Monday, June 10, 2024

Re: cpu cores

Greetings,

On Mon, 10 Jun 2024 13:15:13 +0100,
Riccardo Mottola <riccardo.mottola@libero.it> wrote:
>
> This is for workstation use, mixed user and developer. To each its own.
> I bet it ends depending also on cache, memory and specific jobs.
>

Do not forget about IO, which can be a bottel neck in case of compiling.

Have you tried to run compilation with the same parallerism with and without
HT enabled?

For example build kernel with -j10 which is bigger than number of CPU with
enabled HT on that machine (4 / 8):

without HT:

8m42.07s real 27m31.80s user 4m55.68s system

vs with HT:

8m38.82s real 50m47.22s user 8m41.53s system


--
wbr, Kirill

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