Why does writing to non-sequential lines in L2 perform so poorly?

By: Travis Downs (travis.downs.delete@this.gmail.com), June 18, 2020 5:34 pm
Room: Moderated Discussions
Travis Downs (travis.downs.delete@this.gmail.com) on June 18, 2020 5:32 pm wrote:

> The other type of store prefetching that you describe definitely exists. You get giant
> performance differences when you disable the L2 streamer for load-only workflows. If
> I had to guess, it is the same L2 streamer as used for loads, but it just notes if the
> loads are RFO or not, so it can issue the right type of request "downstream".
>

Sorry, that should read: "[y]ou get giant performance differences when you disable the L2 streamer for store-only workflows.

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TopicPosted ByDate
Why does writing to non-sequential lines in L2 perform so poorly?Travis2017/12/20 02:44 PM
  Bridges? Wells? (NT)Micahel S2017/12/20 03:53 PM
    Bridges? Wells? (NT)Travis2017/12/20 04:46 PM
      That should say "huh"? (NT)Travis2017/12/20 04:46 PM
        That should say "huh"?Jeff S.2017/12/20 05:11 PM
          That should say "huh"?Travis2017/12/20 06:34 PM
    Bridges? Wells?Jeff S.2017/12/20 05:17 PM
      Bridges? Wells?Travis2017/12/20 06:37 PM
    Bridges, Wells - positiveMichael S2017/12/21 02:52 AM
      Bridges, Wells - positiveTravis2017/12/21 09:35 AM
        Bridges, Wells - positiveMichael S2017/12/21 10:00 AM
  Why does writing to non-sequential lines in L2 perform so poorly?Linus Torvalds2017/12/20 06:18 PM
    Why does writing to non-sequential lines in L2 perform so poorly?Travis2017/12/20 06:54 PM
      Why does writing to non-sequential lines in L2 perform so poorly?Linus Torvalds2017/12/21 12:12 PM
        Why does writing to non-sequential lines in L2 perform so poorly?anon2017/12/22 03:29 AM
          Why does writing to non-sequential lines in L2 perform so poorly?Linus Torvalds2017/12/22 01:16 PM
            Why does writing to non-sequential lines in L2 perform so poorly?Travis2017/12/23 08:48 PM
            Why does writing to non-sequential lines in L2 perform so poorly?Travis Downs2020/06/13 03:18 PM
              Why does writing to non-sequential lines in L2 perform so poorly?John D. McCalpin2020/06/18 12:50 PM
                Why does writing to non-sequential lines in L2 perform so poorly?Travis Downs2020/06/18 05:32 PM
                  Why does writing to non-sequential lines in L2 perform so poorly?Travis Downs2020/06/18 05:34 PM
    Why does writing to non-sequential lines in L2 perform so poorly?anon.12017/12/21 06:09 PM
      Why does writing to non-sequential lines in L2 perform so poorly?Linus Torvalds2017/12/22 01:20 PM
        Why does writing to non-sequential lines in L2 perform so poorly?Travis2017/12/24 02:09 PM
  Why does writing to non-sequential lines in L2 perform so poorly?Travis2017/12/20 08:52 PM
    Why does writing to non-sequential lines in L2 perform so poorly?Adrian2017/12/21 12:09 AM
      Why does writing to non-sequential lines in L2 perform so poorly?Travis2017/12/21 09:23 AM
    Why does writing to non-sequential lines in L2 perform so poorly?-.-2017/12/27 03:53 AM
      Why does writing to non-sequential lines in L2 perform so poorly?-.-2017/12/27 03:53 AM
        Why does writing to non-sequential lines in L2 perform so poorly?Travis2017/12/27 04:18 PM
  Why does writing to non-sequential lines in L2 perform so poorly?Etienne2017/12/21 02:36 AM
    Why does writing to non-sequential lines in L2 perform so poorly?Michael S2017/12/21 02:58 AM
      Why does writing to non-sequential lines in L2 perform so poorly?Travis2017/12/21 09:26 AM
        Michael ignore my last question - saw your other reply (NT)Travis2017/12/21 09:27 AM
  Why does writing to non-sequential lines in L2 perform so poorly?Nksingg2017/12/26 06:47 AM
    Why does writing to non-sequential lines in L2 perform so poorly?David Kanter2017/12/26 11:48 AM
    Why does writing to non-sequential lines in L2 perform so poorly?Travis2017/12/27 04:33 PM
  Cannot reproduce with microcode 0xc6Travis Downs2019/02/26 04:23 PM
    Cannot reproduce with microcode 0xc6Adrian2019/02/26 09:35 PM
    Cannot reproduce with microcode 0xc6Adrian2019/02/26 10:07 PM
    Cannot reproduce with microcode 0xc6Adrian2019/02/27 05:02 AM
      Cannot reproduce with microcode 0xc6Travis Downs2019/02/27 08:25 AM
        Cannot reproduce with microcode 0xc6Adrian2019/02/28 01:16 AM
          Cannot reproduce with microcode 0xc6Travis Downs2019/03/07 06:51 PM
        Cannot reproduce with microcode 0xc6Adrian2019/02/28 09:54 AM
          Cannot reproduce with microcode 0xc6Travis Downs2019/03/24 06:34 PM
    Cannot reproduce with microcode 0xc6Travis Downs2019/02/27 03:20 PM
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