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  1. Izumi Tsutsui (tsutsuii@social.mikutter.hachune.net)'s status on Sunday, 26-Aug-2018 10:37:13 JST Izumi Tsutsui Izumi Tsutsui

    :realtek: の NICが悪く言われる要因の一つと思われるこの RTL8139 ドライバソース中のコメント
    https://nxr.netbsd.org/xref/src/sys/dev/ic/rtl81x9.c?r=1.103#50
    "The RealTek 8139 PCI NIC redefines the meaning of 'low end.' This is probably the worst PCI ethernet controller ever made, with the possible exception of the FEAST chip made by SMC. The 8139 supports bus-master DMA, but it has a terrible interface that nullifies any performance gains that bus-master DMA usually offers."

    In conversation Sunday, 26-Aug-2018 10:37:13 JST from social.mikutter.hachune.net permalink

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    • Izumi Tsutsui (tsutsuii@social.mikutter.hachune.net)'s status on Sunday, 26-Aug-2018 10:37:51 JST Izumi Tsutsui Izumi Tsutsui
      in reply to

      ただし、 "low end" というのは仕様デザインの話であって、実装デザインの問題ではないというところに注意(安く作るために機能を削ってCPUに仕事させるという意味では適切な選択とも言えるし、実際多数のノートPCに採用された)

      In conversation Sunday, 26-Aug-2018 10:37:51 JST permalink
      ksmakoto repeated this.

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senooken JP Social is a social network, courtesy of senooken. It runs on GNU social, version 2.0.2-beta0, available under the GNU Affero General Public License.

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