Hello! I implemented a message passing subsystem -- AMP for our cluster file system--DCFS3, I want AMP to run over Infiniband, I designed it in kernel(verbs). when client writing file, my protocol is implemented by RDMA WRITE, and reading file by RDMA READ, but perf of AMP is less than my expectation. Single thread (1t) read is 215MB/s, 4t is 340MB/s. And I see that the read file perf of NFS/RDMA is close to 600MB/s (1t). I made use of FMR and All physical reg ..and scatter/gather, but why the perf of AMP is lower?
-- Dong Yang <[EMAIL PROTECTED]> Institute of Computing Technology, Chinese Academy of Sciences Address: National Research Center for Intelligent Computing Systems (NCIC), P.O. Box 2704, Beijing 100080, P.R. China Phone: +86-10-62601005 _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
