On 10/30/23 3:41 AM, Zhenlei Huang wrote:


On Oct 30, 2023, at 12:09 PM, Zhenlei Huang <z...@freebsd.org> wrote:



On Oct 29, 2023, at 5:43 PM, Gordon Bergling <g...@freebsd.org> wrote:

Hi,

I am currently building a new system, which should be based on 14.0-RELEASE.
Therefor I am tracking releng/14.0 since its creation and updating it currently
via the usualy buildworld steps.

What I have noticed recently is, that the [KTLS] is missing. I have a stable/13
system which shows the [KTLS] thread and a very recent -CURRENT that also shows
the [KTLS] thread.

The stable/13 and releng/14.0 systems both use the GENERIC kernel, without any
custom modifications.

Loaded KLDs are also the same.

Did I miss something, or is there something in releng/14.0 missing, which
is currenlty enabled in stable/13?

KTLS shall still work as intended, the creation of it threads is deferred.

See a72ee355646c (ktls: Defer creation of threads and zones until first use)
Run ktls_init() when the first KTLS session is created rather than
unconditionally during boot.  This avoids creating unused threads and
allocating unused resources on systems which do not use KTLS.

```
-SYSINIT(ktls, SI_SUB_SMP + 1, SI_ORDER_ANY, ktls_init, NULL);
```

Seems 14.0 only create one KTLS thread.

IIRC 13.2 create one thread per core.

That part should not be different.  There should always be one thread per core.

--
John Baldwin


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