1. "Adding processor trace support to linux " https://lwn.net/Articles/648154/. "Adding processor trace support to linux " https://lwn.net/Articles/648154/.
2. "Apache cassandra " http://cassandra.apache.org/. "Apache cassandra " http://cassandra.apache.org/.
3. "Apache kafka " https://kafka.apache.org/powered-by. "Apache kafka " https://kafka.apache.org/powered-by.
4. "Apache tomcat " https://tomcat.apache.org/. "Apache tomcat " https://tomcat.apache.org/.
5. "Champsim " https://github.com/ChampSim/ChampSim. "Champsim " https://github.com/ChampSim/ChampSim.