On Tue, Feb 07, 2023 at 12:49:41PM +0100, Frederic Weisbecker <frederic@xxxxxxxxxx> wrote:
But what do we need these annotations for? The only outcome I've everTake that as a note of a lone actor then who found it useful documenting
seen with these is that it confuses everyone.
relations between various parts of the code.
This way I can add the support for each part smoothly.Yeah, that makes sense.
For example first patch moves HK_TYPE_TIMER to HK_TYPE_KERNEL_NOISESo does this mean you'll re-introduce the finer grained HK_* flags
and unbound timers are supported by cpuset.kernel_noise, second patch
moves HK_TYPE_WQ to HK_TYPE_KERNEL_NOISE and unbound workqueues are
supported by cpuset.kernel_noise, etc until all of them turned by
nohz_full= are supported...
again?
The idea (not only mine?) is that this would extend
cpuset.cpus.partition that only allows HK_TYPE_DOMAIN analogy. The
mapping to individual flags may not be exposed to users. The graduality
could be achieved by adding more flags under user_exposed_term.
Just to be on the same page -- that's how I understand it, the original
HK_* resolution turned out impractical for users and that's why the
direction is towards some loose combinations representing user
intentions. Is that right?