Date: Wed, 27 Jan 1999 17:16:33 -0500 (EST) From: "John S. Dyson" <dyson@iquest.net> To: dillon@apollo.backplane.com (Matthew Dillon) Cc: wes@softweyr.com, toasty@home.dragondata.com, hackers@FreeBSD.ORG Subject: Re: High Load cron patches - comments? Message-ID: <199901272216.RAA00419@y.dyson.net> In-Reply-To: <199901271703.JAA40222@apollo.backplane.com> from Matthew Dillon at "Jan 27, 99 09:03:26 am"
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Matthew Dillon said: > > : > :So this is why pmake drives our system load average up to 8-10 before > :dropping back down to the assigned limit of 5, huh? Maybe we should > :fix the load average computations as John suggested. > : > :Wes Peters Softweyr LLC > :http://www.softweyr.com/~softweyr wes@softweyr.com > > There's nothing wrong with the load average computation, it's a 1, 5, > and 15 minute pseudo-average just as advertised. What's wrong are the > programs that try to use it to regulate themselves. > Yep, I didn't really mean that the existing load average calculation be modified, but develop a better scheme for providing load regulation info to processes. To me, load average is mostly informational, and long term trend data. Lots of things can happen within the load average attack interval. I can develop some rather complete and lossless calculations that provide accurate and useful load indicators. In fact, I think that a generic load mgmt scheme might be useful. -- John | Never try to teach a pig to sing, dyson@iquest.net | it makes one look stupid jdyson@nc.com | and it irritates the pig. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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