The e2e check that a streamed sound costs less than a decoded one compared how much the renderer process grew. Alone, module 34 saw it grow by 1 to 8 MB while streaming. After the 33 modules before it in CI it grew by 25 to 66 MB, and suite went red (CI tasks 611, 614 and 617, the last with 66.7 MB streamed against 95.9 MB decoded). - SoundLibrary.stats tells decodedBytes, the samples of every file decoded whole, and streaming.held, every head of a copy and what is sent ahead to the worklet. - StreamFile.headBytes and StreamFeed.ahead give their share. - The e2e check now asks the library: streamed it holds less than 4 MB more than before and nothing decoded whole, decoded it holds more than 40 MB, the five minutes being 50 MB at 44.1 kHz. - The growth of the renderer stays in the log of that check. The counter-proof that the renderer grows by more than 40 MB when the sound is decoded stays as it was. Tests: - Unit sound-library: the streaming test also checks the bytes held. - e2e 34 (melektaus-atx): 136 checks. Streamed 0.76 MB more held and none decoded whole, decoded 50.5 MB. The renderer grew by 4 MB and 49 MB. - Gate (melektaus-atx): 288 files, 4416 tests. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>