By: Adrian (a.delete@this.acm.org), November 18, 2020 9:15 am
Room: Moderated Discussions
Dummond D. Slow (mental.delete@this.protozoa.us) on November 18, 2020 7:48 am wrote:
>
> Interesting but "long dependency chains"don't disqualify it as a benchmark, does
> it. I doubt that it is very expceptional and no other software does that.
>
> I hope eventually we get some very comparable HT/noHT CPU in AnandTech benchmark for comparing,
> in the meantime I found this https://www.anandtech.com/bench/product/2622?vs=2652
> Skylake @ 3,8-4,2GHz 4c/4t versus 4,0-4,2 4c/8t (sadly also has more L2 cache due to Intel's segmenting).
A few of the workloads in which I am interested have long dependency chains, so there are people for which such benchmarks are interesting.
This fact from Andrei, that Cinebench contains long dependency chains, explains very well why M1 is less good in it than in other benchmarks.
Among 2 CPUs having the same average performance, a benchmark that contains long dependency chains will favor the one having a low IPC and a high clock frequency, against the one having a high IPC and a low clock frequency.
>
> Interesting but "long dependency chains"don't disqualify it as a benchmark, does
> it. I doubt that it is very expceptional and no other software does that.
>
> I hope eventually we get some very comparable HT/noHT CPU in AnandTech benchmark for comparing,
> in the meantime I found this https://www.anandtech.com/bench/product/2622?vs=2652
> Skylake @ 3,8-4,2GHz 4c/4t versus 4,0-4,2 4c/8t (sadly also has more L2 cache due to Intel's segmenting).
A few of the workloads in which I am interested have long dependency chains, so there are people for which such benchmarks are interesting.
This fact from Andrei, that Cinebench contains long dependency chains, explains very well why M1 is less good in it than in other benchmarks.
Among 2 CPUs having the same average performance, a benchmark that contains long dependency chains will favor the one having a low IPC and a high clock frequency, against the one having a high IPC and a low clock frequency.
