# Thin purple line in waterfall - what does this mean?

**URL:** <https://community.dynatrace.com/t/thin-purple-line-in-waterfall-what-does-this-mean/44214>\
**Category:** Real User Monitoring\
**Tags:** real-user-monitoring-classic\
**Created:** [February 21, 2024, 4:36am UTC](https://community.dynatrace.com/t/thin-purple-line-in-waterfall-what-does-this-mean/44214 "2024-02-21T04:36:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sarah\_wolfe](https://avatars.discourse-cdn.com/v4/letter/s/d07c76/32.png) [@sarah\_wolfe](https://community.dynatrace.com/u/sarah_wolfe)\
**Post date:** [February 21, 2024, 4:36am UTC](https://community.dynatrace.com/t/thin-purple-line-in-waterfall-what-does-this-mean/44214/1 "2024-02-21T04:36:53Z")

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Hi all,

Typically a thin purple line in a waterfall indicates browser processing. This particular example appears to be almost&nbsp; **all** browser processing according. Could this be something other than BP? What is a good explanation for this occurring?

 ![sarah_wolfe_0-1708490137276.png](https://global.discourse-cdn.com/dynatrace/original/3X/b/4/b4a7dd3838d35a3dd200fe8ba77f051a37c783e2.png)

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**Author:** ![ChadTurner](https://dub1.discourse-cdn.com/dynatrace/user_avatar/community.dynatrace.com/chadturner/32/161_2.png) [@ChadTurner](https://community.dynatrace.com/u/ChadTurner)\
**Post date:** [March 27, 2024, 2:56pm UTC](https://community.dynatrace.com/t/thin-purple-line-in-waterfall-what-does-this-mean/44214/2 "2024-03-27T14:56:07Z")

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The thickness of the lines indicate time spent Under the main request we see underlying constructs processing in milliseconds, but the action took 180 Seconds, so comparatively, the other segments are tiny vertical slices. For the thingness of the horizontal line, that showcases when there are gaps in the processing, For example, its thin but then gets larger, and that thinness showcases of inactivity vs activity overall for the sub processes of the request/segment.

 ![ChadTurner_0-1711551337817.png](https://global.discourse-cdn.com/dynatrace/original/3X/6/e/6ef6fcbd2e21948b4033260960cc744c8e4da38b.png)