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RN3220 CPU upgrade -- Negligible effect??
I upgraded the processor of an RN3220 from an i3-3220 3.30GHz, which is dual-core 4-thread CPU, to a Xeon E3-1225 V2 @ 3.20GHz, a quad-core 4-thread CPU as comes in an RN4220 and sysbench shows almo...
OK, I'm not entirely sure what was going on. I upgraded a second one and got way better results. So I swapped the memory between the two and the first one now gave me the improved speed. Just to check, I swapped the memory back, and now they both perform like this:
Test execution summary:
total time: 2.5567s
total number of events: 10000
total time taken by event execution: 20.4385
per-request statistics:
min: 1.02ms
avg: 2.04ms
max: 28.60ms
approx. 95 percentile: 11.02msThreads fairness:
events (avg/stddev): 1250.0000/27.44
execution time (avg/stddev): 2.5548/0.00So, the memory must not have been seated well, even though dmidecode showed both banks properly. Since I swapped out the memory before the CPU, I suspect that the performance shown for the original processor is also bogus.
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