internal override void Process(ProfilerSession sess)
{
Tracing.PacketTrace("<<< GARBAGE COLLECTION BEGIN");
sess.HeapBytesFree = m_freeBytes;
GarbageCollectionEnd gc = new GarbageCollectionEnd();
gc.liveObjects = new List<uint>(sess.m_liveObjectTable);
sess.AddEvent(gc);
}
internal void ProcessEvent(_PRF.ProfilerSession ps, _PRF.ProfilerEvent pe)
{
ulong callstack;
if (m_processedFirstEvent == false)
{
m_processedFirstEvent = true;
m_startTime = pe.Time;
m_lastWrittenTime = pe.Time;
}
else
{
if (pe.Time >= m_lastWrittenTime + 1)
{ // Mimic the 5-ms granularity of the CLRProfiler.
m_sw.WriteLine("i {0}", pe.Time - m_startTime);
m_lastWrittenTime = pe.Time;
}
}
switch (pe.Type)
{
case _PRF.ProfilerEvent.EventType.HeapDump:
{
_PRF.HeapDump hd = (_PRF.HeapDump)pe;
foreach (_PRF.HeapDumpRoot hdr in hd.RootTable)
{
uint md = 0;
if (hdr.m_type == HeapDumpRoot.RootType.Stack)
{
/* This needs to come first because it has the side effect of writing a
* method definition out if one doesn't exist for it yet.
*/
md = FindMethod(ps, hdr.m_method);
}
m_sw.Write("e 0x{0:x8} ", hdr.m_address);
switch (hdr.m_type)
{
case HeapDumpRoot.RootType.Finalizer:
m_sw.Write("2 ");
break;
case HeapDumpRoot.RootType.Stack:
m_sw.Write("1 ");
break;
default:
m_sw.Write("0 ");
break;
}
switch (hdr.m_flags)
{
case HeapDumpRoot.RootFlags.Pinned:
m_sw.Write("1 ");
break;
default:
m_sw.Write("0 ");
break;
}
switch (hdr.m_type)
{
case HeapDumpRoot.RootType.Stack:
m_sw.WriteLine("{0}", md);
break;
default:
m_sw.WriteLine("0");
break;
}
}
foreach (_PRF.HeapDumpObject hdo in hd.ObjectTable)
{
ulong typeid = FindType(ps, hdo.m_type);
m_sw.Write("o 0x{0:x8} {1} {2}", hdo.m_address, typeid, hdo.m_size);
if (hdo.m_references != null)
{
foreach (uint ptr in hdo.m_references)
{
m_sw.Write(" 0x{0:x8}", ptr);
}
}
m_sw.WriteLine();
}
break;
}
case _PRF.ProfilerEvent.EventType.Call:
{
_PRF.FunctionCall f = (_PRF.FunctionCall)pe;
callstack = MakeCallStack(ps, f.m_callStack);
m_sw.WriteLine("c {0} {1}", f.m_thread, callstack);
break;
}
case _PRF.ProfilerEvent.EventType.Return:
case _PRF.ProfilerEvent.EventType.ContextSwitch:
//The CLRProfiler does not care about function timing; it's primary goal is to display memory usage over time, and barely considers function calls
break;
case _PRF.ProfilerEvent.EventType.Allocation:
{
_PRF.ObjectAllocation a = (_PRF.ObjectAllocation)pe;
callstack = MakeCallStack(ps, a.m_callStack, a.m_objectType, a.m_size);
m_sw.WriteLine("! {0} 0x{1:x} {2}", a.m_thread, a.m_address, callstack);
break;
}
case _PRF.ProfilerEvent.EventType.Relocation:
{
_PRF.ObjectRelocation r = (_PRF.ObjectRelocation)pe;
for (uint i = 0; i < r.m_relocationRegions.Length; i++)
{
m_sw.WriteLine("u 0x{0:x} 0x{1:x} {2}", r.m_relocationRegions[i].m_start,
r.m_relocationRegions[i].m_start + r.m_relocationRegions[i].m_offset,
r.m_relocationRegions[i].m_end - r.m_relocationRegions[i].m_start);
}
break;
}
case _PRF.ProfilerEvent.EventType.Deallocation:
{
_PRF.ObjectDeletion d = (_PRF.ObjectDeletion)pe;
break;
}
case _PRF.ProfilerEvent.EventType.GarbageCollectionBegin:
{
_PRF.GarbageCollectionBegin gc = (_PRF.GarbageCollectionBegin)pe;
uint lastObjAddress = ps.m_liveObjectTable[ps.m_liveObjectTable.Count - 1] + 1;
m_sw.WriteLine("b 1 0 0 0x{0:x} {1} {2} 0", ps.HeapStart, lastObjAddress, ps.HeapBytesReserved);
break;
}
case _PRF.ProfilerEvent.EventType.GarbageCollectionEnd:
{
_PRF.GarbageCollectionEnd gc = (_PRF.GarbageCollectionEnd)pe;
for (int i = 0; i < gc.liveObjects.Count; i++)
{
//Send length of 1 for single object, regardless of true object length.
m_sw.WriteLine("v 0x{0:x} 1", gc.liveObjects[i]);
}
uint lastObjAddress = ps.m_liveObjectTable[ps.m_liveObjectTable.Count - 1] + 1;
m_sw.WriteLine("b 0 0 0 0x{0:x} {1} {2} 0", ps.HeapStart, lastObjAddress, ps.HeapBytesReserved);
break;
}
case _PRF.ProfilerEvent.EventType.HeapCompactionBegin:
{
_PRF.HeapCompactionBegin gc = (_PRF.HeapCompactionBegin)pe;
uint lastObjAddress = ps.m_liveObjectTable[ps.m_liveObjectTable.Count - 1] + 1;
m_sw.WriteLine("b 1 0 0 0x{0:x} {1} {2} 0", ps.HeapStart, lastObjAddress, ps.HeapBytesReserved);
break;
}
case _PRF.ProfilerEvent.EventType.HeapCompactionEnd:
{
_PRF.HeapCompactionEnd gc = (_PRF.HeapCompactionEnd)pe;
uint lastObjAddress = ps.m_liveObjectTable[ps.m_liveObjectTable.Count - 1] + 1;
m_sw.WriteLine("b 0 0 0 0x{0:x} {1} {2} 0", ps.HeapStart, lastObjAddress, ps.HeapBytesReserved);
break;
}
}
m_sw.Flush();
}