On Fri, Jan 24, 2025 at 07:45:23AM -0800, Paul E. McKenney wrote: > On Fri, Jan 24, 2025 at 12:41:38PM +0100, Uladzislau Rezki wrote: > > On Thu, Jan 23, 2025 at 12:29:45PM -0800, Paul E. McKenney wrote: > > > On Thu, Jan 23, 2025 at 07:58:26PM +0100, Uladzislau Rezki (Sony) wrote: > > > > This configuration specifies the maximum number of CPUs which > > > > is set to 8. The problem is that it can not be overwritten for > > > > something higher. > > > > > > > > Remove that configuration for TREE05, so it is possible to run > > > > the torture test on as many CPUs as many system has. > > > > > > > > Signed-off-by: Uladzislau Rezki (Sony) <ure...@gmail.com> > > > > > > You should be able to override this on the kvm.sh command line by > > > specifying "--kconfig CONFIG_NR_CPUS=128" or whatever number you wish. > > > For example, see the torture.sh querying the system's number of CPUs > > > and then specifying it to a number of tests. > > > > > > Or am I missing something here? > > > > > It took me a while to understand what happens. Apparently there is this > > 8 CPUs limitation. Yes, i can do it manually by passing --kconfig but > > you need to know about that. I have not expected that. > > > > Therefore i removed it from the configuration because i have not found > > a good explanation why we need. It is confusing instead :) > > Right now, if I do a run with --configs "TREE10 14*CFLIST", this will > make use of 20 systems with 80 CPUs each. If you remove that line from > TREE05, won't each instance of TREE05 consume a full system, for a total > of 33 systems? Yes, I could use "--kconfig CONFIG_NR_CPUS=8" on the > command line, but that would affect all the scenarios, not just TREE05. > Including (say) TINY01, where I believe that it would cause kvm.sh > to complain about a Kconfig conflict. > > Hence me not being in favor of this change. ;-) > > Is there another way to make things work for both situations? > OK, i see. Well. I will just go with --kconfig CONFIG_NR_CPUS=foo if i need more CPUs for TREE05.
I will not resist, we just drop this patch :) -- Uladzislau Rezki
