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[client/host/idd] correct frame timing attribution

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Use calibrated copy-queue timestamps to separate source and effect
waits from the actual framebuffer copy.

Exclude producer readiness waits from client import timing so the
same interval is not counted in both Copy and Import.
This commit is contained in:
Geoffrey McRae
2026-08-03 15:58:41 +10:00
parent c8e4b97c3c
commit aa289fa022
17 changed files with 630 additions and 92 deletions
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13
client/renderers/EGL/egl.c
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@@ -748,14 +748,21 @@ static bool egl_onFrame(LG_Renderer * renderer, const FrameBuffer * frame, int d
struct Inst * this = UPCAST(struct Inst, renderer);
egl_stateCheckShared();
const uint64_t start = nanotime();
const uint64_t start = nanotime();
uint64_t waitTimeNs = 0;
if (unlikely(!egl_desktopUpdate(
this->desktop, frame, dmaFd, damageRects, damageRectsCount)))
this->desktop, frame, dmaFd, damageRects, damageRectsCount,
&waitTimeNs)))
{
DEBUG_INFO("Failed to to update the desktop");
return false;
}
app_setFrameImportTime(nanotime() - start);
const uint64_t elapsed = nanotime() - start;
/* Producer Copy already covers the interval before FrameBuffer::wp becomes
* ready. Exclude that overlapping wait from the client Import stage. */
app_setFrameImportTime(
elapsed > waitTimeNs ? elapsed - waitTimeNs : 0);
INTERLOCKED_SECTION(this->desktopDamageLock, {
struct DesktopDamage * damage = this->desktopDamage + this->desktopDamageIdx;