# Performance Panel
Starting with WeChat 6.5.8, we provide a performance panel to let developers know the performance of Weixin Mini Program.Developers can open the Performance Panel under the Developer App. How to open it: Go to the Developer App, go to the More button in the top right corner, and click Show Performance Window.

# Dxplaination of performance panel indicators
| index | Introductions |
|---|---|
| CPU | Weixin Mini Program Process CPU usage, Android only |
| Memory | Weixin Mini Program Memory footprint of the process (Total Pss), available under Android only |
| Startup takes time | Weixin Mini Program Total start-up time |
| The download takes time | Weixin Mini Program Package download time consuming, download when first opened or when resource package needs to be updated |
| Page switching takes time | Weixin Mini Program Time consuming for page switching |
| Frame Rate / FPS | |
| The first rendering takes time | Time spent on the first render of a page |
| Rendering again is time consuming | Time spent rendering the page again (usually triggered by the developer's setData operation) |
| Data Cache | Weixin Mini Program Cache size stored through the Storage interface |