So my server tps has been stable above 19tps for a month or more besides for worldedits and such. And this morning I felt a lag spike and found my tps down to 14 tps then it took about a few minutes to recover. I was able to get a short timings of the lag spike and it showwed this http://timings.aikar.co/?url=11376565 The only thing i changed today was i updated to the new 1.8.6 spigot... I looked in the logs and only a few basic essentials commands were used during the lag spike. The timings did not show the lag spike to be from any plugins. But still from a command. Very odd. Changing back to a 1.8.3 spigot build from now.