Hello, Did you check the results to see if it is not bugging? What about cache miss rate?
In my FS simulations, I usually insert 10s of sleep, because Linux may keep cpus busy with background stuff. Anyway, almost 100% of idleness is quite strange. Regards, -- Fernando A. Endo, PhD student and researcher Université de Grenoble, UJF France 2015-03-05 17:15 GMT+01:00 Jianghao via gem5-users <[email protected]>: > I followed the instruction from utexas to download full system image and > parsec binary. > Then start a test run with command : > > * build/ALPHA/gem5.opt configs/example/fs.py > --disk-image=/home/jo/my-gem5/full-sy > stem/parsec/linux-parsec-2-1-m5-with-test-inputs.img > --kernel=/home/jo/my-gem5/f ull-system/parsec/vmlinux_2.6.27-gcc_4.3.4 -n 4 > --script=/home/jo/my-gem5/full-s ystem/parsec/blackscholes_4c_simmedium.rcS > --cpu-type=timing --caches --l2cache * > In rcS file > > > * #!/bin/sh cd /parsec/install/bin /sbin/m5 dumpstats /sbin/m5 resetstats > ./blackscholes 4 /parsec/install/inputs/blackscholes/in_16K.txt > /parsec/install/ inputs/blackscholes/prices.txt echo "Done :D" /sbin/m5 > exit When I took a look of output status file*, all 4 cpus are idle for > over 96% of time(idle_fraction). Is this result correct or I did something > wrong in any step? Thanks > > > * ---------- Begin Simulation Statistics ---------- 3 sim_seconds > 2.398727 # Number > of seconds simulated 4 sim_ticks > 2398726853500 # Number of ticks simulated 5 > final_tick 2398726853500 > # Number of ticks from beginning of simulation > (restored from check points and never reset) 6 sim_freq > 1000000000000 # > Frequency of simulated ticks system.cpu0.num_idle_cycles > 4504835699 <4504835699>.998122 # Number of idle > cycles 390 system.cpu0.num_busy_cycles 292618007.001878 > # Number of busy cycles 391 > system.cpu0.not_idle_fraction 0.060994 > # Percentage of non-idle cycles 392 > system.cpu0.idle_fraction 0.939006 > # Percentage of idle cycles > system.cpu1.num_idle_cycles 4780190186.421450 > # Number of idle cycles 800 > system.cpu1.num_busy_cycles 16689718.578550 > # Number of busy cycles 801 > system.cpu1.not_idle_fraction 0.003479 > # Percentage of non-idle cycles 802 > system.cpu1.idle_fraction 0.996521 > # Percentage of idle cycles > system.cpu2.num_idle_cycles 4700275530.101442 > # Number of idle cycles 1196 > system.cpu2.num_busy_cycles 96607855.898558 > # Number of busy cycles 1197 > system.cpu2.not_idle_fraction 0.020140 > # Percentage of non-idle cycles 1198 > system.cpu2.idle_fraction 0.979860 > # Percentage of idle cycles > system.cpu3.num_idle_cycles 4746440794.404318 > # Number of idle cycles 1617 > system.cpu3.num_busy_cycles 50441814.595682 > # Number of busy cycles 1618 > system.cpu3.not_idle_fraction 0.010516 > # Percentage of non-idle cycles 1619 > system.cpu3.idle_fraction 0.989484 > # Percentage of idle cycles * > > > _______________________________________________ > gem5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >
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