> -----Original Message----- > From: Dario Faggioli [mailto:dario.faggi...@citrix.com] > Sent: Wednesday, January 20, 2016 7:13 PM > To: Jan Beulich <jbeul...@suse.com>; Wu, Feng <feng...@intel.com> > Cc: Andrew Cooper <andrew.coop...@citrix.com>; George Dunlap > <george.dun...@eu.citrix.com>; Tian, Kevin <kevin.t...@intel.com>; xen- > de...@lists.xen.org; Keir Fraser <k...@xen.org> > Subject: Re: [PATCH v10 6/7] vmx: VT-d posted-interrupt core logic handling > > On Wed, 2016-01-20 at 01:35 -0700, Jan Beulich wrote: > > > > > On 20.01.16 at 08:49, <feng...@intel.com> wrote: > > > > > > If we put the hook in 'else', we'd always go down the full blocking > path, even if an event became pending while arranging for that, and > we'll have to be woken again, as soon as the event is handled. How > effective an optimization this is depends on how probable and frequent > it is that we get interrupts during the execution of the hook, which, > as said, it's not easy to either just tell or measure.
Thanks a lot for your explanation, Dario. Thanks, Feng _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
