Date: Tue, 22 May 2007 10:30:56 +0300 From: Diomidis Spinellis <dds@aueb.gr> To: freebsd-arch@freebsd.org, freebsd-hackers@freebsd.org, freebsd-current@freebsd.org Subject: Process accounting changes Message-ID: <46529C30.2090906@aueb.gr> In-Reply-To: <463B581E.6070804@aueb.gr> References: <461958CC.4040804@aueb.gr> <20070414170218.M76326@fledge.watson.org> <4621E826.6050306@aueb.gr> <20070415105157.J84174@fledge.watson.org> <46231C64.9010707@aueb.gr> <20070419101815.Y2913@fledge.watson.org> <4627A6C3.2070409@aueb.gr> <20070419212253.L2913@fledge.watson.org> <4627E311.6080500@aueb.gr> <463B581E.6070804@aueb.gr>
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The accounting changes discussed in arch@ about a month ago are now part of the CURRENT tree. The changes increase the precision of the time values stored in acct(5) from 15ms (which for most commands was too large) to 1 microsecond. The userland programs sa(8) and lastcomm(1) provide backward compatibility with existing record and file formats (including accounting files including both old and new records); regression tests are included to verify this. The changes have been tested on i386, amd64, and (partly) sparc64; please drop me an email if you suspect a problem with your particular setup. Many thanks to Garance A Drosehn, Bruce Evans, Peter Jeremy, Poul-Henning Kamp, Sam Leffler, Rick C. Petty, Erik Trulsson, and Robert Watson for their earlier comments; to Eric Anderson, Carl Johan Gustavsson, Larry Rosenman, and Derek Tattersall for responding to my hackers@ request with test data, and especially to Larry Rosenman for arranging access to an additional test machine. Diomidis Spinellis - http://www.spinellis.gr
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