Hi All, I am trying to analyze the lock contention on the multi-threaded Linux kernel running on MARSS simulated multi-core processors. I have successfully built the simulator and run the ubuntu linux from the disk images from the MARSS website. I have also used public bridging to enable the virtual machine access from outside network. My questions are below:
1) Can MARSS can truly simulate threads in parallel so that it can simulate the contention? 2) When I try to run MARSS with large number of cores(e.g 32), the simulation is very slow since qemu emulates the cores sequentially. But the post here "http://article.gmane.org/gmane.comp.emulators.marss86/112/match=enable+kvm"; suggests to "enable KVM support in Marss so that for creating checkpoints users can use KVM for faster emulation". Hence I tried the following command line to enable KVM: $ 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 some one point whats wrong with my approach and how to enable KVM in marss? (Note: I built MARSS with debug enabled) Thanks for your time, karthik _______________________________________________ http://www.marss86.org Marss86-Devel mailing list [email protected] https://www.cs.binghamton.edu/mailman/listinfo/marss86-devel
