Time to replace the hit ratio with something more intuitive?

Rob S rtshilston at gmail.com
Tue Jan 19 22:40:03 CET 2010

Michael Fischer wrote:
> On Tue, Jan 19, 2010 at 12:09 PM, Nils Goroll <slink at schokola.de 
> <mailto:slink at schokola.de>> wrote:
>     I am suggesting to amend (or replace ?) this figure by a ratio of
>     client
>     requests being handled by the cache by total number of requests.
>     In other words,
>     a measure for how many of the client requests do not result in a
>     backend request.
> I vote for the replacement option.  In my view, the ratio should be 
> (total requests)/(requests satisfied from cache).
That'd give odd figures (eg 1.25), when you'd expect to see 0.8.  Can we 
flip it the other way up?

I'd also caution against replacing, as people may have monitoring 
against the old figures...


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