[rabbitmq-discuss] Odd performance testing result
tlhuang at 800best.com
Fri Jan 24 04:28:54 GMT 2014
My test result list below. The odd thing is why performance of machine-2 is worse than machine-3?
32 cpu cores(Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz)
8 cpu cores,
The based physical machine is the same as machine-1, and it is the only vmware machine there.
4 cpu cores(Intel(R) Xeon(R) CPU E5-2650 2.0GHz)
The performance of based physical machine is worse than machine-1.
The test client is the same, 5 queues, 5 producers and 10 consumer each queue. The version of Rabbitmq is 3.2.2.
I have tried below testing, but the result is the same.
1. Clone the whole machine-3 to machine2
2. Save mnesia to SAS disk
3. Save mnesia to /dev/shm
During testing, I find the cpu us of machine-3 can reach to 90, but it is only about 50 in machine-2. It seems the message persistence stage in machine-2 is very slow. Can someone help me to figure out why.
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