Update default values for server.throughput.unit (#635)

server/server.go

@@ -217,7 +217,7 @@ func (cfg *Config) RegisterFlags(f *flag.FlagSet) {
 	f.BoolVar(&cfg.LogRequestAtInfoLevel, "server.log-request-at-info-level-enabled", false, "Optionally log requests at info level instead of debug level. Applies to request headers as well if server.log-request-headers is enabled.")
 	f.BoolVar(&cfg.ProxyProtocolEnabled, "server.proxy-protocol-enabled", false, "Enables PROXY protocol.")
 	f.DurationVar(&cfg.Throughput.LatencyCutoff, "server.throughput.latency-cutoff", 0, "Requests taking over the cutoff are be observed to measure throughput. Server-Timing header is used with specified unit as the indicator, for example 'Server-Timing: unit;val=8.2'. If set to 0, the throughput is not calculated.")
-	f.StringVar(&cfg.Throughput.Unit, "server.throughput.unit", "total_samples", "Unit of the server throughput metric, for example 'processed_bytes' or 'total_samples'. Observed values are gathered from the 'Server-Timing' header with the 'val' key. If set, it is appended to the request_server_throughput metric name.")
+	f.StringVar(&cfg.Throughput.Unit, "server.throughput.unit", "samples_processed", "Unit of the server throughput metric, for example 'processed_bytes' or 'samples_processed'. Observed values are gathered from the 'Server-Timing' header with the 'val' key. If set, it is appended to the request_server_throughput metric name.")
 }
 
 func (cfg *Config) registererOrDefault() prometheus.Registerer {