1. 16 Feb, 2012 1 commit
    • Andy Adamson's avatar
      SUNRPC: add sending,pending queue and max slot to xprt stats · 15a45206
      Andy Adamson authored
      With static RPC slots, the xprt backlog queue stats were useful in showing
      when the transport (TCP) was starved by lack of RPC slots. The new dynamic
      RPC slot code, commit d9ba131d, always
      provides an RPC slot and so only uses the xprt backlog queue when the
      tcp_max_slot_table_entries value has been hit or when an allocation error
      occurs. All requests are now placed on the xprt sending or pending queue which
      need to be monitored for debugging.
      
      The max_slot stat shows the maximum number of dynamic RPC slots reached which is
      useful when debugging performance issues.
      
      Add the new fields at the end of the mountstats xprt stanza so that mountstats
      outputs the previous correct values and ignores the new fields. Bump
      NFS_IOSTATS_VERS.
      Signed-off-by: default avatarAndy Adamson <andros@netapp.com>
      Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
      15a45206
  2. 11 Mar, 2011 2 commits
  3. 03 Apr, 2009 1 commit
  4. 09 Jul, 2008 1 commit