Interesting Zen IPC benchmarks

By: Per Hesselgren (perhesselgren.delete@this.yahoo.se), November 24, 2020 9:11 am
Room: Moderated Discussions
Chester (lamchester.delete@this.gmail.com) on November 22, 2020 8:33 pm wrote:
> Andrei F (andrei.delete@this.anandtech.com) on November 22, 2020 4:08 am wrote:
> > Chester (lamchester.delete@this.gmail.com) on November 21, 2020 2:49 pm wrote:
> > > Some interesting things:
> > > - Zen 3 beats Intel on full random mem access latency despite using
> > > a separate IO die. Maybe 6 page walkers are playing a role.
> >
> > Page walkers have nothing to do with it, you can't page-walk ahead of an actual proper
> > working pointer-chase pattern. The Sandra test is just broken and showing nonsense.
> >
> > https://www.anandtech.com/show/16214/amd-zen-3-ryzen-deep-dive-review-5950x-5900x-5800x-and-5700x-tested/5
> >
> > The real data shows that there's essentially no change between Zen2 and Zen3 in cycles,
> > which is expected given it's the exact same IOD, and Intel is still ahead in latency.
>
> How does AT's methodology differ from Sandra's, and why is Sandra's latency lower?
> I'm not saying AT's wrong (you're probably right, - I highly doubt latency changed
> like that with the same IOD). I'm just curious what's actually being measured.
>
> > > Try scrolling down a bit. The little bar on the right of your browser window can do that - try dragging
> > > it down or pushing the down arrow at the bottom, and you'll see a whole lot more than rendering.
> > >
> > > There's compression, gaming, video editing, image editing, as well as a couple
> > > of synthetics. Not the most complete coverage, but miles better than SPEC.
> >
> > Yea, if you mean miles better means 1/4th coverage of the subtests.
>
> Since most/all of the subtests are irrelevant and meaningless for consumers, yeah I consider it
> miles better. There's a reason SPEC isn't popular among review sites. No one cares about it.

I like SPEC test because I can find some info at spec.org's DB about every bench.
I also can find some papers about branch prediction (for example) in spec tests.
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TopicPosted ByDate
Interesting Zen IPC benchmarksAdrian2020/11/21 07:14 AM
  Interesting Zen IPC benchmarksjuanrga2020/11/21 09:22 AM
    Interesting Zen IPC benchmarksChester2020/11/21 02:49 PM
      Interesting Zen IPC benchmarksAndrei F2020/11/22 04:08 AM
        Interesting Zen IPC benchmarksChester2020/11/22 08:33 PM
          Interesting Zen IPC benchmarksnone2020/11/23 12:59 AM
            Interesting Zen IPC benchmarksnone2020/11/23 01:01 AM
              Interesting Zen IPC benchmarksnone2020/11/23 01:01 AM
          No...David Kanter2020/11/23 07:16 AM
            No...Chester2020/11/23 02:15 PM
              No...Foo_2020/11/24 02:34 AM
                No...Chester2020/11/24 11:45 PM
                  No...Per Hesselgren2020/11/25 12:57 AM
                  No...Adrian2020/11/25 03:21 AM
          Interesting Zen IPC benchmarksDoug S2020/11/23 12:03 PM
            Interesting Zen IPC benchmarksChester2020/11/23 02:26 PM
              Programs people useFoo_2020/11/24 02:43 AM
                Programs people useJukka Larja2020/11/24 06:07 AM
                Cinebench is the new Dhrystone :) (NT)none2020/11/25 12:10 AM
              Interesting Zen IPC benchmarksjuanrga2020/11/24 07:38 AM
          Interesting Zen IPC benchmarksAndrei F2020/11/24 04:47 AM
            Interesting Zen IPC benchmarksChester2020/11/24 11:32 PM
              Questionable thoughtsbenchmark critic2020/11/25 07:41 AM
                Questionable thoughtsChester2020/11/25 02:14 PM
                Questionable thoughtsnone2020/11/26 12:14 AM
                  Links?benchmark critic2020/11/26 08:48 AM
              Interesting Zen IPC benchmarksGroo2020/11/25 12:48 PM
                Interesting Zen IPC benchmarksChester2020/11/25 03:36 PM
                  Interesting Zen IPC benchmarksGroo2020/11/26 01:46 PM
                    Interesting Zen IPC benchmarksChester2020/11/26 06:32 PM
                      Interesting Zen IPC benchmarksGroo2020/11/27 09:27 AM
                        Interesting Zen IPC benchmarksChester2020/11/29 06:16 AM
                          Interesting Zen IPC benchmarksGroo2020/11/29 08:56 AM
                            Interesting Zen IPC benchmarksChester2020/11/29 03:41 PM
                Interesting Zen IPC benchmarksRayla2020/11/26 06:46 AM
                  BenchmarksDavid Kanter2020/11/26 09:05 AM
                    Benchmarksblaine2020/11/26 12:04 PM
          Interesting Zen IPC benchmarksPer Hesselgren2020/11/24 09:11 AM
            Interesting Zen IPC benchmarksChester2020/11/24 11:42 PM
      Interesting Zen IPC benchmarksjuanrga2020/11/22 06:09 AM
        Interesting Zen IPC benchmarksChester2020/11/22 08:53 PM
          Interesting Zen IPC benchmarksjuanrga2020/11/23 12:16 PM
            Interesting Zen IPC benchmarksChester2020/11/23 01:27 PM
              Interesting Zen IPC benchmarksjuanrga2020/11/24 07:25 AM
            Interesting Zen IPC benchmarksAdrian2020/11/24 10:51 AM
              Interesting Zen IPC benchmarksjuanrga2020/11/26 03:52 AM
  The Stilt's Zen 3 IPC benchmarksDummond D. Slow2020/11/25 08:29 AM
    The Stilt's Zen 3 IPC benchmarksChester2020/11/25 03:49 PM
      The Stilt's Zen 3 IPC benchmarksDummond D. Slow2020/11/25 04:58 PM
        The Stilt's Zen 3 IPC benchmarksDoug S2020/11/26 08:19 AM
      The Stilt's Zen 3 IPC benchmarksDummond D. Slow2020/11/25 05:13 PM
        The Stilt's Zen 3 IPC benchmarksChester2020/11/26 10:24 AM
          The Stilt's Zen 3 IPC benchmarksitsmydamnation2020/11/26 02:06 PM
            The Stilt's Zen 3 IPC benchmarksChester2020/11/26 06:10 PM
            The Stilt's Zen 3 IPC benchmarksDoug S2020/11/27 03:17 PM
      The Stilt's Zen 3 IPC benchmarksjuanrga2020/11/26 04:10 AM
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