increase hitrate

[Reinis Rozitis]

>  I'm realizing that i can only get a hitrate around 0.6 and the throughput 
> is around 43 request per second.  What am I doing wrong? How can I 
> troubleshoot what's going on?
>
>
> sub vcl_deliver {
>    if (obj.hits > 0) {
>        set resp.http.X-Cache = "cached";
>    } else {
>       set resp.http.x-Cache = "uncached";
>   }


Without going too much into the details, do you get those 43 req/s with the 
cached header?
Eg is Varnish even caching anything or just piping the requests back to your 
backend (since in the configuration there are quite a lot conditions where 
the request is not cached)?

p.s. for testing purposes just to see the varnish raw throughput take a 
static file.

rr