Squashed commit of the following:

Descriptors/GPXDescriptor.h

@@ -56,8 +56,9 @@ class GPXDescriptor : public BaseDescriptor<DataFacadeT> {
                 "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" "
                 "xsi:schemaLocation=\"http://www.topografix.com/GPX/1/1 gpx.xsd"
                 "\">");
+        reply.content.push_back("<metadata>");
         reply.content.push_back(
-                "<metadata><copyright author=\"Project OSRM\"><license>Data (c)"
+                "<copyright author=\"Project OSRM\"><license>Data (c)"
                 " OpenStreetMap contributors (ODbL)</license></copyright>"
                 "</metadata>");
         reply.content.push_back("<rte>");

Descriptors/JSONDescriptor.h

@@ -115,9 +115,8 @@ class JSONDescriptor : public BaseDescriptor<DataFacadeT> {
         http::Reply & reply
     ) {
         facade = f;
-        reply.content.push_back(
-            "{\"status\":"
-        );
+        reply.content.push_back("{");
+        reply.content.push_back("\"status\":");
 
         if(INT_MAX == raw_route.lengthOfShortestPath) {
             //We do not need to do much, if there is no route ;-)

Include/osrm/RouteParameters.h

@@ -45,6 +45,7 @@ struct RouteParameters {
         geometry(true),
         compression(true),
         deprecatedAPI(false),
+        exec_time(false),
         checkSum(-1)
     { }
 
@@ -54,6 +55,7 @@ struct RouteParameters {
     bool geometry;
     bool compression;
     bool deprecatedAPI;
+    bool exec_time;
     unsigned checkSum;
     std::string service;
     std::string outputFormat;
@@ -76,6 +78,10 @@ struct RouteParameters {
         deprecatedAPI = true;
     }
 
+    void setExecTimeFlag(const bool b) {
+        exec_time = b;
+    }
+
     void setChecksum(const unsigned c) {
         checkSum = c;
     }

Plugins/NearestPlugin.h

@@ -31,6 +31,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "BasePlugin.h"
 #include "../DataStructures/PhantomNodes.h"
 #include "../Util/StringUtil.h"
+#include "../Util/TimingUtil.h"
 
 #include <boost/unordered_map.hpp>
 
@@ -65,13 +66,16 @@ class NearestPlugin : public BasePlugin {
             return;
         }
 
+	TimeMeasurement exec_time;
         PhantomNode result;
         facade->FindPhantomNodeForCoordinate(
             routeParameters.coordinates[0],
             result,
             routeParameters.zoomLevel
         );
 
+        int64_t time_ms = exec_time.toNowInMs();
+
         std::string temp_string;
         //json
 
@@ -81,7 +85,12 @@ class NearestPlugin : public BasePlugin {
         }
 
         reply.status = http::Reply::ok;
-        reply.content.push_back("{\"status\":");
+        reply.content.push_back("{");
+        if (routeParameters.exec_time) {
+                int64ToString(time_ms, temp_string);
+                reply.content.push_back("\"exec_time_ms\":" + temp_string + ",");
+        }
+        reply.content.push_back("\"status\":");
         if(UINT_MAX != result.edgeBasedNode) {
             reply.content.push_back("0,");
         } else {

Plugins/ViaRoutePlugin.h

@@ -38,6 +38,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "../Descriptors/JSONDescriptor.h"
 #include "../Util/SimpleLogger.h"
 #include "../Util/StringUtil.h"
+#include "../Util/TimingUtil.h"
 
 #include <boost/unordered_map.hpp>
 
@@ -81,6 +82,7 @@ class ViaRoutePlugin : public BasePlugin {
             return;
         }
 
+        TimeMeasurement exec_time;
         RawRouteData rawRoute;
         rawRoute.checkSum = facade->GetCheckSum();
         const bool checksumOK = (routeParameters.checkSum == rawRoute.checkSum);
@@ -156,17 +158,16 @@ class ViaRoutePlugin : public BasePlugin {
         descriptorConfig.geometry = routeParameters.geometry;
         descriptorConfig.encode_geometry = routeParameters.compression;
 
+	std::string exec_time_token;
         switch(descriptorType){
-        case 0:
-            desc = new JSONDescriptor<DataFacadeT>();
-
-            break;
         case 1:
             desc = new GPXDescriptor<DataFacadeT>();
-
+            exec_time_token = "<metadata>";
             break;
+        case 0:
         default:
             desc = new JSONDescriptor<DataFacadeT>();
+            exec_time_token = "{";
 
             break;
         }
@@ -177,6 +178,25 @@ class ViaRoutePlugin : public BasePlugin {
         desc->SetConfig(descriptorConfig);
 
         desc->Run(rawRoute, phantomNodes, facade, reply);
+
+        if (routeParameters.exec_time) {
+            int64_t time_ms = exec_time.toNowInMs();
+            std::vector<std::string>::iterator it = reply.content.begin();
+            for (; it != reply.content.end(); ++it) {
+                if (0 == (*it).compare(0, exec_time_token.size(), exec_time_token)) {
+			break; // we have found place to insert exec time metric
+                }
+            }
+            if (it != reply.content.end()) {
+                std::string temp_string;
+                int64ToString(time_ms, temp_string);
+                reply.content.insert(++it, (1 == descriptorType)?
+                    "<exec_time_ms>" + temp_string + "</exec_time_ms>" : "\"exec_time_ms\":" + temp_string + ","
+                );
+            } else {
+                SimpleLogger().Write(logDEBUG) << "Can't find place to insert exec time metric";
+            }
+        }
         if("" != routeParameters.jsonpParameter) {
             reply.content.push_back(")\n");
         }

Server/APIGrammar.h

@@ -38,7 +38,7 @@ template <typename Iterator, class HandlerT>
 struct APIGrammar : qi::grammar<Iterator> {
     APIGrammar(HandlerT * h) : APIGrammar::base_type(api_call), handler(h) {
         api_call = qi::lit('/') >> string[boost::bind(&HandlerT::setService, handler, ::_1)] >> *(query);
-        query    = ('?') >> (+(zoom | output | jsonp | checksum | location | hint | cmp | language | instruction | geometry | alt_route | old_API) ) ;
+        query    = ('?') >> (+(zoom | output | jsonp | checksum | location | hint | cmp | language | instruction | geometry | alt_route | old_API | exec_time) ) ;
 
         zoom        = (-qi::lit('&')) >> qi::lit('z')            >> '=' >> qi::short_[boost::bind(&HandlerT::setZoomLevel, handler, ::_1)];
         output      = (-qi::lit('&')) >> qi::lit("output")       >> '=' >> string[boost::bind(&HandlerT::setOutputFormat, handler, ::_1)];
@@ -52,6 +52,7 @@ struct APIGrammar : qi::grammar<Iterator> {
         language    = (-qi::lit('&')) >> qi::lit("hl")           >> '=' >> string[boost::bind(&HandlerT::setLanguage, handler, ::_1)];
         alt_route   = (-qi::lit('&')) >> qi::lit("alt")          >> '=' >> qi::bool_[boost::bind(&HandlerT::setAlternateRouteFlag, handler, ::_1)];
         old_API     = (-qi::lit('&')) >> qi::lit("geomformat")   >> '=' >> string[boost::bind(&HandlerT::setDeprecatedAPIFlag, handler, ::_1)];
+	exec_time   = (-qi::lit('&')) >> qi::lit("exec_time")  >> '=' >> qi::bool_[boost::bind(&HandlerT::setExecTimeFlag, handler, ::_1)];
 
         string            = +(qi::char_("a-zA-Z"));
         stringwithDot     = +(qi::char_("a-zA-Z0-9_.-"));
@@ -61,7 +62,7 @@ struct APIGrammar : qi::grammar<Iterator> {
     qi::rule<Iterator> api_call, query;
     qi::rule<Iterator, std::string()> service, zoom, output, string, jsonp, checksum, location, hint,
                                       stringwithDot, stringwithPercent, language, instruction, geometry,
-                                      cmp, alt_route, old_API;
+                                      cmp, alt_route, old_API, exec_time;
 
     HandlerT * handler;
 };

Util/TimingUtil.h

@@ -28,6 +28,10 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef TIMINGUTIL_H_
 #define TIMINGUTIL_H_
 
+#include "../typedefs.h"
+
+#include <boost/date_time/posix_time/posix_time.hpp>
+
 // excluded as this requires boost 1.47 (for now)
 // #include <boost/chrono.hpp>
 // #include <boost/timer/timer.hpp>
@@ -68,4 +72,25 @@ static inline double get_timestamp() {
     return double(tp.tv_sec) + tp.tv_usec / 1000000.;
 }
 
+class TimeMeasurement {
+public:
+    TimeMeasurement() throw() { fromNow(); }
+    inline void fromNow() throw() {
+        m_from = boost::posix_time::microsec_clock::local_time();
+    }
+    // get time period from the fromNow() func. calling to now in milliseconds
+    inline int64_t toNowInMs() const throw() {
+        boost::posix_time::time_duration diff = boost::posix_time::microsec_clock::local_time() - m_from;
+        return diff.total_milliseconds();
+    }
+    // get time period from the fromNow() func. calling to now in seconds
+    inline int64_t toNowInSec() const throw() {
+        boost::posix_time::time_duration diff = boost::posix_time::microsec_clock::local_time() - m_from;
+        return diff.total_seconds();
+    }
+
+private:
+    boost::posix_time::ptime m_from;
+};
+
 #endif /* TIMINGUTIL_H_ */