Hi Orangaede, I've seen a v8 benchmark run successfully to completion with the out-of-order model. That said it's possible that some part of your configuration is hitting a corner case that is causing issues. The various v8 benchmarks have different run times (i'm not sure which one you're talking about) and I'm not sure which version of gem5 you're using. Depending on how you have it compiled the instruction rate of the out-of-order cpu can be over 200kips, so this is a bit slower than I would expect.
Ali On Jan 9, 2013, at 8:46 AM, "Mr. Orangeade" <[email protected]> wrote: > Hey guys, > > I'm trying to run v8 benchmark (console) using gem5 (fs). > With the functional model everything seems to be fine. > Benchmark was executed correctly and I got all the required statistics in > about 15 minutes or so. > Then I wanted to switch to the performance model (arm_detailed) but got some > issues there. > > To estimate the running time I simply divided the total number of simulated > instructions I got from the functional model by the performance model's > instruction rate I got from the different benchmark (around 50k/s). That > shouldn't be absolutely correct but seems to be enough to get some estimation. > > This calculation gave me the running time around 24 hours which is fine. > Unfortunately around 2 weeks already passed but the benchmark didn't finish > yet. > It seems to me that something went wrong and the simulator is executing the > infinite loop or something (because even the trivial printf in the very > beginning of the benchmark was not printed yet). > > Did someone ever met the same behaviour with v8 benchmark or some other > workload? > What is the best way to debug this issue? Printing pc seems to be very ugly > idea because the benchmark is huge. > Is the instruction rate (50k/s) I got is correct for the performance model? > > Many thanks, > Orangeade > _______________________________________________ > gem5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
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