Frederic Weisbecker <frede...@kernel.org> writes: > > Since recalculating the next_expiry isn't a free operation, especially > when we must climb up the last wheel level to find out that no timer > has
I'm climbing stairs or mountains :) > been enqueued at all, lets reuse the next expiry cache when it is > known lets? Come on, the changelog is about facts not what we might do. > unsigned long clk; > unsigned long next_expiry; > + bool next_expiry_recalc; > unsigned int cpu; > bool is_idle; Care to stare at the output of pahole -C timer_base kernel/time/timer.o before and after? Thanks, tglx