On Sat, 2025-02-22 at 18:46 -0800, Andrew Morton wrote: > > I'm all for auto-tuning but yeah, for a boot-time thing like this we > require a boot-time knob. > > As is often (always) the case, the sad thing is that about five > people > in the world know that this exists. How can we tell our users that > this new thing is available and possibly useful to them? We have no > channel. > > Perhaps in your [2/2] we could be noisier? > > HugeTLB: allocation took 4242ms with > hugepage_alloc_threads=42 > > and with a facility level higher than KERN_DEBUG (can/should we use > pr_foo() here, btw?). That should get people curious and poking > around > in the documentation and experimenting. I completely agree with what you are saying. So for v2, I would: a) change the default from 2 threads per node to 25% of the total threads per node to make it faster for everyone b) make it noisier by using pr_info instead of printk(KERN_DEBUG ...) and also print the number of threads that are used Anything that I am missing here?
