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gh-138122: Add thread status statistics to flamegraph profiler #141900

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Merged
pablogsal merged 4 commits into from
Nov 30, 2025
Merged

gh-138122: Add thread status statistics to flamegraph profiler #141900

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9694d5a
gh-138122: Track and display thread status statistics in flamegraph p…
pablogsal Nov 24, 2025
b928596
fixup! gh-138122: Track and display thread status statistics in flame…
pablogsal Nov 28, 2025
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pablogsal Nov 30, 2025
b70a62b
fixup! Apply suggestions from code review
pablogsal Nov 30, 2025
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Co-authored-by: ivonastojanovic <[email protected]>
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@pablogsal @ivonastojanovic
pablogsal and ivonastojanovic authored Nov 30, 2025
commit 0873918b44e24264d442aab61818e0fcf0f54434
8 changes: 4 additions & 4 deletions Lib/profiling/sampling/flamegraph.js
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Expand Up @@ -462,23 +462,23 @@ function populateThreadStats(data, selectedThreadId = null) {
// GIL Held
const gilHeldPct = threadStats.has_gil_pct || 0;
const gilHeldPctElem = document.getElementById('gil-held-pct');
if (gilHeldPctElem) gilHeldPctElem.textContent = `${gilHeldPct.toFixed(1)}%`;
if (gilHeldPctElem) gilHeldPctElem.textContent = `${gilHeldPct.toFixed(2)}%`;

// GIL Released (threads running without GIL)
const gilReleasedPct = threadStats.on_cpu_pct || 0;
const gilReleasedPctElem = document.getElementById('gil-released-pct');
if (gilReleasedPctElem) gilReleasedPctElem.textContent = `${gilReleasedPct.toFixed(1)}%`;
if (gilReleasedPctElem) gilReleasedPctElem.textContent = `${gilReleasedPct.toFixed(2)}%`;

// Waiting for GIL
const gilWaitingPct = threadStats.gil_requested_pct || 0;
const gilWaitingPctElem = document.getElementById('gil-waiting-pct');
if (gilWaitingPctElem) gilWaitingPctElem.textContent = `${gilWaitingPct.toFixed(1)}%`;
if (gilWaitingPctElem) gilWaitingPctElem.textContent = `${gilWaitingPct.toFixed(2)}%`;
}

// Garbage Collection (always show)
const gcPct = threadStats.gc_pct || 0;
const gcPctElem = document.getElementById('gc-pct');
if (gcPctElem) gcPctElem.textContent = `${gcPct.toFixed(1)}%`;
if (gcPctElem) gcPctElem.textContent = `${gcPct.toFixed(2)}%`;
}
}

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