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Code Issues Releases Wiki Activity

collecting/resolving timestamps in pairs

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This commit is contained in:
Marcos Slomp 2024-02-08 15:14:14 -08:00
parent 6d04913b4a
commit c6cc424991
1 changed files with 37 additions and 11 deletions
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48
public/tracy/TracyMetal.hmm
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@ -210,6 +210,7 @@ public:
if (count >= MaxQueries) if (count >= MaxQueries)
{ {
fprintf(stdout, "TracyMetal: Collect: FULL [%llu, %llu] (%d)\n", begin, latestCheckpoint, count);
TracyMetalPanic("Collect: too many pending timestamp queries.", return false;); TracyMetalPanic("Collect: too many pending timestamp queries.", return false;);
} }
@ -222,29 +223,54 @@ public:
TracyMetalPanic("Collect: unable to resolve timestamps.", return false;); TracyMetalPanic("Collect: unable to resolve timestamps.", return false;);
} }
for (auto i = 0; i < numResolvedTimestamps; ++i) if (numResolvedTimestamps != count)
{ {
MTLTimestamp& timestamp = timestamps[i].timestamp; fprintf(stdout, "TracyMetal: Collect: numResolvedTimestamps != count : %d != %d\n", numResolvedTimestamps, count);
if (timestamp == MTLCounterErrorValue) }
for (auto i = 0; i < numResolvedTimestamps; i += 2)
{
static MTLTimestamp lastValidTimestamp = 0;
MTLTimestamp& t_start = timestamps[i+0].timestamp;
MTLTimestamp& t_end = timestamps[i+1].timestamp;
uint32_t k = RingIndex(begin + i);
fprintf(stdout, "TracyMetal: Collect: timestamp[%d] = %llu | timestamp[%d] = %llu | diff = %llu\n", k, t_start, k+1, t_end, (t_end - t_start));
if (t_start == MTLCounterErrorValue)
{ {
TracyMetalPanic("Collect: invalid timestamp: MTLCounterErrorValue (0xFF..FF)."); TracyMetalPanic("Collect: invalid timestamp: MTLCounterErrorValue (0xFF..FF).");
break; break;
} }
if (timestamp == 0) // zero is apparently also considered "invalid"... if (t_start == 0) // zero is apparently also considered "invalid"...
{ {
TracyMetalPanic("Collect: invalid timestamp: zero."); static int HACK_retries = 0;
break; if (++HACK_retries > 8) {
fprintf(stdout, "TracyMetal: Collect: giving up...\n", k, t_start, k+1, t_end);
t_start = t_end = lastValidTimestamp + 10;
HACK_retries = 0;
} else {
TracyMetalPanic("Collect: invalid timestamp: zero.");
break;
}
} }
m_previousCheckpoint += 1; m_previousCheckpoint += 2;
uint32_t k = RingIndex(begin + i); {
fprintf(stdout, "TracyMetal: timestamp[%d]: %llu\n", k, timestamp);
auto* item = Profiler::QueueSerial(); auto* item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuTime); MemWrite(&item->hdr.type, QueueType::GpuTime);
MemWrite(&item->gpuTime.gpuTime, static_cast<int64_t>(timestamp)); MemWrite(&item->gpuTime.gpuTime, static_cast<int64_t>(t_start));
MemWrite(&item->gpuTime.queryId, static_cast<uint16_t>(k)); MemWrite(&item->gpuTime.queryId, static_cast<uint16_t>(k));
MemWrite(&item->gpuTime.context, m_contextId); MemWrite(&item->gpuTime.context, m_contextId);
Profiler::QueueSerialFinish(); Profiler::QueueSerialFinish();
timestamp = MTLCounterErrorValue; // "reset" timestamp }
{
auto* item = Profiler::QueueSerial();
MemWrite(&item->hdr.type, QueueType::GpuTime);
MemWrite(&item->gpuTime.gpuTime, static_cast<int64_t>(t_end));
MemWrite(&item->gpuTime.queryId, static_cast<uint16_t>(k+1));
MemWrite(&item->gpuTime.context, m_contextId);
Profiler::QueueSerialFinish();
}
lastValidTimestamp = t_end;
t_start = t_end = MTLCounterErrorValue; // "reset" timestamps
} }
//RecalibrateClocks(); // to account for drift //RecalibrateClocks(); // to account for drift