Add time_to_first_byte metric
@grzesiek gitlab#216386 (comment 347740863):
I wonder if this would be possible to build a prometheus metric for a complete pages load latency, things that happen before we start sending content
🤔
@grzesiek gitlab#216386 (comment 347740863):
I wonder if this would be possible to build a prometheus metric for a complete pages load latency, things that happen before we start sending content
🤔