// import module
import resusage.memory;

// or the whole package
import resusage;

// get system memory usage
SystemMemInfo sysMemInfo = systemMemInfo(); 

// access properties
sysMemInfo.totalRAM;
sysMemInfo.usedRAM;
sysMemInfo.freeRAM;

sysMemInfo.totalVirtMem;
sysMemInfo.usedVirtMem;
sysMemInfo.freeVirtMem;

// actualize values after some amount of time
sysMemInfo.update();

// get memory usage of the current process
ProcessMemInfo procMemInfo = processMemInfo();

// or pass process ID to get info about specific process
int pid = ...;
ProcessMemInfo procMemInfo = processMemInfo(pid);

// access properties
procMemInfo.usedVirtMem;
procMemInfo.usedRAM;

// actualize values after some amount of time
procMemInfo.update();

//import module
import resusage.cpu;

// create watcher to watch system CPU
auto cpuWatcher = new SystemCPUWatcher();

// get actual value when needed
double percent = cpuWatcher.current();

// create CPU watcher for current process
auto cpuWatcher = new ProcessCPUWatcher();

// or for process with given id
int pid = ...;
auto cpuWatcher = new ProcessCPUWatcher(pid);

// get actual value when needed
double percent = cpuWatcher.current();