# About trajectory size

**URL:** <https://ask.bioexcel.eu/t/about-trajectory-size/4798>\
**Category:** Webinar #75 - VIAMD\
**Created:** [February 6, 2024, 3:22pm UTC](https://ask.bioexcel.eu/t/about-trajectory-size/4798 "2024-02-06T15:22:07Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![alevil](https://dub1.discourse-cdn.com/flex013/user_avatar/ask.bioexcel.eu/alevil/32/346_2.png) [@alevil](https://ask.bioexcel.eu/u/alevil)\
**Post date:** [February 6, 2024, 3:22pm UTC](https://ask.bioexcel.eu/t/about-trajectory-size/4798/1 "2024-02-06T15:22:07Z")

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Hi  
What will be the file size of the trajectory file ? I mean is big trajectory file is supported ?

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**Author:** ![linares](https://avatars.discourse-cdn.com/v4/letter/l/e274bd/32.png) [@linares](https://ask.bioexcel.eu/u/linares)\
**Post date:** [February 6, 2024, 3:52pm UTC](https://ask.bioexcel.eu/t/about-trajectory-size/4798/2 "2024-02-06T15:52:46Z")

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YES! I have worked with trajectories up to 5-10 Gb without issue.

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**Author:** ![scanberg](https://avatars.discourse-cdn.com/v4/letter/s/5f9b8f/32.png) [@scanberg](https://ask.bioexcel.eu/u/scanberg)\
**Post date:** [February 6, 2024, 7:51pm UTC](https://ask.bioexcel.eu/t/about-trajectory-size/4798/3 "2024-02-06T19:51:15Z")

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To clarify here as well. There is not a hard upper bound in trajectory size. The internal frame cache will stream in frames on demand if they are not present in memory from disk.