# Memory tags performance **URL:** \ **Category:** Ignition\ **Tags:** ignition80\ **Created:** [July 1, 2020, 1:17pm UTC](https://forum.inductiveautomation.com/t/memory-tags-performance/36244 "2020-07-01T13:17:40Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![ignaciorostagno](https://avatars.discourse-cdn.com/v4/letter/i/b9e5f3/32.png) [@ignaciorostagno](https://forum.inductiveautomation.com/u/ignaciorostagno)\ **Post date:** [July 1, 2020, 1:17pm UTC](https://forum.inductiveautomation.com/t/memory-tags-performance/36244/1 "2020-07-01T13:17:40Z")
Hi All, I’m having high I/O usage while I’m writing memory tags. I am running Ignition 8.0.10 on linux (Centos 8.2.2004) inside a VirtualBox VM. I have 1000 memory tags being written every second with a new value and i notice there is high disk usage. iotop show a java process (i’m not sure but it apears to be [provider-default] is doing a lot of write (about 800kb/s). Looking where is writting I have founded /var/lib/ignition/data/db/config.idb and /var/lib/ignition/data/db/config.idb-journal. ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [July 1, 2020, 1:22pm UTC](https://forum.inductiveautomation.com/t/memory-tags-performance/36244/2 "2020-07-01T13:22:21Z")
Memory tags persist their value to the internal DB, otherwise they wouldn’t be able to retain their values on gateway restart. ---
**Author:** ![ignaciorostagno](https://avatars.discourse-cdn.com/v4/letter/i/b9e5f3/32.png) [@ignaciorostagno](https://forum.inductiveautomation.com/u/ignaciorostagno)\ **Post date:** [July 1, 2020, 2:12pm UTC](https://forum.inductiveautomation.com/t/memory-tags-performance/36244/3 "2020-07-01T14:12:54Z")
Is there any way of disable persistence for some memory tags? Or another type of tag (or property) that can be setup as non persistent?