ![saidassoumani](https://avatars.discourse-cdn.com/v4/letter/s/b19c9b/32.png) [@saidassoumani](https://forums.percona.com/u/saidassoumani)\ **Post date:** [August 25, 2014, 12:37am UTC](https://forums.percona.com/t/what-is-the-unity-for-percona-template-graph-with-cacti/3688/2 "2014-08-25T00:37:04Z")
nobody ??? For example : When I read 20,3m for the graph MySQL Command Counter : What does it mean ? ---
**Author:** ![weber](https://avatars.discourse-cdn.com/v4/letter/w/da6949/32.png) [@weber](https://forums.percona.com/u/weber)\ **Post date:** [September 1, 2014, 4:37am UTC](https://forums.percona.com/t/what-is-the-unity-for-percona-template-graph-with-cacti/3688/3 "2014-09-01T04:37:57Z")
1. y axis reflects the actual value, it can be whether counter, bytes, pages, queries, rows depending what graphs you are looking into. More explanation for graphs is here [url][Percona Monitoring Plugins](http://www.percona.com/doc/percona-monitoring-plugins/1.1/cacti/mysql-templates.html%5B/url%5D) 2. innodb buffer pool is displayed in pages. 1 page equals 16KB. See [url][http://dev.mysql.com/doc/internals/en/innodb-page-structure.html[/url]](http://dev.mysql.com/doc/internals/en/innodb-page-structure.html%5B/url%5D) 3. 20,3m means micro, i.e. 20,3\*10^-3. You can ask why it is smaller than 1, this due to the graph shows an average for 5 min. and depending from the metric - the difference, change within 5 min. Say if some constantly increasing counter (e.g. all MySQL Command Counter metrics) is 100 units, in 300 sec. it becomes 200 units, Cacti will show (200-100)/300 = 0.33 or 330m which reflects the value of change, average in 5 min. For absolute counters, you normally will see the absolute numbers.