Hi Ahmad,
When the stats are reset they should also be dumped, so I don’t think that’s
the issue here. If you want temporal memory-system stats, you should not use
Atomic though, as the only information you will get is the bytes read/written.
I suggest to stick to the O3 CPU once you reach the ROI.
The prechargeAllPercent seems completely off in your example (558.79), and I’ll
have a look at the code. Perhaps this is also a result of the atomic/o3
switching.
Andreas
From: Ahmad Hassan <[email protected]<mailto:[email protected]>>
Reply-To: gem5 users mailing list
<[email protected]<mailto:[email protected]>>
Date: Monday, 20 January 2014 12:00
To: gem5 users mailing list <[email protected]<mailto:[email protected]>>
Subject: [gem5-users] GEM5 power stats for Micron spreadsheet
Hi,
I am using gem5 rev 9975 that implements the stats for calculating power
through micron spreadsheet. For my benchmark, I get the following numbers:
system.mem_ctrls.busUtilRead 0.07 #Data bus utilization
in percentage for reads
system.mem_ctrls.busUtilWrite 0.05 #Data bus
utilization in percentage for writes
system.mem_ctrls.pageHitRate 89.04 #Row buffer hit rate,
read and write combined
system.mem_ctrls.prechargeAllPercent 558.79 #Percentage of time for
which DRAM has all the banks in precharge state
The bus utilization number are really low as per my expectations. i am using
sampling. is it possible that the stats are getting reset when CPU switches
back and forth between O3 and Atomic. I use '--repeat-switch=10000000'
kind Regards, Ahmad
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