On Thu, Dec 26, 2013 at 10:24:03AM -0500, David Ahern wrote:On 12/26/13, 10:14 AM, Frederic Weisbecker wrote:I was carrying that patch while working on perf-kvm-stat-live last
Fall. It does not solve the problem for live commands, so ended up
dropping it and going with local (to the command) hacks. I still
think for live commands getting a perf_clock timestamp at the start
of a round and using that as the flush time will work best.
Ok, but how would you fetch this perf clock timestamp, with an explicit read?
One option is exporting perf_clock to userspace.
Preferably a built-in option, https://lkml.org/lkml/2013/12/10/781,
but I can go the module route if I have to:
I see, that's one of the very verbose threads I've seen lately ;)