Memory seems likely. On the E5 php 5.6 in top we see sys at 15%. On the E3 php 5.6 in top we see sys at 7%. On the E5 php 7 in top we see sys at 13%. We are

Memory seems likely. On the E5 php 5.6 in top we see sys at 15%. On the E3 php 5.6 in top we see sys at 7%. On the E5 php 7 in top we see sys at 13%. We are exploring memory perf more now.