Hello! On Wed, May 27, 2015 at 05:08:52PM +0300, Дмитрий Шалашов wrote:
> Hi! > > Is there a way to measure time Nginx takes to process request? Not > $request_time, but rather something like "time between request was fully > read and request is ready to pass it to the backend". > I need it to evaluate perfomance of the geoip2 module: > https://github.com/leev/ngx_http_geoip2_module > > I need this because I've measured speed of official MaxMind Perl modules > for legacy and new versions of their databases and found that lib for new > version is hundreds times slower than legacy. (yes, I've used XS version) > Now, I will be using new format anyway - because MaxMind provide only free > legacy databases, and free databases have way too bad accuracy. > But I would like to assess the consequences. > > Maybe $request_time - $upstream_response_time will fit? I don't think that resolution of nginx time-related variables will be enough to measure geoip lookup times. If you want to evaluate performance, I would rather suggest to write some simple configs like: location = /geoip1 { return 200 $geoip_country_code; } location = /geoip2 { return 200 $geoip2_data_country_code; } location = /static { return 200 XX; } and to try benchmarking them with something like wrk. -- Maxim Dounin http://nginx.org/ _______________________________________________ nginx mailing list [email protected] http://mailman.nginx.org/mailman/listinfo/nginx
