Date: Thu, 4 Oct 2007 16:32:01 +0200 (CEST) From: Oliver Fromme <olli@lurza.secnetix.de> To: freebsd-stable@FreeBSD.ORG, matrix@itlegion.ru Subject: Re: Quation about HZ kernel option Message-ID: <200710041432.l94EW16Q061368@lurza.secnetix.de> In-Reply-To: <027301c80688$94ec6b60$0c00a8c0@Artem>
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Artem Kuchin wrote: > Oliver Fromme wrote: > > Artem Kuchin wrote: > > > What value of HZ option would you recommend > > > for a hosting (web) server with a lot of processes > > > (about 900) and polling off (as decided from previous > > > discussion polling is useless in > > > this situation). > > > > In that case, I would recommend not to override the > > default at all (which is 1000). > > Umm.. default is 100 (one hundred), i think. No, the default is 1000 for quite a few years. Well, except on the alpha platform, but I guess you're on either i386 or amd64, not alpha. Quote from src/sys/kern/subr_param.c: #ifndef HZ # if defined(__amd64__) || defined(__i386__) || defined(__ia64__) || defined(__sparc64__) # define HZ 1000 # else # define HZ 100 # endif #endif Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd Passwords are like underwear. You don't share them, you don't hang them on your monitor or under your keyboard, you don't email them, or put them on a web site, and you must change them very often.
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