Re: [Xen-devel] [PATCH] xen: sched: rtds: refactor code

2016-05-13 Thread Dario Faggioli
On Thu, 2016-05-12 at 23:34 -0400, Meng Xu wrote: > On Wed, May 11, 2016 at 11:20 AM, Tianyang Chen > wrote: > > > > No functional change: > >  -Various coding style fix > >  -Added comments for UPDATE_LIMIT_SHIFT. > > Hey, Tianyang, thanks for this. > > Use non-atomic

Re: [Xen-devel] [PATCH] xen: sched: rtds: refactor code

2016-05-12 Thread Meng Xu
Hi Tianyang On Wed, May 11, 2016 at 11:20 AM, Tianyang Chen wrote: > No functional change: > -Various coding style fix > -Added comments for UPDATE_LIMIT_SHIFT. > > Use non-atomic bit-ops: > -Vcpu flags are checked and cleared atomically. Performance can be > improved

[Xen-devel] [PATCH] xen: sched: rtds: refactor code

2016-05-11 Thread Tianyang Chen
No functional change: -Various coding style fix -Added comments for UPDATE_LIMIT_SHIFT. Use non-atomic bit-ops: -Vcpu flags are checked and cleared atomically. Performance can be improved with corresponding non-atomic versions since schedule.c already has spin_locks in place.