From owner-freebsd-current Mon Mar 12 8:41: 3 2001 Delivered-To: freebsd-current@freebsd.org Received: from blizzard.sabbo.net (ns.sabbo.net [193.193.218.18]) by hub.freebsd.org (Postfix) with ESMTP id D30AD37B718 for ; Mon, 12 Mar 2001 08:40:54 -0800 (PST) (envelope-from sobomax@FreeBSD.org) Received: from vic.sabbo.net (root@vic.sabbo.net [193.193.218.112]) by blizzard.sabbo.net (8.10.1/8.10.1) with ESMTP id f2CGebJ16353; Mon, 12 Mar 2001 18:40:45 +0200 Received: from FreeBSD.org (big_brother.vega.com [192.168.1.1]) by vic.sabbo.net (8.11.3/8.11.2) with ESMTP id f2CGeae01241; Mon, 12 Mar 2001 18:40:36 +0200 (EET) (envelope-from sobomax@FreeBSD.org) Message-ID: <3AACFC01.87F2FF5C@FreeBSD.org> Date: Mon, 12 Mar 2001 18:40:34 +0200 From: Maxim Sobolev Organization: Vega International Capital X-Mailer: Mozilla 4.76 [en] (WinNT; U) X-Accept-Language: uk,ru,en MIME-Version: 1.0 To: Mark Murray , current@FreeBSD.org Subject: Re: Ethernet entropy harvesting seriously pessimizes performance References: <3AAC8942.DB660B2C@FreeBSD.org> <200103120858.f2C8wkf88680@gratis.grondar.za> <3AAC9266.1CBB23E9@FreeBSD.org> Content-Type: text/plain; charset=koi8-r Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Maxim Sobolev wrote: > Mark Murray wrote: > > > > In addition to reported earlier general machine slowdown with > > > interrupt harvesting is turning on, ethernet entropy harvesting > > > seriously hammers network performance as well. Ftping big file over my > > > 10M network now about 15% slower with ethernet harvesting turning on. > > > > Even with the Rijndael code and kern.random.sys.burst=$SMALLNUMBER ?? > > I've not tried Rijndael code yet, do you think that it could make a noticeable > difference? As for kern.random.sys.burst=$SMALLNUMBER I think that it is your > task to tune defaults in such a way that it would not disturb even low-profile > users (i.e. would not cause any measureable performance degradation). Tuning > defaults with power users in mind is extremly bad idea - we are not an OS with > mininal configuration PIII-500/128MB. Have to admit that after updating my kernel all these and several other harvester-related problems are gone. Now there is no measureable difference in performance with harvesting turning on and off and mouse moves smothly without usual patch for scmouse.c. ;) Finally I can thank you for a good work Mark! -Maxim To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message