On Wed, Jan 20, 2016 at 10:42:56AM -0600, Christoph Lameter wrote: > On Wed, 20 Jan 2016, Frederic Weisbecker wrote: > > > > So we agreed long time ago, that we first fix the issues with s single > > > task > > > running undisturbed in user space, i.e. tickless. Those issues have never > > > been > > > resolved fully, but now you try to add more complexity of extra runnable > > > tasks, nohz tasks sleeping and whatever. > > > > Nohz tasks do sleep, really, at least we need to handle that case now. > > Sleep meaning call into the OS to be put to sleep?
Indeed, when the task has finished its work, it goes to sleep, right? > Why would NOHZ be active then? It's active when the task active.
