Hi all,
I'm working with a system using two AMD Opteron 6172 processors, which have
6 cores in a package.
(linux 2.6.29, x86_64, pfmon-3.9)
I want to know the possibilities of per-core memory access count.
More specifically, with this perfmon2 tool,
I want to count memory access of each core separately, especially the number
of read and write request.
For example, assume that 6 cores run 6 processes concurrently.
I want to know the number of memory read and write generated from each
cores.
If it is possible, I want to get results like following.
[core 1] 13
[core 2] 15
..
I used this command
# pfmon --system-wide -e memory_controller_requests:write_requests
--print-interval=1000 --cpu-list=0,7
But I can't get any result except this error message.
CPU7 error conflicting monitoring session
I found a thread
http://sourceforge.net/mailarchive/message.php?msg_id=68c6d53a0910301523n4ec
a6060k34f7d14a46e2baa%40mail.gmail.com
What I understand is that there is no method to count the number of memory
access for each core separately.
But it can be possible with the Intel Xeon processors.
My questions are:
1) Is it impossible to count the number of memory access generated by
each core? (with Opteron processor)
2) Is it possible with Xeon processors?
3) If it is unavailable, is there any software method to get such
information?
4) If it is available, how can I get such information?
Please help me.
Thank you for your time.
Woomin Hwang
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