Hi, I am trying to use MARlSS for analyzing lock contention in multi-threaded apps and in linux OS code. I have successfully built the simulator and able to simulate the cores. Some of the questions I have are:
1) When I try to run MARSS configured with large number of cores(e.g 32), the simulation is very slow. From the discussion here "http://article.gmane.org/gmane.comp.emulators.marss86/112/match=enable+kvm"; I get that atleast for creating checkpoints we can use KVM which will be much faster. But I do not understand where should we enable the KVM? I tried the following: $ qemu/qemu-system-x86_64 -enable-kvm -m [memory_size] -hda [path-to-qemu-disk-image] Then in qemu monitor mode I configured the simulator as follows: simconfig -run -machine private_L2 But shortly after the simulator starts I get the following error: qemu-system-x86_64: ptlsim/build/core/ooo-core/ooo-pipe.cpp:2054: int ooo::ReorderBufferEntry::commit(): Assertion `ctx.get_cs_eip() == uop.rip' failed. Can someone point me what I miss here and what Avadh was talking about enabling KVM? 2) From the mailing list discussion (http://www.mail-archive.com/marss86-devel%40cs.binghamton.edu/msg01882.html) I see that MARSS runs the cores concurrently. Hence I believe MARSS can simulate the lock contentions in both application & OS code needed for my research. Kindly let me know your comments for confirmation. Thanks for your time, karthik _______________________________________________ http://www.marss86.org Marss86-Devel mailing list [email protected] https://www.cs.binghamton.edu/mailman/listinfo/marss86-devel
