# 7.7.2 Upgrade - CPU Usage Issues

**URL:** <https://forum.inductiveautomation.com/t/7-7-2-upgrade-cpu-usage-issues/9658>\
**Category:** Ignition\
**Created:** [February 5, 2015, 6:08am UTC](https://forum.inductiveautomation.com/t/7-7-2-upgrade-cpu-usage-issues/9658 "2015-02-05T06:08:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Jerry\_Wu](https://avatars.discourse-cdn.com/v4/letter/j/b2d939/32.png) [@Jerry\_Wu](https://forum.inductiveautomation.com/u/Jerry_Wu)\
**Post date:** [February 5, 2015, 6:08am UTC](https://forum.inductiveautomation.com/t/7-7-2-upgrade-cpu-usage-issues/9658/1 "2015-02-05T06:08:50Z")

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I’m having issues upgrading from 7.7.2 from 7.7.1. Prior to the upgrade, CPU usage is 7-11%. After upgrade it shoots up to 57-66% (occasionally higher). Tags in the database are not able to maintain connection and screens become useless. No changes were made to the application. I’ve tried upping the max memory usage and I’ve tried disabling auto browse. Neither had any effect. Has anyone experienced this or found a fix?