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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/jit-test/tests/debug/Memory-takeCensus-10.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/debug/Memory-takeCensus-10.js')
-rw-r--r-- | js/src/jit-test/tests/debug/Memory-takeCensus-10.js | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Memory-takeCensus-10.js b/js/src/jit-test/tests/debug/Memory-takeCensus-10.js new file mode 100644 index 0000000000..9a03009fee --- /dev/null +++ b/js/src/jit-test/tests/debug/Memory-takeCensus-10.js @@ -0,0 +1,60 @@ +// Check counts produced by takeCensus. +// +// Note that tracking allocation sites adds unique IDs to objects which +// increases their size, making it hard to test reported sizes exactly. + +let g = newGlobal({newCompartment: true}); +let dbg = new Debugger(g); + +let sizeOfAM = byteSize(allocationMarker()); + +// Allocate a single allocation marker, and check that we can find it. +g.eval('var hold = allocationMarker();'); +let census = dbg.memory.takeCensus({ breakdown: { by: 'objectClass' } }); +assertEq(census.AllocationMarker.count, 1); +assertEq(census.AllocationMarker.bytes, sizeOfAM); + +g.evaluate(` + var objs = []; + function fnerd() { + objs.push(allocationMarker()); + for (let i = 0; i < 10; i++) + objs.push(allocationMarker()); + } + `, + { fileName: 'J. Edgar Hoover', lineNumber: 2000 }); + +dbg.memory.allocationSamplingProbability = 1; +dbg.memory.trackingAllocationSites = true; + +g.hold = null; +g.fnerd(); + +census = dbg.memory.takeCensus({ + breakdown: { by: 'objectClass', + then: { by: 'allocationStack' } + } +}); + +let seen = 0; +census.AllocationMarker.forEach((v, k) => { + assertEq(k.functionDisplayName, 'fnerd'); + assertEq(k.source, 'J. Edgar Hoover'); + switch (k.line) { + case 2003: + assertEq(v.count, 1); + assertEq(v.bytes >= sizeOfAM, true); + seen++; + break; + + case 2005: + assertEq(v.count, 10); + assertEq(v.bytes >= 10 * sizeOfAM, true); + seen++; + break; + + default: assertEq(true, false); + } +}); + +assertEq(seen, 2); |