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From: Pawel Jakub Dawidek <pjd@FreeBSD.org>
Date: Tue, 25 Jul 2006 19:32:58 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
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Cc: 
Subject: cvs commit: src/sys/crypto/via padlock_cipher.c
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pjd         2006-07-25 19:32:58 UTC

  FreeBSD src repository

  Modified files:
    sys/crypto/via       padlock_cipher.c 
  Log:
  Avoid memory allocations when the given address is already 16 bytes aligned.
  Such an address can be used directly in padlock's AES.
  This improves speed of geli(8) significantly:
  
          # sysctl kern.geom.zero.clear=0
          # geli onetime -s 4096 gzero
          # dd if=/dev/gzero.eli of=/dev/null bs=1m count=1000
  
  Before: 113MB/s
  After:  203MB/s
  
  BTW. If sector size is set to 128kB, I can read at 276MB/s :)
  
  Revision  Changes    Path
  1.3       +51 -6     src/sys/crypto/via/padlock_cipher.c