916 False-sharing in TCP hash buckets, plus size increase
        (originally Joyent OS-299 tcp_bindi() hash lock contention affects
        TCP client performance)

*** 18,27 ****
--- 18,28 ----
   *
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+  * Copyright (c) 2011, Joyent Inc. All rights reserved.
   */
  
  #ifndef _INET_TCP_IMPL_H
  #define _INET_TCP_IMPL_H
  
*** 53,63 ****
  
  /*
   * Bind hash list size and has function.  It has to be a power of 2 for
   * hashing.
   */
! #define TCP_BIND_FANOUT_SIZE    512
  #define TCP_BIND_HASH(lport) (ntohs(lport) & (TCP_BIND_FANOUT_SIZE - 1))
  
  /*
   * This implementation follows the 4.3BSD interpretation of the urgent
   * pointer and not RFC 1122. Switching to RFC 1122 behavior would cause
--- 54,64 ----
  
  /*
   * Bind hash list size and has function.  It has to be a power of 2 for
   * hashing.
   */
! #define TCP_BIND_FANOUT_SIZE    1024
  #define TCP_BIND_HASH(lport) (ntohs(lport) & (TCP_BIND_FANOUT_SIZE - 1))
  
  /*
   * This implementation follows the 4.3BSD interpretation of the urgent
   * pointer and not RFC 1122. Switching to RFC 1122 behavior would cause