If you want to get really creative you can put a CommMonitor between the CPU
and the L1 caches (you can simply connect it between the CPU Data port and the
L1 D Cache). The CommMonitor will tell you exactly what you are looking for and
give you an ITT (inter transaction time) histogram even.
Hope that helps.
Andreas
From: Amin Farmahini <[email protected]<mailto:[email protected]>>
Reply-To: gem5 users mailing list
<[email protected]<mailto:[email protected]>>
Date: Tuesday, 10 December 2013 07:01
To: gem5 users mailing list <[email protected]<mailto:[email protected]>>
Subject: Re: [gem5-users] The frequency of memory requests being issued each
cycle
Count the number of cycles you issue a memory request in LSQ.
On Tue, Dec 10, 2013 at 12:41 AM, Yuhang Liu
<[email protected]<mailto:[email protected]>> wrote:
Thanks for your reply.
I know the number of loads and stores issued in a given period. But what I
really want to know is not this. I wonder how many cycles in which a new load
or store request is issued. This number cannot be got via dividing # the number
of loads and stores by # the number of cycles, since maybe more than one load
or store be issued in the same cycle.
Could you give some advice?
At 2013-12-10 13:40:43,"Amin Farmahini"
<[email protected]<mailto:[email protected]>> wrote:
If you are using O3, you can add some counters in LSQ to count the number of
loads and stores issued. That is fairly simple.
You may also take a look at stats file. You may be able to extract that
information from stats even w/o modifying the code.
Thanks,
Amin
On Mon, Dec 9, 2013 at 11:41 AM, Yuhang Liu
<[email protected]<mailto:[email protected]>> wrote:
Hi,
Is there a metric to show "the frequency of memory requests being issued each
cycle"?
That means, for example, in 10 cycles, there are 6 cycles in which there is a
new memory request be issued, then "the frequency of memory requests being
issued each cycle" is 60%.
How can I know it in GEM5 output?
John
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