# Max Memory

**URL:** <https://forum.inductiveautomation.com/t/max-memory/9179>\
**Category:** Ignition\
**Created:** [October 14, 2014, 8:08pm UTC](https://forum.inductiveautomation.com/t/max-memory/9179 "2014-10-14T20:08:22Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![allenr8](https://avatars.discourse-cdn.com/v4/letter/a/e56c9b/32.png) [@allenr8](https://forum.inductiveautomation.com/u/allenr8)\
**Post date:** [October 14, 2014, 8:08pm UTC](https://forum.inductiveautomation.com/t/max-memory/9179/1 "2014-10-14T20:08:22Z")

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I am following the tag max memory. It seems to be pegged at 1 GB, but I have much more available. How is the max memory set for a system? If I want to adjust it up - where would I do that?

Thanks

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**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:** [October 14, 2014, 8:12pm UTC](https://forum.inductiveautomation.com/t/max-memory/9179/2 "2014-10-14T20:12:36Z")

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Wherever you installed Ignition you should find an ignition.conf file that lets you adjust the max memory.

For 32-bit systems the limit is 1536mb. There is no limitation on 64-bit.

You will need to restart the gateway for it to take effect.

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**Author:** ![allenr8](https://avatars.discourse-cdn.com/v4/letter/a/e56c9b/32.png) [@allenr8](https://forum.inductiveautomation.com/u/allenr8)\
**Post date:** [October 14, 2014, 8:14pm UTC](https://forum.inductiveautomation.com/t/max-memory/9179/3 "2014-10-14T20:14:21Z")

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If I have 16GB and it is on a linux machine with really nothing else installed is there any reason I couldn’t tell it 16 or should I back off a bit?

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**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:** [October 14, 2014, 8:55pm UTC](https://forum.inductiveautomation.com/t/max-memory/9179/4 "2014-10-14T20:55:45Z")

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You should always leave a few GB for the OS… but is there any reason you need that much? How big is this system going to be?

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**Author:** ![allenr8](https://avatars.discourse-cdn.com/v4/letter/a/e56c9b/32.png) [@allenr8](https://forum.inductiveautomation.com/u/allenr8)\
**Post date:** [October 14, 2014, 8:56pm UTC](https://forum.inductiveautomation.com/t/max-memory/9179/5 "2014-10-14T20:56:52Z")

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Not huge - probably 10,000 tags.

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<div class="post-metadata">

**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:** [October 14, 2014, 11:05pm UTC](https://forum.inductiveautomation.com/t/max-memory/9179/6 "2014-10-14T23:05:12Z")

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2gb should be plenty… are you sure you even used the 1gb? Where are you checking for usage?

If not the status page or memory tab on the gateway check those as well.

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<div class="post-metadata">

**Author:** ![allenr8](https://avatars.discourse-cdn.com/v4/letter/a/e56c9b/32.png) [@allenr8](https://forum.inductiveautomation.com/u/allenr8)\
**Post date:** [October 14, 2014, 11:18pm UTC](https://forum.inductiveautomation.com/t/max-memory/9179/7 "2014-10-14T23:18:04Z")

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No I haven’t used the 1GB yet, but just want to check on it. I saw it in the Max Memory tag under system.

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**Author:** ![robwarren](https://avatars.discourse-cdn.com/v4/letter/r/7cd45c/32.png) [@robwarren](https://forum.inductiveautomation.com/u/robwarren)\
**Post date:** [January 23, 2019, 7:58pm UTC](https://forum.inductiveautomation.com/t/max-memory/9179/8 "2019-01-23T19:58:17Z")

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For easy Finding  
The 2 lines are:

wrapper.java.initmemory=

wrapper.java.maxmemory=
