listening sockets as non sockets

[Gleb Smirnoff]

On Tue, Feb 21, 2017 at 09:58:45AM +0100, Julien Charbon wrote:
J> > T> 1) The patch worked pretty okay, but the idea of separate file type is
J> > T>    abandoned. With current filedescriptor code it is almost impossible
J> > T>    to racelessly switch fileops and f_data.
J> > T>    For more details read the commit message, URL below.
J> > T> 
J> > T> 2) I moved the work to git. It allows for easier code sharing.
J> > T> 
J> > T> https://github.com/glebius/FreeBSD/commit/3a52df429889ea9c6e61013f6913aad95939f159
J> > 
J> > The current 'solisten' branch at https://github.com/glebius/FreeBSD has
J> > been running successfully for 48 hours at Netflix. But as mentioned before,
J> > our connection rate is pretty low.
J> > 
J> > So, testing from Julien and Hiren will be much appreciated.
J> 
J>  Sound good, I will have spare time to get performance results on our
J> side w/ and w/o your change before the end of this week.

Thanks, Julien! Looking forward for your results. Meanwhile, the code has
been running for a week on a single Netflix box. And for 24 hours on a
set of boxes as A/B test against non-patched code. Since our connection
rate is low, and we never seen accept_mtx to be a major problem in our
profiling, the A/B test didn't show any statistically significant
improvements. But my biased eye of course sees some improvements in the
graphs :)

-- 
Totus tuus, Glebius.