namespace util { | |
// Time in seconds since process started. Zero on unsupported platforms. | |
double WallTime(); | |
void PrintUsage(std::ostream &to); | |
// Determine how much physical memory there is. Return 0 on failure. | |
uint64_t GuessPhysicalMemory(); | |
// Parse a size like unix sort. Sadly, this means the default multiplier is K. | |
uint64_t ParseSize(const std::string &arg); | |
} // namespace util | |