383ea0326ae103b5d5e0b62ed9c3cb18510c5b9e,distributed/comm/tcp.py,TCP,write,#TCP#Any#Any#Any#,229

Before Change

        try:
            nframes = len(frames)
            lengths = [nbytes(frame) for frame in frames]
            length_bytes = struct.pack(f"Q{nframes}Q", nframes, *lengths)

            frames = [length_bytes, *frames]

After Change

        )
        frames_nbytes = sum(map(nbytes, frames))

        header = pack_frames_prelude(frames)
        header = struct.pack("Q", nbytes(header) + frames_nbytes) + header

        frames = [header, *frames]
        frames_nbytes += nbytes(header)

        if frames_nbytes < 2 ** 17:  // 128kiB
            // small enough, send in one go
            frames = [b"".join(frames)]

Instances