On Wed, Sep 4, 2013 at 12:17 PM, John Stultz <john.stu...@linaro.org> wrote: > On Wed, Sep 4, 2013 at 2:18 AM, Arun Sharma <asha...@fb.com> wrote: >> A couple of years ago Andy posted this patch series: >> >> http://thread.gmane.org/gmane.linux.kernel/1233209/ >> >> These patches have been in use at facebook for a couple of years and along >> with a vDSO implementation of thread_cpu_time(), they have proven useful for >> our profilers. >> >> I didn't see any arguments against this patch series. Did I miss some >> discussion on the topic? > > (I've got a new email address, just fyi) > > So, looking at the thread, I think Richard brought up the issue that > the net performance gain with the new interface wasn't significant > after the optimizations were applied to both interfaces. > > If we're going to add a new interface that uses something other then a > timespec, we likely need to put some serious thought into that new > type, and see how it could be used across a number of syscalls. Some > of the discussion around dealing with the 2038 issue touched on this. > > But getting those optimizations to the existing interface merged would > be nice, though. Anyone want to resend the patch?
It's already in. See 5f293474c4c6c4dc2baaf2dfd486748b5986de76, etc. --Andy -- 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/
