On Wed, 6 Jan 2016 09:21:06 +0100 Peter Zijlstra <pet...@infradead.org> wrote:
> On Wed, Jan 06, 2016 at 09:16:43AM +0100, Peter Zijlstra wrote: > > On Tue, Jan 05, 2016 at 09:42:27PM +0000, One Thousand Gnomes wrote: > > > > It suffers the typical problems all those constructs do; namely it > > > > wrecks accountability. > > > > > > That's "government thinking" ;-) - for most real users throughput is > > > more important than accountability. With the right API it ought to also > > > be compile time switchable. > > > > Its to do with having been involved with -rt. RT wants to do > > accountability for such things because of PI and sorts. > > Also, real people really do care about latency too, very bad worst case > spikes to upset things. Some yes - I'm familiar with the way some of the big financial number crunching jobs need this. There are also people who instead care a lot about throughput. Anything like this needs to end up with an external API which looks the same whether the work is done via one thread or the other. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
