| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "perf_test.h" |
| |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <vector> |
| |
| namespace { |
| |
| std::string FormatString(const char *fmt, va_list vararg) { |
| static std::vector<char> buffer(512); |
| |
| // Attempt to just print to the current buffer |
| int len = vsnprintf(&buffer[0], buffer.size(), fmt, vararg); |
| if (len < 0 || static_cast<size_t>(len) >= buffer.size()) { |
| // Buffer was not large enough, calculate the required size and resize the buffer |
| len = vsnprintf(NULL, 0, fmt, vararg); |
| buffer.resize(len + 1); |
| |
| // Print again |
| vsnprintf(&buffer[0], buffer.size(), fmt, vararg); |
| } |
| |
| return std::string(buffer.data(), len); |
| } |
| |
| std::string StringPrintf(const char *fmt, ...) { |
| va_list vararg; |
| va_start(vararg, fmt); |
| std::string result = FormatString(fmt, vararg); |
| va_end(vararg); |
| return result; |
| } |
| |
| std::string NumberToString(size_t value) |
| { |
| return StringPrintf("%u", value); |
| } |
| |
| std::string NumberToString(double value) |
| { |
| return StringPrintf("%.10lf", value); |
| } |
| |
| std::string ResultsToString(const std::string& measurement, |
| const std::string& modifier, |
| const std::string& trace, |
| const std::string& values, |
| const std::string& prefix, |
| const std::string& suffix, |
| const std::string& units, |
| bool important) { |
| // <*>RESULT <graph_name>: <trace_name>= <value> <units> |
| // <*>RESULT <graph_name>: <trace_name>= {<mean>, <std deviation>} <units> |
| // <*>RESULT <graph_name>: <trace_name>= [<value>,value,value,...,] <units> |
| return StringPrintf("%sRESULT %s%s: %s= %s%s%s %s\n", important ? "*" : "", measurement.c_str(), |
| modifier.c_str(), trace.c_str(), prefix.c_str(), values.c_str(), |
| suffix.c_str(), units.c_str()); |
| } |
| |
| void PrintResultsImpl(const std::string& measurement, |
| const std::string& modifier, |
| const std::string& trace, |
| const std::string& values, |
| const std::string& prefix, |
| const std::string& suffix, |
| const std::string& units, |
| bool important) { |
| fflush(stdout); |
| printf("%s", ResultsToString(measurement, modifier, trace, values, |
| prefix, suffix, units, important).c_str()); |
| fflush(stdout); |
| } |
| |
| } // namespace |
| |
| namespace perf_test { |
| |
| void PrintResult(const std::string& measurement, |
| const std::string& modifier, |
| const std::string& trace, |
| size_t value, |
| const std::string& units, |
| bool important) { |
| PrintResultsImpl(measurement, modifier, trace, NumberToString(value), std::string(), |
| std::string(), units, important); |
| } |
| |
| void PrintResult(const std::string& measurement, |
| const std::string& modifier, |
| const std::string& trace, |
| double value, |
| const std::string& units, |
| bool important) { |
| PrintResultsImpl(measurement, modifier, trace, NumberToString(value), std::string(), |
| std::string(), units, important); |
| } |
| |
| void AppendResult(std::string& output, |
| const std::string& measurement, |
| const std::string& modifier, |
| const std::string& trace, |
| size_t value, |
| const std::string& units, |
| bool important) { |
| output += ResultsToString(measurement, modifier, trace, NumberToString(value), std::string(), |
| std::string(), units, important); |
| } |
| |
| void PrintResult(const std::string& measurement, |
| const std::string& modifier, |
| const std::string& trace, |
| const std::string& value, |
| const std::string& units, |
| bool important) { |
| PrintResultsImpl(measurement, |
| modifier, |
| trace, |
| value, |
| std::string(), |
| std::string(), |
| units, |
| important); |
| } |
| |
| void AppendResult(std::string& output, |
| const std::string& measurement, |
| const std::string& modifier, |
| const std::string& trace, |
| const std::string& value, |
| const std::string& units, |
| bool important) { |
| output += ResultsToString(measurement, |
| modifier, |
| trace, |
| value, |
| std::string(), |
| std::string(), |
| units, |
| important); |
| } |
| |
| void PrintResultMeanAndError(const std::string& measurement, |
| const std::string& modifier, |
| const std::string& trace, |
| const std::string& mean_and_error, |
| const std::string& units, |
| bool important) { |
| PrintResultsImpl(measurement, modifier, trace, mean_and_error, |
| "{", "}", units, important); |
| } |
| |
| void AppendResultMeanAndError(std::string& output, |
| const std::string& measurement, |
| const std::string& modifier, |
| const std::string& trace, |
| const std::string& mean_and_error, |
| const std::string& units, |
| bool important) { |
| output += ResultsToString(measurement, modifier, trace, mean_and_error, |
| "{", "}", units, important); |
| } |
| |
| void PrintResultList(const std::string& measurement, |
| const std::string& modifier, |
| const std::string& trace, |
| const std::string& values, |
| const std::string& units, |
| bool important) { |
| PrintResultsImpl(measurement, modifier, trace, values, |
| "[", "]", units, important); |
| } |
| |
| void AppendResultList(std::string& output, |
| const std::string& measurement, |
| const std::string& modifier, |
| const std::string& trace, |
| const std::string& values, |
| const std::string& units, |
| bool important) { |
| output += ResultsToString(measurement, modifier, trace, values, |
| "[", "]", units, important); |
| } |
| |
| void PrintSystemCommitCharge(const std::string& test_name, |
| size_t charge, |
| bool important) { |
| PrintSystemCommitCharge(stdout, test_name, charge, important); |
| } |
| |
| void PrintSystemCommitCharge(FILE* target, |
| const std::string& test_name, |
| size_t charge, |
| bool important) { |
| fprintf(target, "%s", SystemCommitChargeToString(test_name, charge, |
| important).c_str()); |
| } |
| |
| std::string SystemCommitChargeToString(const std::string& test_name, |
| size_t charge, |
| bool important) { |
| std::string trace_name(test_name); |
| std::string output; |
| AppendResult(output, |
| "commit_charge", |
| std::string(), |
| "cc" + trace_name, |
| charge, |
| "kb", |
| important); |
| return output; |
| } |
| |
| } // namespace perf_test |