Hello, I am running gem5 in syscall emulation mode and specifying the cache sizes. This appears to work as desired.
bpayne@bpayne-VirtualBox64:~/gem5$ build/X86/gem5.opt configs/example/se.py --clock=2.8GHz --l1d_size=32K --l1i_size=32K --l2_size=256K --l3_size=8192K -c tests/test-progs/hello/bin/x86/linux/hello gem5 Simulator System. http://gem5.org gem5 is copyrighted software; use the --copyright option for details. command line: build/X86/gem5.opt configs/example/se.py --clock=2.8GHz --l1d_size=32K --l1i_size=32K --l2_size=256K --l3_size=8192K -c tests/test-progs/hello/bin/x86/linux/hello Global frequency set at 1000000000000 ticks per second 0: system.remote_gdb.listener: listening for remote gdb #0 on port 7000 **** REAL SIMULATION **** info: Entering event queue @ 0. Starting simulation... warn: instruction 'fnstcw_Mw' unimplemented warn: instruction 'fldcw_Mw' unimplemented Hello world! hack: be nice to actually delete the event here Exiting @ tick 3907365 because target called exit() However, the same output is produced when I intentionally give invalid values for the cache size units: bpayne@bpayne-VirtualBox64:~/gem5$ build/X86/gem5.opt configs/example/se.py --clock=2.8GHz --l1d_size=32asdf --l1i_size=32qwer --l2_size=256K --l3_size=8192K -c tests/test-progs/hello/bin/x86/linux/hello gem5 Simulator System. http://gem5.org gem5 is copyrighted software; use the --copyright option for details. gem5 compiled Oct 16 2012 15:04:38 gem5 started Nov 1 2012 15:17:21 gem5 executing on bpayne-VirtualBox64 command line: build/X86/gem5.opt configs/example/se.py --clock=2.8GHz --l1d_size=32asdf --l1i_size=32qwer --l2_size=256K --l3_size=8192K -c tests/test-progs/hello/bin/x86/linux/hello Global frequency set at 1000000000000 ticks per second 0: system.remote_gdb.listener: listening for remote gdb #0 on port 7000 **** REAL SIMULATION **** info: Entering event queue @ 0. Starting simulation... warn: instruction 'fnstcw_Mw' unimplemented warn: instruction 'fldcw_Mw' unimplemented Hello world! hack: be nice to actually delete the event here Exiting @ tick 3907365 because target called exit() bpayne@bpayne-VirtualBox64:~/gem5$ Therefore I suspect the specified cache values are not actually being used. Is my concern valid? Why is this occuring? Kindly, Ben Payne http://mst.edu/~bhpxc9/ Laboratory for Physical Sciences http://www.lps.umd.edu/ _______________________________________________ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
