Seastar Framework
Copyright 2015 Cloudius Systems

This works contains software from the OSv project (http://osv.io), licensed
under the BSD license.

This work contains software from the DPDK project (http://dpdk.org), licensed
under the BSD license.  The software is under the dpdk/ directory.

This work contains software from the Android Open Source Project,
licensed under the Apache2 license.
The software is in the include/seastar/util/sampler.hh file.