# Why Raspberry pi becomes slow while running for a long time?

**URL:** <https://discourse.nodered.org/t/why-raspberry-pi-becomes-slow-while-running-for-a-long-time/35144>\
**Category:** Dashboard\
**Created:** [1 November 2020 04:33 UTC](https://discourse.nodered.org/t/why-raspberry-pi-becomes-slow-while-running-for-a-long-time/35144 "2020-11-01T04:33:51Z")\
**Posts on this page:** 1\
**Showing post:** 22

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**Author:** ![WillWelker](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/willwelker/32/771_2.png) [@WillWelker](https://discourse.nodered.org/u/WillWelker)\
**Post date:** [5 November 2020 12:52 UTC](https://discourse.nodered.org/t/why-raspberry-pi-becomes-slow-while-running-for-a-long-time/35144/22 "2020-11-05T12:52:32Z")

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I have had this happen when using charts. Charts plot many point and over time those point start hogging resources. Try disabling the charts to see if that solves it.  
I try to write data to the charts once every 10 minutes or even once an hour if possible to avoid massive data point being stored on the charts.  
**Grafana** might also be your solution, it stores data point in a data base so you won't be trying to store all those data point in the browser's ram allotment.

> **[Embed Grafana Chart in NR dashboard (flow) - Node-RED](https://flows.nodered.org/flow/8e96b8630c4edc866aa0459354033c9b)**

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