Date: Fri, 7 Nov 1997 08:21:44 -0800 (PST) From: Archie Cobbs <archie@whistle.com> To: jandrese@vt.edu (Jason Andresen) Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Quantum size? Message-ID: <199711071621.IAA15074@bubba.whistle.com> In-Reply-To: <Pine.BSF.3.96.971106201126.592A-100000@jandrese.async.vt.edu> from Jason Andresen at "Nov 6, 97 08:12:47 pm"
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Jason Andresen writes: > On Thu, 6 Nov 1997, Doug Ambrisko wrote: > > ~~| I would like to know the quantum size of FreeBSD2.2.2. > ~~ > ~~I'm not sure when the change went in ... but it can be whatever you want > ~~(just not 0). Default is 10ms. We change it to make FreeBSD run more > ~~"batch-like". > ~~ > ~~% sysctl kern.quantum > ~~kern.quantum: 10 > ~~% > Not in 2.2.2-RELEASE > > %(2_~): uname -a > FreeBSD jandrese.async.vt.edu 2.2.2-RELEASE FreeBSD 2.2.2-RELEASE #0: Fri > Oct 10 17:00:31 EDT 1997 > jandrese@jandrese.async.vt.edu:/usr/src/sys/compile/NESSUS i386 > %(3_~): sysctl kern.quantum > sysctl: Unknown oid 'kern.quantum' > %1 (4_~): It's in 2.2.5 but not 2.2.2: > RCS file: /cvs/freebsd/src/sys/kern/kern_synch.c,v > Working file: kern_synch.c > head: 1.39 > symbolic names: > RELENG_2_2_5_RELEASE: 1.26.2.4 > RELENG_2_2_2_RELEASE: 1.26.2.1 > > revision 1.26.2.2 > date: 1997/08/08 23:42:56; author: julian; state: Exp; lines: +26 -2 > MFC: match rev 1.33 > Reviewed by: john Dyson (dyson@freebsd.org) > Obtained from: Whistle Communications production build > > Make the scheduling quantum tunable.. > Useful for BATCH oriented systems (e.g. web servers and ftp servers etc) > that do not do interactive work. -Archie ___________________________________________________________________________ Archie Cobbs * Whistle Communications, Inc. * http://www.whistle.com
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