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A comment on Why We Love QUIC and HTTP/3. Parent comment

Re:Why We Love QUIC and HTTP/3 by codys on Sunday March 24, 2019 @11:16AM (#19476791)
While this is useful, I don't think it would completely resolve the noted "tons of send syscalls" issue. QUIC performs it's own flow control and I don't think it can just send all the packers composing a file at once (all the time, at least)
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Re:Why We Love QUIC and HTTP/3 by the8472 on Sunday March 24, 2019 @11:36AM (#19476902)
If your server handles many connections simultanously you can still bundle a lot of packets in a single sendmmsg syscall, it can dispatch to a different destination address for each packet.
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