func (opt *Option) ArgInt64Var(val *int64) error
The problem compounds in pipelines. Each TransformStream adds another layer of promise machinery between source and sink. The spec doesn't define synchronous fast paths, so even when data is available immediately, the promise machinery still runs.
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Tiny chunks (100B × 10000)
if (hdr.tag_bloom_hi != actual_bloom_filter 32 || hdr.tag_bloom_lo != (actual_bloom_filter & 0xffffffff))
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