Intel AVX-512 dev box

By: Adrian (, September 11, 2019 9:50 pm
Room: Moderated Discussions
Mr. Camel ( on September 11, 2019 6:03 pm wrote:
> me ( on September 11, 2019 5:58 pm wrote:
> > > Could it be that the Ice Lake system cannot maintain the
> > > max turbo boost frequency for a long period of time?
> > >
> >
> > It'd certainly be easy enough to use CPU-Z or similar to watch the frequency as it
> > runs. Should point out with all that spyware in Windows 10, there's always something
> > running in the background so the 1-core turbo frequency isn't that helpful.
> CPU-z shows nothing.
> I think the platform is new and CPU-Z has not caught up.

I do not know if you are familiar with this tool, but I would boot the laptop from an USB stick with Linux and I would run turbostat simultaneously with some benchmarks.

With that you could see the frequency of each core as a function of time and also the temperature and power consumption.

I have not verified if Ice Lake has any changes in the MSRs and performance counters used by turbostat and if turbostat was updated for it, but with previous CPUs that was usually done before launch and since Intel has already provided already a lot of patches for Tiger Lake, one year in advance, I expect that turbostat should already work with Ice Lake.

If you want to try this and want to skip reading the man page, I can provide a suitable command line for turbostat.

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Intel AVX-512 dev boxMr. Camel2019/08/13 11:30 AM
  Intel AVX-512 dev boxMr. Camel2019/08/13 11:31 AM
    Intel AVX-512 dev boxbob cloud2019/08/13 12:10 PM
      Intel AVX-512 dev boxMr. Camel2019/08/13 04:01 PM
        Intel AVX-512 dev boxAdrian2019/08/13 07:57 PM
          Intel AVX-512 dev boxTravis Downs2019/08/13 08:34 PM
            Intel AVX-512 dev boxAdrian2019/08/13 08:47 PM
              Intel AVX-512 dev boxAdrian2019/08/13 09:27 PM
              Intel AVX-512 dev boxanonymous22019/08/14 01:53 PM
          Intel AVX-512 dev boxMichael S2019/08/13 11:42 PM
            Intel AVX-512 dev boxAdrian2019/08/14 12:04 AM
              Intel AVX-512 dev boxMichael S2019/08/14 12:50 AM
              Intel AVX-512 dev boxGeoff Langdale2019/08/14 05:02 PM
            Intel AVX-512 dev boxbob cloud2019/08/14 07:01 AM
    Intel AVX-512 dev boxJukka Larja2019/08/14 07:01 AM
  Intel AVX-512 dev boxEric Bron2019/08/13 09:47 PM
    Intel AVX-512 dev boxMr. Camel2019/08/14 03:18 AM
  Beware of chip-to-chip differences ...Mark Roulo2019/08/14 06:44 AM
  Intel AVX-512 dev boxMr. Camel2019/09/11 02:14 PM
    Intel AVX-512 dev boxMr. Camel2019/09/11 02:30 PM
      Intel AVX-512 dev boxme2019/09/11 04:58 PM
        Intel AVX-512 dev boxMr. Camel2019/09/11 05:03 PM
          Intel AVX-512 dev boxNathan2019/09/11 05:18 PM
            Intel AVX-512 dev boxGoose2019/09/11 08:08 PM
              Intel AVX-512 dev boxGoose2019/09/11 08:09 PM
          Intel AVX-512 dev boxAdrian2019/09/11 09:50 PM
    Intel AVX-512 dev boxsomeone2019/09/12 12:42 AM
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