87       std::ostringstream value_stream;  in Print()  local
88       value_stream.precision(8);  in Print()
89       value_stream << R"({"graph_name":")" << counter.graph_name << R"(",)";  in Print()
90       value_stream << R"("trace_name":")" << counter.trace_name << R"(",)";  in Print()
91       value_stream << R"("units":")" << counter.units << R"(",)";  in Print()
93         value_stream << R"("mean":)" << counter.counter.GetAverage() << ',';  in Print()
94         value_stream << R"("std":)" << counter.counter.GetStandardDeviation()  in Print()
97       value_stream << R"("samples":[)";  in Print()
100         value_stream << sep << R"({"time":)" << sample.time.us() << ','  in Print()
104       value_stream << "]}";  in Print()
106       fprintf(output_, "PLOTTABLE_DATA: %s\n", value_stream.str().c_str());  in Print()
136     std::ostringstream value_stream;  in PrintResult()  local
137     value_stream.precision(8);  in PrintResult()
138     value_stream << value;  in PrintResult()
140     PrintResultImpl(graph_name, trace_name, value_stream.str(), std::string(),  in PrintResult()
152     std::ostringstream value_stream;  in PrintResultMeanAndError()  local
153     value_stream.precision(8);  in PrintResultMeanAndError()
154     value_stream << mean << ',' << error;  in PrintResultMeanAndError()
155     PrintResultImpl(graph_name, trace_name, value_stream.str(), "{", "}",  in PrintResultMeanAndError()
165     std::ostringstream value_stream;  in PrintResultList()  local
166     value_stream.precision(8);  in PrintResultList()
167     OutputListToStream(&value_stream, values);  in PrintResultList()
168     PrintResultImpl(graph_name, trace_name, value_stream.str(), "[", "]", units,  in PrintResultList()