Method delta

src/openms/source/SYSTEM/SysInfo.cpp:190–203

  }

  String SysInfo::MemUsage::delta(const String& event)
  {
    if (mem_after == 0)
    {
      after(); // collect data if missing; do not test using mem_after_peak, since it might be unsupported on the platform
    }
    String s = String("Memory usage (") + event + "): ";
    s += diff_str_(mem_before, mem_after) + " (working set delta)";
    if (mem_after_peak > 0)
    { // only if supported
      s+= ", " + diff_str_(mem_before_peak, mem_after_peak) + " (peak working set delta)";
    }
    return s;
  }

  String SysInfo::MemUsage::usage()
  {