RDMA interconnect has been increasingly used in data centers, high performance computing, and cloud because it allows high throughput and low latency networking. However, the advantages of RDMA, such as kernel bypass and no CPU involvement, makes performance analysis related to RDMA difficult and complicated. In order to better understand the performance with applications using RDMA, we propose RDMAperf, a user space framework for RDMA profiling. RDMAperf helps users to understand time spent on performing and waiting RDMA requests. RDMAperf can also be a good supplement to exist off-CPU analysis tools, like wPerf.