![]() ![]() DevTools records performance metrics while the page reloads and then automatically stops the recording a couple seconds after the page load has finished. DevTools can't truly simulate the CPUs of mobile devices because the architecture of mobile devices is very different from that of desktops and laptops.Ĭlick refresh Measure page load. For example, the 4x slowdown option makes your CPU operate 4 times slower than usual. Key point: Throttling is relative to your computer's capabilities. For this tutorial, check Disable cache and set CPU to 4x slowdown in the drop-down menu: You can throttle the network and CPU while recording. Open this demo page in a new tab and, on the page, open the Performance insights panel.The Performance insights panel can record general and use-case-driven (for example, page load) performance. Open the Performance insights panelĬlick on More options more_vert > More tools > Performance insights.Īlternatively, use the Command Menu to open the Performance insights panel. Continue reading or watch the video version of this tutorial above. This tutorial teaches you how to measure and understand your page load performance with the Performance insights panel. The Performance insights panel highlights the key insights in the Insights pane, with actionable feedback on how to fix issues. ![]()
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