# Designer Laggy after upgrading Java **URL:** \ **Category:** Ignition\ **Tags:** ignition79\ **Created:** [May 4, 2018, 2:07pm UTC](https://forum.inductiveautomation.com/t/designer-laggy-after-upgrading-java/17923 "2018-05-04T14:07:56Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![mbhagotra](https://avatars.discourse-cdn.com/v4/letter/m/b9e5f3/32.png) [@mbhagotra](https://forum.inductiveautomation.com/u/mbhagotra)\ **Post date:** [May 4, 2018, 2:07pm UTC](https://forum.inductiveautomation.com/t/designer-laggy-after-upgrading-java/17923/1 "2018-05-04T14:07:56Z")
Hello, I’ve just upgraded my gateway server and Ignition development VM to Java 1.8.0\_171 (Ignition version 7.9.7). However ever since the upgrade the Designer on my VM has been noticeably laggy with clicks and key presses taking a second longer now. It’s hindering my ability to develop in a timely manner. The VM OS is Windows 10 Enterprise. Prior to the upgrade the Designer was working fine. The designer is allowed a max of 2 GB memory from the gateway but it never exceeds 500 MB. Has anyone else experienced this? Should I downgrade Java to an older version to remedy this? Thanks for reading. ---
**Author:** ![MMaynard](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mmaynard/32/3366_2.png) [@MMaynard](https://forum.inductiveautomation.com/u/MMaynard)\ **Post date:** [May 4, 2018, 2:39pm UTC](https://forum.inductiveautomation.com/t/designer-laggy-after-upgrading-java/17923/2 "2018-05-04T14:39:05Z")
I would delete the local cache first before downgrading. c:\users\YourUserName\.ignition Delete everything under that folder and try again. ---
**Author:** ![mbhagotra](https://avatars.discourse-cdn.com/v4/letter/m/b9e5f3/32.png) [@mbhagotra](https://forum.inductiveautomation.com/u/mbhagotra)\ **Post date:** [May 4, 2018, 2:50pm UTC](https://forum.inductiveautomation.com/t/designer-laggy-after-upgrading-java/17923/3 "2018-05-04T14:50:38Z")
Thanks for the response. Is there a specific version of Java 8 I should downgrade to? I searched through the Inductive Automation website however the only piece of information I found was the following knowledgebase article that doesn’t specify a revision of Java 8. [https://support.inductiveautomation.com/index.php?/Knowledgebase/Article/View/124/0/supported-java-versions-for-ignition-79](https://support.inductiveautomation.com/index.php?/Knowledgebase/Article/View/124/0/supported-java-versions-for-ignition-79) ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [May 4, 2018, 2:56pm UTC](https://forum.inductiveautomation.com/t/designer-laggy-after-upgrading-java/17923/4 "2018-05-04T14:56:44Z")
It’s very unlikely that a Java upgrade is the actual source of the problem. I would get in contact with support to do more thorough troubleshooting. ---
**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Post date:** [May 4, 2018, 3:05pm UTC](https://forum.inductiveautomation.com/t/designer-laggy-after-upgrading-java/17923/5 "2018-05-04T15:05:55Z")
@MMaynard was meaning to try deleting the local cache, then run the designer to see if it helps. ---
**Author:** ![mbhagotra](https://avatars.discourse-cdn.com/v4/letter/m/b9e5f3/32.png) [@mbhagotra](https://forum.inductiveautomation.com/u/mbhagotra)\ **Post date:** [May 4, 2018, 3:11pm UTC](https://forum.inductiveautomation.com/t/designer-laggy-after-upgrading-java/17923/6 "2018-05-04T15:11:32Z")
Sorry forgot to mention I had already tried clearing the cache. Cleared it again just now and the lag is still there. I’ll contact support and see if they have any ideas. Thanks. ---
**Author:** ![hamlinjr](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/hamlinjr/32/8228_2.png) [@hamlinjr](https://forum.inductiveautomation.com/u/hamlinjr)\ **Post date:** [May 4, 2018, 3:24pm UTC](https://forum.inductiveautomation.com/t/designer-laggy-after-upgrading-java/17923/7 "2018-05-04T15:24:34Z")
For what it’s worth, I’m running Java 1.8.0\_171 and Ignition 7.9.7 on both Linux and Windows with no noticeable performance changes from previous Java versions. Would definitely try @paul-griffith’s suggestion. ---
**Author:** ![mbhagotra](https://avatars.discourse-cdn.com/v4/letter/m/b9e5f3/32.png) [@mbhagotra](https://forum.inductiveautomation.com/u/mbhagotra)\ **Post date:** [May 8, 2018, 3:15pm UTC](https://forum.inductiveautomation.com/t/designer-laggy-after-upgrading-java/17923/8 "2018-05-08T15:15:29Z")
To provide some closure to this topic, Inductive tech support figured since my edit count was over 4000 that exporting/importing the project to reset the edit count would help. I definitely noticed better responsiveness after that. ---
**Author:** ![hamlinjr](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/hamlinjr/32/8228_2.png) [@hamlinjr](https://forum.inductiveautomation.com/u/hamlinjr)\ **Post date:** [May 9, 2018, 9:09pm UTC](https://forum.inductiveautomation.com/t/designer-laggy-after-upgrading-java/17923/9 "2018-05-09T21:09:55Z")
Thanks for sharing! I’ve got a project very close to 4k edits…