White Paper

2.1.38 nfs4_max_threads ........................................................................................................... 36
2.1.39 nfs4_max_transfer_size .................................................................................................... 37
2.1.40 nfs4_max_transfer_size_cots ............................................................................................ 38
2.1.41 nfs4_nra ........................................................................................................................ 40
2.1.42 nfs4_pathconf_disable_cache ........................................................................................... 41
2.1.43 nfs_enable_ufc_threshold ................................................................................................. 41
2.1.44 nfs3_ufc_threshold_percentage ......................................................................................... 42
2.1.45 nfs_ufc_threshold_percentage ........................................................................................... 43
2.1.46 nfs_enable_enhanced_commit .......................................................................................... 43
2.1.47 nfs3_max_commit_threads ............................................................................................... 44
2.1.48 nfs4_sfh_boost_search ..................................................................................................... 44
2.2 NFS Server Tunables ................................................................................................................ 45
2.2.1 nfs_exi_cache_time ........................................................................................................... 45
2.2.2 nfs_portmon ..................................................................................................................... 46
2.2.3 nfs2_srv_read_copyavoid .................................................................................................. 46
2.2.4 nfs3_do_readdirplus .......................................................................................................... 48
2.2.5 nfs3_srv_read_copyavoid .................................................................................................. 49
2.3 KRPC Client Tunables ............................................................................................................... 51
2.3.1 rpc_clnt_idle_timeout ......................................................................................................... 51
2.3.2 rpc_clnt_max_conns .......................................................................................................... 51
2.3.3 rpc_clnt_udpresvports ........................................................................................................ 52
2.4 KRPC Server Tunables .............................................................................................................. 54
2.4.1 rpc_svc_cltsmaxdupreqs .................................................................................................... 54
2.4.2 rpc_svc_cotsmaxdupreqs ................................................................................................... 55
2.4.3 rpc_svc_default_max_same_xprt ......................................................................................... 55
2.4.4 rpc_svc_idle_timeout ......................................................................................................... 56
2.4.5 rpc_svc_reducepoolcontention ........................................................................................... 57
2.4.6 rpc_svc_cpu_binding ......................................................................................................... 58
2.4.7 rpc_svc_preempt_enable ................................................................................................... 58
2.4.8 rpc_svc_preempt_threshold ................................................................................................ 58
2.5 KLM Tunable ........................................................................................................................... 58
2.5.1 klm_log_level ................................................................................................................... 59
Appendix A. Obsolete Tunables .......................................................................................................... 60