benchmark: respect stream/iter broadcast backpressure#63314
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Only decrement the remaining byte count after a stream/iter broadcast write is accepted. If writeSync() is blocked by strict backpressure, fall back to the async write() path for the same chunk. Signed-off-by: Kamat, Trivikram <[email protected]> Assisted-by: openai:gpt-5.5
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This updates the
stream/iterbroadcast throughput benchmark to respectbackpressure from
writer.writeSync().Previously, the benchmark decremented
remainingbefore checking whetherwriteSync()accepted the chunk. Under default strict backpressure, rejectedwrites could still be counted toward the benchmarked byte total. The iter path
now falls back to
await writer.write(buf)for the same chunk and only counts itafter the write is accepted.
Assisted-by: openai:gpt-5.5