Date: Sun, 20 Jan 2002 11:11:02 +0100 From: Emre Bastuz <info@emre.de> To: freebsd-isp@FreeBSD.ORG Subject: Solaris vs. FreeBSD in High Traffic Environments Message-ID: <3C4A97B6.4070409@emre.de>
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Hi, despite the subject, this mail is not supposed to be a "what OS is better" kind of discussion :) Both are good. Period. I have just a couple of questions concerning the performance of those OSs when used for a high traffic webserver. I have recently moved a high traffic website from a Sun Sparc Solaris 5.8 X1 box to an Intel P3 1Ghz box with 1 Gig of RAM and FreeBSD 4.4. The machine got offline twice within 48 hours (the Solaris box had never crashed), thatīs why some tweeking on the kernel and other parameters was done. Since then the server is performing great. Question 1: Does anyone know the default values on a Solaris machine for the following kernel compilation parameters - maxusers 512 options NMBCLUSTERS=65536 and sysctl parameters - net.inet.tcp.blackhole=2 net.inet.udp.blackhole=1 net.inet.ip.rtexpire=2 net.inet.ip.rtminexpire=2 vfs.vmiodirenable=1 kern.ipc.somaxconn=4096 kern.maxfiles=65536 All those settings were obtained from various pages dealing with FreeBSD in hight traffic environments. I guess that Solaris has these settings up to high values by default, thatīs why the Solaris machine never crashed but FreeBSD did. Can anyone confirm this ? Question 2: The result of the 'top' command looks veeeeeeery different on Solaris and FreeBSD. When the Solaris box was running the webserver, the load was at about '300' - whereas FreeBSD seems to handle beautifully smooth at a load of '0.3'. Somehow this is too good to be true. Can anyone point out why thereīs such a huge difference ? Any major differences in the calculation of the load values on both systems ? Any hints are greatly appreciated ! Reagrds, Emre -- Emre Bastuz info@emre.de http://www.emre.de UIN: 561260 PGP Key ID: 0xAFAC77FD To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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