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To: stable@freebsd.org, current@freebsd.org
Subject: MBUF compatibility (recent commit to -stable)
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Date: Fri, 10 May 1996 09:08:23 -0500
From: Randy Terbush <randy@zyzzyva.com>
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After doing battle on this front for the past week, I just caught
this commit. Could someone comment on the effect (or hopefully lack
thereof) on driver code compiled using the old (revision 1.9)
code?  I'm specifically concerned about the ET drivers since
Dennis does not support -stable.

BTW - It seems that dennis uncovered something in his driver since
his latest test version has solved my MBUF growth problem.


------------------------------
From: Garrett Wollman <wollman>
Date: Wed, 8 May 1996 12:38:29 -0700 (PDT)
Subject: cvs commit:  src/sys/kern uipc_mbuf.c src/sys/sys mbuf.h

wollman     96/05/08 12:38:28

  Modified:    sys/kern  uipc_mbuf.c
               sys/sys   mbuf.h
  Log:
  Our new-old mbugf allocator.  This is actually something of a blast from
  the past, since it returns to the old system of allocating mbufs out of
  a private area rather than using the kernel malloc().  While this may seem
  like a backwards step to some, the new allocator is some 20% faster than
  the old one and has much better caching properties.
  
  Written by: John Wroclawski <jtw@lcs.mit.edu>
  
  Revision  Changes    Path
  1.20      +103 -1    src/sys/kern/uipc_mbuf.c
  1.15      +64 -28    src/sys/sys/mbuf.h

------------------------------