Roonの再生はCPUの１つのコアだけが使われるのでしょうか？

[ansin_plaza (japanese ramen)]

こんにちは。
Roonは「シングルコアの性能が大切」といった記事を見かけますが、これはどういう意味でしょうか？
Roonの再生は1つのコアだけが使用されるのでしょうか？

例えば13世代intel nucは12コア 16スレッドですが、Roonの再生では12のコアのうちの1コアだけが使われるのでしょう。
そう考えると、よりコア数の少ない古いモデルが有利のような気がします。

自分は13世代を使用していますが、古い8世代よりも明らかに動作が速いです。
だれかRoonの再生の仕組みを教えてください。

[Geoff_Coupe]

Translation:

Hello.
I’ve seen articles saying that “single-core performance is important” for Roon, but what does that mean?
Does Roon playback only use one core?

For example, the 13th generation Intel NUC has 12 cores and 16 threads, but Roon playback would only use one of the 12 cores.
In that sense, it seems like older models with fewer cores would have an advantage.

I’m using the 13th generation, and it’s clearly faster than the older 8th generation.

Can someone explain how Roon playback works?

[Suedkiez (Just a fellow user like you)]

• Database maintenance and the UI seems to run on a single core.
• Playback can use one core per output zone, I believe, but playback as such is not a heavy task at all, so it’s possible to run more than one zone on a core.
• DSP (MUSE in Roon) generally runs as part of playback on the core assigned to the output zone. This can use much of the resources of one core, depending on what you do with DSP.
• I’m not a DSD person, but I think some DSD upsampling can use more than one core (?)
• Search uses multiple cores.

Hence, single-core performance is most important, but if you run many zones in parallel with significant DSP, more cores help.

@Geoff_Coupe

In that sense, it seems like older models with fewer cores would have an advantage.

Depends on the single-core speed of the CPU. There are noticeable differences between Intel generations (e.g., 10th gen has slower single-core speed) but new generations are also faster in single-core speed than old generations.

@Geoff_Coupe

I’m using the 13th generation, and it’s clearly faster than the older 8th generation.

That’s because the 13th-gen CPU is clearly faster in single-core speed, too:

https://www.cpubenchmark.net/compare/3302vs3299vs5129/Intel-i7-8559U-vs-Intel-i5-8259U-vs-Intel-i7-1370P