public AllocationTickMemoryProfiler(TraceEventSession session, int pid, ProcessAllocationInfo allocations, bool verbose = false)
{
if (session == null)
{
throw new NullReferenceException(nameof(session));
}
_session = session;
if (allocations == null)
{
throw new NullReferenceException(nameof(allocations));
}
_allocations = allocations;
_pid = pid;
_verbose = verbose;
_symbolLookupMessages = new StringWriter();
// By default a symbol Reader uses whatever is in the _NT_SYMBOL_PATH variable. However you can override
// if you wish by passing it to the SymbolReader constructor. Since we want this to work even if you
// have not set an _NT_SYMBOL_PATH, so we add the Microsoft default symbol server path to be sure/
var symbolPath = new SymbolPath(SymbolPath.SymbolPathFromEnvironment).Add(SymbolPath.MicrosoftSymbolServerPath);
_symbolReader = new SymbolReader(_symbolLookupMessages, symbolPath.ToString());
// By default the symbol reader will NOT read PDBs from 'unsafe' locations (like next to the EXE)
// because hackers might make malicious PDBs. If you wish ignore this threat, you can override this
// check to always return 'true' for checking that a PDB is 'safe'.
_symbolReader.SecurityCheck = (path => true);
}
static async Task <int> Main(string[] args)
{
ShowHeader();
(int pid, bool verbose)parameters;
try
{
parameters = GetParameters(args);
}
catch (InvalidOperationException x)
{
Console.WriteLine(x.Message);
ShowHelp();
return(-1);
}
if (parameters.verbose)
{
Console.WriteLine($"Current pid = {Process.GetCurrentProcess().Id}");
Console.WriteLine($"Profiling process #{parameters.pid}...");
Console.WriteLine();
}
var allocations = new ProcessAllocationInfo(parameters.pid);
TraceEventSession session = new TraceEventSession(
"AllocationTickMemoryProfilingSession",
TraceEventSessionOptions.Create
);
var profiler = new AllocationTickMemoryProfiler(session, parameters.pid, allocations, parameters.verbose);
var task = profiler.StartAsync();
Console.WriteLine("Press ENTER to stop memory profiling");
Console.WriteLine();
Console.ReadLine();
// this will exit the session.Process() call
session.Dispose();
try
{
await task;
ShowResults(allocations);
Console.WriteLine("Press ENTER to exit...");
Console.WriteLine();
Console.ReadLine();
return(0);
}
catch (Exception x)
{
Console.WriteLine(x.Message);
ShowHelp();
}
return(-666);
}
private static void ShowResults(ProcessAllocationInfo allocations)
{
Console.WriteLine(" Small Large LOH Type");
Console.WriteLine("---------------------------------------------------------");
foreach (var allocation in allocations.GetAllocations().OrderByDescending(a => a.Count))
{
var smallCount = (allocation.SmallCount == 0) ? " " : $"{allocation.SmallCount,7}";
var largeCount = (allocation.LargeCount == 0) ? " " : $"{allocation.LargeCount,7}";
var largeSize = (allocation.LargeSize == 0) ? " " : $"{allocation.LargeSize,10}";
Console.WriteLine($"{smallCount} {largeCount} {largeSize} {allocation.TypeName}");
}
}
public AllocationTickMemoryProfiler(TraceEventSession session, int pid, ProcessAllocationInfo allocations, bool verbose = false)
{
if (session == null)
{
throw new NullReferenceException(nameof(session));
}
_session = session;
if (allocations == null)
{
throw new NullReferenceException(nameof(allocations));
}
_allocations = allocations;
_pid = pid;
_verbose = verbose;
}