It depends on what you mean as a miss.  If you mean that it has to go to the 
origin no matter what (even revalidating the cache entry) then it should be 100 
- fresh.

Also, if you hit "a" you can get the stats from since the server started and 
you can get the number of incoming requests and requests going go the origin.

-Bryan



> On Mar 7, 2019, at 4:04 PM, Jason Yang <[email protected]> wrote:
> 
> Hi community, 
>      I see there is such tool traffic_top, but I am confusing which of the 
> number shows miss ratio? 
> By miss ratio I mean the number that 
> miss_ratio*request_traffic=traffic_to_origin. 
> 
> 
> Best, 
> Jason 
> 
> 

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