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2011 Feb 10
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Problem with Memory Throughput Difference between Two Nodes(sockets)
...8.8 (dom0) on my machine (INTEL Xeon X5650,
Westemere, 12cores, 6cores per socket, 2sockets, 12MB L3,.. )
I figured out after running SPECCPU 2006 Libquantum benchmark that two nodes
have different throughput.
I set up 6vm on each node, and ran the workload in each VM.
VM in node1 got 1500sec exec time while VM in node2 got 1990sec exec time.
Previously, I also installed same xen version with 2.6.31 (dom0) pvops linux
kernel. At that time, there was no such problem in same exp configuration.
Currently, I''m suspecting underutilization of LLC cache since the lowered
do...