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From: Bosko Milekic <bmilekic@FreeBSD.org>
Date: Wed, 24 Jul 2002 08:11:24 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/kern subr_mbuf.c uipc_mbuf.c
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bmilekic    2002/07/24 08:11:24 PDT

  Modified files:
    sys/kern             subr_mbuf.c uipc_mbuf.c 
  Log:
  Move m_freem() from uipc_mbuf.c to subr_mbuf.c so it can take advantage
  of the inlines, like its cousin, m_free().  Also, make a small (first
  step?) optimisation of m_free() to use the MBP_PERSIST{,ENT} interface
  to hold the lock across frees when possible.  The thing is that right
  now, we can only do this easily for at most across one mbuf + one
  cluster free, as the comment mentions (it also explains why).  Anyway,
  some basic tests revealed a 5-10% overall improvement.  Some of the
  results can be found here:
  http://people.freebsd.org/~bmilekic/code/measure.txt
  
  Revision  Changes    Path
  1.23      +48 -0     src/sys/kern/subr_mbuf.c
  1.94      +0 -8      src/sys/kern/uipc_mbuf.c

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