Date: Sun, 18 Apr 1999 18:43:12 +0200 From: Andre Albsmeier <andre.albsmeier@mchp.siemens.de> To: John Baldwin <jobaldwi@vt.edu> Cc: Donald Wilde <dwilde1@thuntek.net>, freebsd-chat@FreeBSD.ORG, Dave Rossow <dave@dreksys.com>, jgrosch@mooseriver.com Subject: Re: SETI on FreeBSD Message-ID: <19990418184312.A98865@internal> In-Reply-To: <XFMail.990418120511.jobaldwi@vt.edu>; from John Baldwin on Sun, Apr 18, 1999 at 12:05:11PM -0400 References: <3719DFF0.DD15987@thuntek.net> <XFMail.990418120511.jobaldwi@vt.edu>
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On Sun, 18-Apr-1999 at 12:05:11 -0400, John Baldwin wrote: > > On 18-Apr-99 Donald Wilde wrote: > > Josef Grosch wrote: > >> > >> On Sat, Apr 17, 1999 at 01:13:05PM -0700, Dave Rossow wrote: > >> > Anybody know how CPU intensive the SETI app is? I love to run it on > > > > [snip] > >> CPU states: 8.9% user, 86.0% nice, 2.7% system, 2.3% interrupt, 0.0% > >> idle > >> Mem: 84M Active, 12M Inact, 18M Wired, 5804K Cache, 8340K Buf, 3520K Free > >> Swap: 256M Total, 30M Used, 226M Free, 12% Inuse > >> > >> PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND > >> 49801 jgrosch 92 1 15036K 14532K RUN 25.9H 91.41% 91.41% setiathome > > > >> Any questions ? > >> > >> Josef > >> > >> -- > > In short, the SETI program will use everything that's left over, same > > with the RC5 client. You can set your 'niceness' to minimize its effect > > on your system. > > I asssume that if you set it to run at an idle priority ( man idprio ) it has > virtually no impact on the system. OTOH, if you run it at a niceness of 20, it Unfortunately, it has. I made the observation that, for example, nfs server performance goes down dramatically when a cpu intensive job is run on the machine even with idprio. I was explained that this is due to the fact that FreeBSD isn't a realtime operating system. You can find more about this discussion in the mailing lists; look for rc5 and idle priority, IIRC. -Andre > can still have some impact because it always runs at least a little. With > idprio it seems to only run when the system is truly idle. Granted, my > experience is with the RC5 client, but the concepts should be the same for > seti@home as well. > > > -- > > Don Wilde "Bringing the Internet to everyone!" > > Wilde Media > > 1380 Rio Rancho Blvd. SE #117 voice: 505-771-0709 > > Rio Rancho, New Mexico 87124 e-mail: dwilde1@thuntek.net > > --- > > John Baldwin <jobaldwi@vt.edu> -- http://members.freedomnet.com/~jbaldwin/ > PGP Key: http://members.freedomnet.com/~jbaldwin/pgpkey.asc > "Power Users Use the Power to Serve!" - http://www.freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message
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