gem5 Simulator System. http://gem5.org gem5 is copyrighted software; use the --copyright option for details. gem5 compiled Jul 6 2015 10:35:34 gem5 started Jul 6 2015 10:39:43 gem5 executing on mustardseed.cs.wisc.edu command line: build/X86/gem5.opt -d build/X86/tests/opt/quick/se/03.learning-gem5/x86/linux/learning-gem5-p1-simple -re /afs/cs.wisc.edu/p/multifacet/users/powerjg/gem5-tutorial/gem5/tests/run.py build/X86/tests/opt/quick/se/03.learning-gem5/x86/linux/learning-gem5-p1-simple Global frequency set at 1000000000000 ticks per second Beginning simulation! info: Entering event queue @ 0. Starting simulation... Hello world! Exiting @ tick 445082000 because target called exit()