# system.tag.readAll tag order

**URL:** <https://forum.inductiveautomation.com/t/system-tag-readall-tag-order/8769>\
**Category:** Ignition\
**Created:** [July 22, 2014, 1:30pm UTC](https://forum.inductiveautomation.com/t/system-tag-readall-tag-order/8769 "2014-07-22T13:30:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Chris\_Taylor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/chris_taylor/32/3315_2.png) [@Chris\_Taylor](https://forum.inductiveautomation.com/u/Chris_Taylor)\
**Post date:** [July 22, 2014, 1:30pm UTC](https://forum.inductiveautomation.com/t/system-tag-readall-tag-order/8769/1 "2014-07-22T13:30:27Z")

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A quick question

When using “system.tag.readAll” (and I suppose system.tag.writeAll) is it more efficient if the tags are in some sort of order, i.e the same order as they appear in the tag browser?  
I don’t have any problems at present but I’m always looking for the best practice.

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**Author:** ![drewdin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/drewdin/32/3363_2.png) [@drewdin](https://forum.inductiveautomation.com/u/drewdin)\
**Post date:** [July 22, 2014, 9:00pm UTC](https://forum.inductiveautomation.com/t/system-tag-readall-tag-order/8769/2 "2014-07-22T21:00:08Z")

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no, the order does not matter with one exception, you should know the order. In the writeall function you want to make sure the order of your values line up with the correct tags so you write the correct values down. when reading the results of the readall, you will know what results go with what tag.

Other than that, the order does not matter

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<div class="post-metadata">

**Author:** ![Chris\_Taylor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/chris_taylor/32/3315_2.png) [@Chris\_Taylor](https://forum.inductiveautomation.com/u/Chris_Taylor)\
**Post date:** [July 22, 2014, 10:07pm UTC](https://forum.inductiveautomation.com/t/system-tag-readall-tag-order/8769/3 "2014-07-22T22:07:29Z")

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drewdin

you are not wrong

> [@](#):
>
> you should know the order

wise words.