Buffer ByteArrayOutputStream in serialization#2724
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ChristianGruen merged 1 commit intoJul 15, 2026
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GuntherRademacher
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ByteArrayOutputStream serializationByteArrayOutputStream in serialization
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PrintOutput.get()left ajava.io.ByteArrayOutputStreamunbuffered, so every serialized codepoint went through a synchronized single-byte write +ensureCapacity. In a benchmark this caused about 28% of the total runtime.It is now wrapped in
BufferOutputlike any other stream.OutputSerializer.close()flushes, and internally the serializer is fedArrayOutput, not a JDKByteArrayOutputStream- only external BAOS sinks are affected.