Quoting r. Sayantan Sur <[EMAIL PROTECTED]>: > Subject: Re: [openib-general] performance tests uploaded to contrib > > Michael, > > > Current results: > > > > I currently observe latency below 3.5 usec. > > > > Drop me a note if you find this useful. > > Thanks for putting this up on the contrib tree. I have run this > rdma_latency, and am getting around 3.35 us (without switch). > > Our platform is Dual Xeon EM64T with RH AS 4. Kernel version 2.6.11.7 > > Do you have any idea when a port of the popular `perf_main' will be > available? As more people try to use the Gen2 verbs, `perf_main' (or > something similar) can help people evaluate different IB operations and > also to have example code to use different features of IB. > > Thanks, > Sayantan. >
I dont plan to port the monolithic perf_main to gen2. Instead, I plan to upload a set of microbenchmarks each testing a specific feature: rdma latency/rc send latency/rdma bandwidth/rc send bandwidth etc. I hope that this will help achieve better code clarity than what we have in perf_main. What are the features you are most interested in? By the way, you can already see some example code in libibverbs/examples, although that is not necessarily benchmark-oriented. I used the code in pingpong.c as a starting point for rdma latency test, and it can be used with very little changes as rc send latency test. -- MST - Michael S. Tsirkin _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
