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.
> 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.
Topic | Posted By | Date |
---|---|---|
alder lake. | inteluser | 2021/09/10 01:52 AM |
alder lake. | Andrei F | 2021/09/10 09:31 AM |
alder lake. | Andrey | 2021/09/10 09:38 AM |
alder lake. | rwessel | 2021/09/10 11:18 AM |
alder lake. | Andrei F | 2021/09/10 12:49 PM |
alder lake. | Andrey | 2021/09/10 04:12 PM |
alder lake. | David Hess | 2021/09/10 07:39 PM |
alder lake. | Andrey | 2021/09/11 12:28 AM |
alder lake. | --- | 2021/09/10 05:24 PM |
alder lake. | Andrei F | 2021/09/12 01:09 AM |
DVFS | David Kanter | 2021/09/12 09:58 PM |
DVFS | Andrei F | 2021/09/13 01:02 AM |
DVFS | Anon | 2021/09/13 03:28 AM |
DVFS | Jukka Larja | 2021/09/13 05:35 AM |
DVFS | Andrei F | 2021/09/14 12:07 AM |
DVFS | Jukka Larja | 2021/09/14 04:11 AM |
DVFS | Andrei F | 2021/09/14 07:55 AM |
DVFS | Jukka Larja | 2021/09/14 10:23 AM |
DVFS | --- | 2021/09/13 10:19 AM |
DVFS | Doug S | 2021/09/13 10:57 AM |
DVFS | David Hess | 2021/09/13 11:32 AM |
DVFS | --- | 2021/09/13 01:06 PM |
DVFS | David Hess | 2021/09/13 02:21 PM |
DVFS | David Kanter | 2021/09/15 03:05 PM |
DVFS | David Hess | 2021/09/13 11:46 AM |
DVFS | Jukka Larja | 2021/09/14 04:35 AM |
Quick shutdown? | David Kanter | 2021/09/15 10:46 AM |
Quick shutdown? | Andrei F | 2021/09/16 07:12 AM |
Quick shutdown? | David Kanter | 2021/09/16 11:04 AM |
Quick shutdown? | Andrei F | 2021/09/17 01:35 AM |
Quick shutdown? | Andrei F | 2021/09/17 01:38 AM |
and weren't 'they' right? | Daniel B | 2021/09/13 04:20 AM |
and weren't 'they' right? | Andrei F | 2021/09/13 04:51 AM |
and weren't 'they' right? | Daniel B | 2021/09/13 06:29 AM |
and weren't 'they' right? | anon | 2021/09/13 05:07 AM |
and weren't 'they' right? | Jukka Larja | 2021/09/13 05:26 AM |
and weren't 'they' right? | anon | 2021/09/13 11:37 PM |
Alder Lake has no little cores | Heikki Kultala | 2021/09/13 06:33 AM |
Alder Lake has no little cores | Michael S | 2021/09/13 07:33 AM |
Alder Lake has no little cores | me | 2021/09/13 10:45 AM |
Alder Lake has no little cores | Heikki Kultala | 2021/09/13 01:49 PM |
Alder Lake has no little cores | anon | 2021/09/13 11:42 PM |
why stop at two core sizes? | hobold | 2021/09/14 05:47 AM |
Memory caches did this, right? | Mark Roulo | 2021/09/14 02:51 PM |
Memory caches did this, right? | Brett | 2021/09/14 07:17 PM |
Memory caches did this, right? | Kevin G | 2021/09/16 03:10 PM |
Large reorder buffers (L1+L2) | ⚛ | 2021/09/15 11:24 AM |
Large reorder buffers (L1+L2) | hobold | 2021/09/15 12:06 PM |
Alder Lake has no little cores | Adrian | 2021/09/14 08:33 AM |
and weren't 'they' right? | David Hess | 2021/09/13 12:00 PM |
Battery vs Performance | Mark Roulo | 2021/09/13 12:18 PM |
Battery vs Performance | Doug S | 2021/09/13 02:05 PM |
Battery vs Performance | David Hess | 2021/09/13 02:28 PM |
Battery vs Performance | --- | 2021/09/13 05:08 PM |
Battery vs Performance | --- | 2021/09/13 05:08 PM |
Battery vs Performance | Doug S | 2021/09/13 08:53 PM |
Battery vs Performance | Anon | 2021/09/14 06:42 AM |
and weren't 'they' right? | Daniel B | 2021/09/13 12:57 PM |
and weren't 'they' right? | David Hess | 2021/09/13 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? | Brendan | 2021/09/14 03:30 AM |
and weren't 'they' right? | Jukka Larja | 2021/09/14 04:31 AM |
and weren't 'they' right? | Etienne Lorrain | 2021/09/14 12:29 AM |