Alder Lake has no little cores

By: Heikki Kultala (heikki.kultala.delete@this.gmail.com), September 13, 2021 1:49 pm
Room: Moderated Discussions
Michael S (already5chosen.delete@this.yahoo.com) on September 13, 2021 8:33 am wrote:
> Heikki Kultala (heikki.kultala.delete@this.gmail.com) on September 13, 2021 7:33 am wrote:
> > There are no little cores in Alder Lake. There are mediun cores. And these
> > medium cores gives twice the performance/area than the big cores.
> >
>
> Who cares?

Anybody who cares about performance on multi-threaeded workloads.

> CPU cores, including L2, are not majority of client SoC die area. 25-30% ? Or less?

Wrong.

Much more in desktop version of Alder lake

https://cdn.mos.cms.futurecdn.net/ufCg3SpmYNZvFFN7badJfD-970-80.jpg.webp

> > Now there is throughput performance worth 12 big cores, but area of only 10 big cores.
> >
>
>
> Who cares?

Anybody who cares about performance on multi-threaded workloads.

> Embarrassingly-parallel client workloads are very rare.

Taking advantage of more than 8 threads does not require the workload to be embrassassingly parallel.

> > Greacemont is exactly that medium core.
> >
>
> But I certainly don't need medium cores on desktop any more than
> I need little cores. Either one serves no useful purpose.

Medium cores server a very useful purpose of improving throughput performance.

> Unless it's low end cost-optimized desktop, probably in miniPC form-factor,
> in which case I don't need anything *but* medium cores.

Often you have one thread where you want maximum performance, and the factor of the computer does not affect that. Not wanting at least single big core for that is pure stupidity or ignorance.
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alder lake.inteluser2021/09/10 01:52 AM
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                    DVFSJukka Larja2021/09/14 04:11 AM
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                        DVFSJukka Larja2021/09/14 10:23 AM
                DVFS---2021/09/13 10:19 AM
                  DVFSDoug S2021/09/13 10:57 AM
                    DVFSDavid Hess2021/09/13 11:32 AM
                    DVFS---2021/09/13 01:06 PM
                      DVFSDavid Hess2021/09/13 02:21 PM
                    DVFSDavid Kanter2021/09/15 03:05 PM
                  DVFSDavid Hess2021/09/13 11:46 AM
                  DVFSJukka Larja2021/09/14 04:35 AM
                Quick shutdown?David Kanter2021/09/15 10:46 AM
                  Quick shutdown?Andrei F2021/09/16 07:12 AM
                    Quick shutdown?David Kanter2021/09/16 11:04 AM
                      Quick shutdown?Andrei F2021/09/17 01:35 AM
                        Quick shutdown?Andrei F2021/09/17 01:38 AM
            and weren't 'they' right?Daniel B2021/09/13 04:20 AM
              and weren't 'they' right?Andrei F2021/09/13 04:51 AM
                and weren't 'they' right?Daniel B2021/09/13 06:29 AM
              and weren't 'they' right?anon2021/09/13 05:07 AM
                and weren't 'they' right?Jukka Larja2021/09/13 05:26 AM
                  and weren't 'they' right?anon2021/09/13 11:37 PM
              Alder Lake has no little coresHeikki Kultala2021/09/13 06:33 AM
                Alder Lake has no little coresMichael S2021/09/13 07:33 AM
                  Alder Lake has no little coresme2021/09/13 10:45 AM
                  Alder Lake has no little coresHeikki Kultala2021/09/13 01:49 PM
                    Alder Lake has no little coresanon2021/09/13 11:42 PM
                why stop at two core sizes?hobold2021/09/14 05:47 AM
                  Memory caches did this, right?Mark Roulo2021/09/14 02:51 PM
                    Memory caches did this, right?Brett2021/09/14 07:17 PM
                      Memory caches did this, right?Kevin G2021/09/16 03:10 PM
                  Large reorder buffers (L1+L2)2021/09/15 11:24 AM
                    Large reorder buffers (L1+L2)hobold2021/09/15 12:06 PM
                Alder Lake has no little coresAdrian2021/09/14 08:33 AM
              and weren't 'they' right?David Hess2021/09/13 12:00 PM
                Battery vs PerformanceMark Roulo2021/09/13 12:18 PM
                  Battery vs PerformanceDoug S2021/09/13 02:05 PM
                    Battery vs PerformanceDavid Hess2021/09/13 02:28 PM
                      Battery vs Performance---2021/09/13 05:08 PM
                      Battery vs Performance---2021/09/13 05:08 PM
                      Battery vs PerformanceDoug S2021/09/13 08:53 PM
                    Battery vs PerformanceAnon2021/09/14 06:42 AM
                and weren't 'they' right?Daniel B2021/09/13 12:57 PM
                  and weren't 'they' right?David Hess2021/09/13 02:11 PM
                    and weren't 'they' right?---2021/09/13 02:38 PM
                  and weren't 'they' right?---2021/09/13 02:32 PM
                and weren't 'they' right?Brendan2021/09/14 03:30 AM
                  and weren't 'they' right?Jukka Larja2021/09/14 04:31 AM
              and weren't 'they' right?Etienne Lorrain2021/09/14 12:29 AM
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