Sujet : Re: Linux 6.13
De : vallor (at) *nospam* cultnix.org (vallor)
Groupes : comp.os.linux.advocacyDate : 20. Jan 2025, 20:06:42
Autres entêtes
Message-ID : <lv7l61Fkht9U1@mid.individual.net>
References : 1 2 3 4 5 6
User-Agent : Pan/0.161 (Hmm2; c45f6052; Linux-6.13.0)
On Mon, 20 Jan 2025 18:40:19 +0000, Farley Flud <
fsquared@fsquared.linux>
wrote in <
181c7aa8579b72e5$175359$891815$802601b3@news.usenetexpress.com>:
On Mon, 20 Jan 2025 18:05:29 +0000, vallor wrote:
PREEMPT_DYNAMIC
>
You copied the wrong section:
config PREEMPT_DYNAMIC
bool "Preemption behaviour defined on boot"
depends on HAVE_PREEMPT_DYNAMIC
select JUMP_LABEL if HAVE_PREEMPT_DYNAMIC_KEY
select PREEMPT_BUILD
default y if HAVE_PREEMPT_DYNAMIC_CALL
help
This option allows to define the preemption model on the kernel
command line parameter and thus override the default preemption
model defined during compile time.
***----> The feature is primarily interesting for Linux distributions which
provide a pre-built kernel binary to reduce the number of kernel
flavors they offer while still offering different usecases.
The runtime overhead is negligible with HAVE_STATIC_CALL_INLINE enabled
but if runtime patching is not available for the specific architecture
then the potential overhead should be considered.
Interesting if you want the same pre-built kernel should be used for
both Server and Desktop workloads.
Eh, I'll give you that one, because I had it checked. Standby on that.
Meanwhile, you *still* haven't posted your uname -a, and you *still*
haven't built the latest Pan, and you *still* haven't posted
your "perfect" C code that uses gmp to compute subfactorials.
(BTW, have you figured out yet why you don't want PREEMPT_LAZY?)
-- -v System76 Thelio Mega v1.1 x86_64 NVIDIA RTX 3090 Ti OS: Linux 6.13.0 Release: Mint 21.3 Mem: 258G "Please Tell Me if you Don't Get This Message"