From owner-cvs-all  Tue Nov 30 18: 9:38 1999
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From: Kirk McKusick <mckusick@FreeBSD.org>
Date: Tue, 30 Nov 1999 18:09:31 -0800 (PST)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/sys mount.h src/sys/kern vfs_bio.c
         src/sys/miscfs/specfs spec_vnops.c
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mckusick    1999/11/30 18:09:31 PST

  Modified files:
    sys/sys              mount.h 
    sys/kern             vfs_bio.c 
    sys/miscfs/specfs    spec_vnops.c 
  Log:
  Collect read and write counts for filesystems. This new code
  drops the counting in bwrite and puts it all in spec_strategy.
  I did some tests and verified that the counts collected for writes
  in spec_strategy is identical to the counts that we previously
  collected in bwrite. We now also get read counts (async reads
  come from requests for read-ahead blocks). Note that you need
  to compile a new version of mount to get the read counts printed
  out. The old mount binary is completely compatible, the only
  reason to install a new mount is to get the read counts printed.
  
  Submitted by:	Craig A Soules <soules+@andrew.cmu.edu>
  Reviewed by:	Kirk McKusick <mckusick@mckusick.com>
  
  Revision  Changes    Path
  1.85      +7 -2      src/sys/sys/mount.h
  1.237     +1 -21     src/sys/kern/vfs_bio.c
  1.129     +22 -1     src/sys/miscfs/specfs/spec_vnops.c



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