Clean up rejit queue (#2751)

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FICTURE7 2022-09-09 03:14:08 +04:00 committed by GitHub
parent 7baa08dcb4
commit ee1825219b
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5 changed files with 225 additions and 119 deletions

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@ -44,15 +44,11 @@ namespace ARMeilleure.Translation
private readonly IJitMemoryAllocator _allocator;
private readonly ConcurrentQueue<KeyValuePair<ulong, TranslatedFunction>> _oldFuncs;
private readonly ConcurrentDictionary<ulong, object> _backgroundSet;
private readonly ConcurrentStack<RejitRequest> _backgroundStack;
private readonly AutoResetEvent _backgroundTranslatorEvent;
private readonly ReaderWriterLock _backgroundTranslatorLock;
internal TranslatorCache<TranslatedFunction> Functions { get; }
internal AddressTable<ulong> FunctionTable { get; }
internal EntryTable<uint> CountTable { get; }
internal TranslatorStubs Stubs { get; }
internal TranslatorQueue Queue { get; }
internal IMemoryManager Memory { get; }
private volatile int _threadCount;
@ -67,10 +63,7 @@ namespace ARMeilleure.Translation
_oldFuncs = new ConcurrentQueue<KeyValuePair<ulong, TranslatedFunction>>();
_backgroundSet = new ConcurrentDictionary<ulong, object>();
_backgroundStack = new ConcurrentStack<RejitRequest>();
_backgroundTranslatorEvent = new AutoResetEvent(false);
_backgroundTranslatorLock = new ReaderWriterLock();
Queue = new TranslatorQueue();
JitCache.Initialize(allocator);
@ -87,43 +80,6 @@ namespace ARMeilleure.Translation
}
}
private void TranslateStackedSubs()
{
while (_threadCount != 0)
{
_backgroundTranslatorLock.AcquireReaderLock(Timeout.Infinite);
if (_backgroundStack.TryPop(out RejitRequest request) &&
_backgroundSet.TryRemove(request.Address, out _))
{
TranslatedFunction func = Translate(request.Address, request.Mode, highCq: true);
Functions.AddOrUpdate(request.Address, func.GuestSize, func, (key, oldFunc) =>
{
EnqueueForDeletion(key, oldFunc);
return func;
});
if (PtcProfiler.Enabled)
{
PtcProfiler.UpdateEntry(request.Address, request.Mode, highCq: true);
}
RegisterFunction(request.Address, func);
_backgroundTranslatorLock.ReleaseReaderLock();
}
else
{
_backgroundTranslatorLock.ReleaseReaderLock();
_backgroundTranslatorEvent.WaitOne();
}
}
// Wake up any other background translator threads, to encourage them to exit.
_backgroundTranslatorEvent.Set();
}
public void Execute(State.ExecutionContext context, ulong address)
{
if (Interlocked.Increment(ref _threadCount) == 1)
@ -155,7 +111,7 @@ namespace ARMeilleure.Translation
{
bool last = i != 0 && i == unboundedThreadCount - 1;
Thread backgroundTranslatorThread = new Thread(TranslateStackedSubs)
Thread backgroundTranslatorThread = new Thread(BackgroundTranslate)
{
Name = "CPU.BackgroundTranslatorThread." + i,
Priority = last ? ThreadPriority.Lowest : ThreadPriority.Normal
@ -186,10 +142,9 @@ namespace ARMeilleure.Translation
if (Interlocked.Decrement(ref _threadCount) == 0)
{
_backgroundTranslatorEvent.Set();
ClearJitCache();
Queue.Dispose();
Stubs.Dispose();
FunctionTable.Dispose();
CountTable.Dispose();
@ -317,6 +272,27 @@ namespace ARMeilleure.Translation
return new TranslatedFunction(func, counter, funcSize, highCq);
}
private void BackgroundTranslate()
{
while (_threadCount != 0 && Queue.TryDequeue(out RejitRequest request))
{
TranslatedFunction func = Translate(request.Address, request.Mode, highCq: true);
Functions.AddOrUpdate(request.Address, func.GuestSize, func, (key, oldFunc) =>
{
EnqueueForDeletion(key, oldFunc);
return func;
});
if (PtcProfiler.Enabled)
{
PtcProfiler.UpdateEntry(request.Address, request.Mode, highCq: true);
}
RegisterFunction(request.Address, func);
}
}
private struct Range
{
public ulong Start { get; }
@ -504,11 +480,7 @@ namespace ARMeilleure.Translation
internal void EnqueueForRejit(ulong guestAddress, ExecutionMode mode)
{
if (_backgroundSet.TryAdd(guestAddress, null))
{
_backgroundStack.Push(new RejitRequest(guestAddress, mode));
_backgroundTranslatorEvent.Set();
}
Queue.Enqueue(guestAddress, mode);
}
private void EnqueueForDeletion(ulong guestAddress, TranslatedFunction func)
@ -542,26 +514,23 @@ namespace ARMeilleure.Translation
private void ClearRejitQueue(bool allowRequeue)
{
_backgroundTranslatorLock.AcquireWriterLock(Timeout.Infinite);
if (allowRequeue)
if (!allowRequeue)
{
while (_backgroundStack.TryPop(out var request))
Queue.Clear();
return;
}
lock (Queue.Sync)
{
while (Queue.Count > 0 && Queue.TryDequeue(out RejitRequest request))
{
if (Functions.TryGetValue(request.Address, out var func) && func.CallCounter != null)
{
Volatile.Write(ref func.CallCounter.Value, 0);
}
_backgroundSet.TryRemove(request.Address, out _);
}
}
else
{
_backgroundStack.Clear();
}
_backgroundTranslatorLock.ReleaseWriterLock();
}
}
}