Maybe the problem is the use of Atomic CPU. I'll try to use Timing one, and post the results soon.
Thanks. Matheus 2015-03-25 21:38 GMT-03:00 Matheus Alcântara Souza <[email protected]>: > Hi Andreas, > > The workloads are the same. I am using the Parsec stuff, by the way. > > The number of instructions (sim_ticks) are also the same. > > I'm using the default CPU (I guess it is atomic), no O3. > > I did not change the latency for the different cache sizes. But the > question is if the cache miss rate should affect the time (more misses - > small caches - means more time, right?). If I increase the latency of > bigger caches, the behavior probably will be "more time spent with bigger > caches", the opposite. > > Sorry if the text is confuse. > > Than you! > Em 25/03/2015 20:41, "Andreas Hansson" <[email protected]> escreveu: > >> Hi Matheus, >> >> Are you dumping stats (or exiting) after some specific number of >> instructions (I.e. are you doing the same amount of work)? Also, if you are >> using the default o3 configuration it is very aggressive, so perhaps the >> latency can be hidden? >> >> Andreas >> >> From: Matheus Alcântara Souza <[email protected]> >> Reply-To: gem5 users mailing list <[email protected]> >> Date: Wednesday, 25 March 2015 23:26 >> To: gem5 users mailing list <[email protected]> >> Subject: [gem5-users] Miss rate douby >> >> Hi all, >> >> Consider two gem5 simulation enviroments, one with an l2 cache of size >> 2048kB, and the other with the same parameters, but a smaller l2 cache of >> 256kB. >> >> I used X86 with fs.py, with Classic Memory System (no Ruby). The >> results showed an increase in l2 overall miss rate, if the cache is >> smaller. But the sim_seconds remains the same. >> >> Is it normal? Anyone have suggestions about what to check? >> >> Best, >> Matheus Alcântara Souza >> >> -- IMPORTANT NOTICE: The contents of this email and any attachments are >> confidential and may also be privileged. If you are not the intended >> recipient, please notify the sender immediately and do not disclose the >> contents to any other person, use it for any purpose, or store or copy the >> information in any medium. Thank you. >> >> ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, >> Registered in England & Wales, Company No: 2557590 >> ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, >> Registered in England & Wales, Company No: 2548782 >> >> _______________________________________________ >> gem5-users mailing list >> [email protected] >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >> > -- Atenciosamente, Matheus Alcântara Souza
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