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[client] metrics: expose cadence pipeline stages

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This commit is contained in:
Geoffrey McRae
2026-08-06 17:14:42 +10:00
parent 0b744d2286
commit bdfb1c3ce0
3 changed files with 41 additions and 6 deletions
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29
client/src/main.c
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@@ -221,11 +221,14 @@ struct FrameTimingRecord
unsigned readyMask;
bool producerValid;
bool phaseValid;
bool transportValid;
uint64_t captureTime;
uint64_t postProcessTime;
uint64_t copyTime;
uint64_t readyTime;
uint64_t holdTime;
uint64_t readyLeadTime;
uint64_t importTime;
uint64_t importWaitTime;
uint64_t dispatchTime;
@@ -385,6 +388,8 @@ static void frameTimingFinishFrame(LG_RendererFrameToken token,
record->postProcessTime = timing->postProcessTime;
record->copyTime = timing->copyTime;
record->readyTime = timing->readyTime;
record->holdTime = timing->holdTime;
record->readyLeadTime = timing->readyLeadTime;
if (record->timestamp < timestamp)
record->timestamp = timestamp;
record->readyMask |= FRAME_TIMING_FRAME_READY;
@@ -422,12 +427,14 @@ static void frameTimingFinishRender(const LG_RendererFrameTiming * timing,
record->swapTime = timing->swapTime;
record->readyMask |= FRAME_TIMING_RENDER_READY;
record->transportValid = record->phaseValid &&
timing->frameToken == cadenceToken;
feedbackFrameSerial = record->frameSerial;
feedbackGeneration = record->scheduleGeneration;
feedbackEpoch = record->scheduleEpoch;
feedbackDeadline = record->scheduleDeadlineSerial;
feedbackValid = record->phaseValid &&
timing->frameToken == cadenceToken;
feedbackValid = record->transportValid;
feedbackQueueStart = record->queueStart;
if (unlikely(
@@ -500,10 +507,19 @@ static void frameTimingPublishReady(void)
const uint64_t queueTime =
record->prepareStart > record->queueStart ?
record->prepareStart - record->queueStart : 0;
const uint32_t validMask =
const uint64_t transportAccounted =
record->importTime + record->dispatchTime + queueTime;
const uint64_t transportTime =
record->readyLeadTime > transportAccounted ?
record->readyLeadTime - transportAccounted : 0;
uint32_t validMask =
OVERLAY_FRAME_TIMING_VALID_ALL &
(record->producerValid ? UINT32_MAX :
~OVERLAY_FRAME_TIMING_VALID_PRODUCER);
~OVERLAY_FRAME_TIMING_VALID_PRESENT;
if (!record->producerValid)
validMask &= ~OVERLAY_FRAME_TIMING_VALID_PRODUCER;
if (!record->producerValid || !record->transportValid)
validMask &= ~OVERLAY_FRAME_TIMING_VALID_TRANSPORT;
const OverlayFrameTiming timing = {
.timestamp = record->timestamp,
.validMask = validMask,
@@ -511,6 +527,8 @@ static void frameTimingPublishReady(void)
.postProcess = record->postProcessTime * 1e-6f,
.copy = record->copyTime * 1e-6f,
.ready = record->readyTime * 1e-6f,
.hold = record->holdTime * 1e-6f,
.transport = transportTime * 1e-6f,
.import = (record->importTime +
(record->producerValid ? 0 : record->importWaitTime)) * 1e-6f,
.dispatch = record->dispatchTime * 1e-6f,
@@ -521,6 +539,7 @@ static void frameTimingPublishReady(void)
.desktop = record->desktopTime * 1e-6f,
.compose = record->composeTime * 1e-6f,
.swap = record->swapTime * 1e-6f,
.present = 0.0f,
};
ringbuffer_push(g_state.frameLatency, &timing);
}

6
client/src/overlay/graphs.c
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@@ -226,6 +226,8 @@ static const char * const frameTimingLabels[FRAME_TIMING_STAGE_COUNT] = {
"Post",
"Copy",
"Ready",
"Hold",
"Transport",
"Import",
"Dispatch",
"Queue",
@@ -235,6 +237,7 @@ static const char * const frameTimingLabels[FRAME_TIMING_STAGE_COUNT] = {
"Desktop",
"Compose",
"Swap",
"Present",
};
struct TimingPlotData
@@ -296,6 +299,8 @@ static bool accumulateFrameTimingSample(int index, void * value_, void * udata_)
timing->postProcess,
timing->copy,
timing->ready,
timing->hold,
timing->transport,
timing->import,
timing->dispatch,
timing->queue,
@@ -305,6 +310,7 @@ static bool accumulateFrameTimingSample(int index, void * value_, void * udata_)
timing->desktop,
timing->compose,
timing->swap,
timing->present,
};
const uint64_t offset = timing->timestamp - data->windowStart;

12
client/src/overlays.h
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@@ -52,6 +52,8 @@ typedef struct OverlayFrameTiming
float postProcess;
float copy;
float ready;
float hold;
float transport;
float import;
float dispatch;
float queue;
@@ -61,6 +63,7 @@ typedef struct OverlayFrameTiming
float desktop;
float compose;
float swap;
float present;
}
OverlayFrameTiming;
@@ -70,6 +73,8 @@ enum OverlayFrameTimingStage
OVERLAY_FRAME_TIMING_POST_PROCESS,
OVERLAY_FRAME_TIMING_COPY,
OVERLAY_FRAME_TIMING_READY,
OVERLAY_FRAME_TIMING_HOLD,
OVERLAY_FRAME_TIMING_TRANSPORT,
OVERLAY_FRAME_TIMING_IMPORT,
OVERLAY_FRAME_TIMING_DISPATCH,
OVERLAY_FRAME_TIMING_QUEUE,
@@ -79,13 +84,18 @@ enum OverlayFrameTimingStage
OVERLAY_FRAME_TIMING_DESKTOP,
OVERLAY_FRAME_TIMING_COMPOSE,
OVERLAY_FRAME_TIMING_SWAP,
OVERLAY_FRAME_TIMING_PRESENT,
OVERLAY_FRAME_TIMING_COUNT,
};
#define OVERLAY_FRAME_TIMING_VALID_ALL \
((1U << OVERLAY_FRAME_TIMING_COUNT) - 1U)
#define OVERLAY_FRAME_TIMING_VALID_PRODUCER \
((1U << OVERLAY_FRAME_TIMING_IMPORT) - 1U)
((1U << OVERLAY_FRAME_TIMING_TRANSPORT) - 1U)
#define OVERLAY_FRAME_TIMING_VALID_TRANSPORT \
(1U << OVERLAY_FRAME_TIMING_TRANSPORT)
#define OVERLAY_FRAME_TIMING_VALID_PRESENT \
(1U << OVERLAY_FRAME_TIMING_PRESENT)
GraphHandle overlayGraph_register(const char * name, RingBuffer buffer,
float min, float max, GraphFormatFn formatFn);