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From: Alexander Motin <mav@FreeBSD.org>
Date: Wed, 16 Jun 2010 15:09:45 +0000 (UTC)
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Subject: cvs commit: src/usr.sbin/powerd powerd.c
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mav         2010-06-16 15:09:45 UTC

  FreeBSD src repository

  Modified files:
    usr.sbin/powerd      powerd.c 
  Log:
  SVN rev 209234 on 2010-06-16 15:09:45Z by mav
  
  Freq sysctls are quite heavy due to set of malloc()/free() calls. Avoid
  reading current frequency on every period. Instead do it only after
  changing and periodically from time to time if somebody else change it.
  
  Also dynamically decrease sampling frequency up to 4 times on inactivity,
  
  Revision  Changes    Path
  1.29      +21 -9     src/usr.sbin/powerd/powerd.c