When I specify 1000 NFS ops/sec in the sfs_nfs_rc, the results report only 996 NFS ops/sec requested, why is it less?
The sfs_nfs_rc file specifies the total number of NFS ops/sec across all of the clients used. Because the benchmark only allows specifying an even number of NFS ops/sec, the actual requested ops/ sec may be less due to rounding down. For example, 1000 NFS ops/sec requested over 6 clients will result in each client generating 166 NFS ops/sec for an aggregate of 996 NFS ops/sec.