I am doing some scale test on Routeflow. Currently, I found that the bottleneck for large scale network is MongoDB.
I test a linear topology with 29 switches (S1-S2-S3-....-S25-S26), OSPF only.
I run test in VMworkstation Pro 12 with Ubuntu 12.04.5 LTS
CPU: Intel(R) Core(TM) i7-4710HQ CPU @ 2.50GHz * 8 core
MongoDB version : 2.4
The route table is successfully established on rfvm but ping cannot reach destiny.
I check the mongotop, mongostat and iostat and found the query latency is always 10000ms+ so I think it is because concurrency of MongoDB overloads the CPU.
I am wondering if there is any solution to solve this to reduce the hardware requirement of routeflow.