On Thu, Jan 11, 2018 at 12:00 PM, Andrew Cooper <andrew.coop...@citrix.com> wrote: > > struct timer is only 48 bytes and repl_timer has a 1-to-1 correspondance with > struct rt_private, so having it referenced by pointer is wasteful. > > This avoids one memory allocation in rt_init(), and the resulting diffstat is: > > add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-156 (-156) > function old new delta > rt_switch_sched 134 133 -1 > rt_context_saved 278 271 -7 > rt_vcpu_remove 253 245 -8 > rt_vcpu_sleep 234 218 -16 > repl_timer_handler 761 744 -17 > rt_deinit 44 20 -24 > rt_init 219 136 -83 > > As an extra bit of cleanup noticed while making this change, there is no need > to call cpumask_clear() on an zeroed memory allocation. > > Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com> > ---
Reviewed-by: Meng Xu <men...@cis.upenn.edu> Thanks, Meng ----------- Meng Xu Ph.D. Candidate in Computer and Information Science University of Pennsylvania http://www.cis.upenn.edu/~mengxu/ _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
