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Fix heap snapshots memory usage stats. Introduce estimateDirectMemoryUsageOf function in "bun:jsc" (#15790)

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This commit is contained in:
Jarred Sumner
2024-12-16 20:16:23 -08:00
committed by GitHub
parent 3906d02e2c
commit aada6f930f
55 changed files with 1093 additions and 99 deletions
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20
src/bun.js/bindings/CommonJSModuleRecord.cpp
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@@ -727,6 +727,19 @@ JSCommonJSModule* JSCommonJSModule::create(
return JSCommonJSModule::create(globalObject, requireMapKey, exportsObject, hasEvaluated, parent);
}
size_t JSCommonJSModule::estimatedSize(JSC::JSCell* cell, JSC::VM& vm)
{
auto* thisObject = jsCast<JSCommonJSModule*>(cell);
size_t additionalSize = 0;
if (!thisObject->sourceCode.isNull() && !thisObject->sourceCode.view().isEmpty()) {
additionalSize += thisObject->sourceCode.view().length();
if (!thisObject->sourceCode.view().is8Bit()) {
additionalSize *= 2;
}
}
return Base::estimatedSize(cell, vm) + additionalSize;
}
void JSCommonJSModule::destroy(JSC::JSCell* cell)
{
static_cast<JSCommonJSModule*>(cell)->JSCommonJSModule::~JSCommonJSModule();
@@ -999,9 +1012,14 @@ void JSCommonJSModule::analyzeHeap(JSCell* cell, HeapAnalyzer& analyzer)
if (auto* id = thisObject->m_id.get()) {
if (!id->isRope()) {
auto label = id->tryGetValue(false);
analyzer.setLabelForCell(cell, label);
analyzer.setLabelForCell(cell, makeString("CommonJS Module: "_s, StringView(label)));
} else {
analyzer.setLabelForCell(cell, "CommonJS Module"_s);
}
} else {
analyzer.setLabelForCell(cell, "CommonJS Module"_s);
}
Base::analyzeHeap(cell, analyzer);
}