private static void WriteMemoryStatus(TextWriter writer)
{
try
{
GlobalMemoryStatus memoryStatus = new GlobalMemoryStatus();
writer.WriteLine(string.Format(CultureInfo.InvariantCulture, "Memory Load: {0}%", memoryStatus.MemoryLoad));
writer.WriteLine(string.Format(CultureInfo.InvariantCulture, "Total Physical: {0} MB", (memoryStatus.TotalPhysical / 1048576)));
writer.WriteLine(string.Format(CultureInfo.InvariantCulture, "Available Physical: {0} MB", (memoryStatus.AvailablePhysical / 1048576)));
writer.WriteLine(string.Format(CultureInfo.InvariantCulture, "Total Page File: {0} MB", (memoryStatus.TotalPageFile / 1048576)));
writer.WriteLine(string.Format(CultureInfo.InvariantCulture, "Available Page File: {0} MB", (memoryStatus.AvailablePageFile / 1048576)));
writer.WriteLine(string.Format(CultureInfo.InvariantCulture, "Total Virtual: {0} MB", (memoryStatus.TotalVirtual / 1048576)));
writer.WriteLine(string.Format(CultureInfo.InvariantCulture, "Available Virtual: {0} MB", (memoryStatus.AvailableVirtual / 1048576)));
writer.WriteLine(string.Format(CultureInfo.InvariantCulture, "Available Extented Virtual: {0} MB", (memoryStatus.AvailableExtendedVirtual / 1048576)));
}
catch (Exception ex)
{
Debug.Write("Unexpected exception attempting to get global memory status: " + ex.ToString());
}
}
public IEnumerable <MetricSample> GetSamples()
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
var(success, totalMemory, freeMemory) = GlobalMemoryStatus.GetTotalPhysAndAvailPhys();
if (!success || totalMemory == 0 || freeMemory == 0)
{
return(null);
}
return(new List <MetricSample>(2)
{
new MetricSample(FreeMemory, freeMemory), new MetricSample(TotalMemory, totalMemory)
});
}
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
var retVal = new List <MetricSample>();
using (var sr = new StreamReader("/proc/meminfo"))
{
var hasMemFree = false;
var hasMemTotal = false;
var line = sr.ReadLine();
while (line != null || retVal.Count != 2)
{
//See: https://github.com/elastic/beats/issues/4202
if (line != null && line.Contains("MemAvailable:"))
{
var(suc, res) = GetEntry(line, "MemAvailable:");
if (suc)
{
retVal.Add(new MetricSample(FreeMemory, res));
}
hasMemFree = true;
}
if (line != null && line.Contains("MemTotal:"))
{
var(suc, res) = GetEntry(line, "MemTotal:");
if (suc)
{
retVal.Add(new MetricSample(TotalMemory, res));
}
hasMemTotal = true;
}
if (hasMemFree && hasMemTotal)
{
break;
}
line = sr.ReadLine();
}
}
ConsecutiveNumberOfFailedReads = 0;
return(retVal);
}
(bool, ulong) GetEntry(string line, string name)
{
var nameIndex = line.IndexOf(name, StringComparison.Ordinal);
if (nameIndex < 0)
{
return(false, 0);
}
var values = line.Substring(line.IndexOf(name, StringComparison.Ordinal) + name.Length);
if (string.IsNullOrWhiteSpace(values))
{
return(false, 0);
}
var items = values.Trim().Split(' ');
switch (items.Length)
{
case 1 when ulong.TryParse(items[0], out var res): return(true, res);
case 2 when items[1].ToLowerInvariant() == "kb" && ulong.TryParse(items[0], out var res): return(true, res * 1024);