Hi Andreas, Thank you for your reply.
I used MI protocol by using : scons build/ALPHA/gem5.opt PROTOCOL=MI_example RUBY=True I am using ruby_fs system and command used is: ./build/ALPHA/gem5.opt configs/example/ruby_fs.py -n 2 --l1i_size=32kB --l1d_size=32kB --l2_size=8MB --num-l2caches=8 -b barnes Changed protocol from MI_example to MESI_Cmp_Directory and again executed ALPHA ruby_fs using the same command. Only parameter I have changed is coherency protocol and I git the difference in number of instructions simulated. Where I find more information about usage of LOCK/UNLOCK operations used by cache coherency protocol in gem5. Thank You, Geeta On Tue, Jun 10, 2014 at 1:09 PM, Andreas Hansson <[email protected]> wrote: > Hi Geeta, > > This has been discussed quite a few times, so I’d suggest you do a > search on the archive. > > In short, there are a number of reasons this happens, and without > knowing more about your use-case (full system or not, etc), I would guess > the reason is simply differences in acquiring/releasing locks. > > Andreas > > From: Geeta Patil via gem5-users <[email protected]> > Reply-To: Geeta Patil <[email protected]>, gem5 users > mailing list <[email protected]> > Date: Tuesday, 10 June 2014 06:24 > To: "[email protected]" <[email protected]> > Subject: [gem5-users] Cache Coherency Statistic Output > > Hi All, > > I have executed barens(splash2 benchmark program) using MI and MESI > protocol. > > I am finding number of instructions simulated. When I checked the > statistic file, number of instructions simulated using MI protocol are > 12184940560 and number of instructions simulated using MI protocol are > 12174567882. > > I am not able to understand when I am executing same program why is > there difference of 10372678 between number of instructions simulated. > > I want to understand why there is difference. > > Can any body help me. > > Thank You, > Geeta > > > > -- 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 >
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