SLEEP_INTERVAL=8 PROJECT=bun node read-frames.js
bun
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 CSS HMR FRAME TIME

 50th percentile: 20ms 
 75th percentile: 24.4ms 
 90th percentile: 41ms 
 95th percentile: 53.9ms 
 99th percentile: 90.4ms 
 Rendered frames: 475 / 1024 (46%)