Date: Mon, 14 Oct 2013 19:22:44 +0200 From: Carlos Jacobo Puga Medina <cjpugmed@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: Tuning /etc/sysctl.conf Message-ID: <CAHHLbRP==zqi=L6x-rjC4XShU09K_fVDuxUtVBMBXX_-7eNQyA@mail.gmail.com> In-Reply-To: <CAHHLbRPuJy7bMw0fzcq_zTr9GxGqsZpbz_%2BpDgjgRt4QwJKvYw@mail.gmail.com> References: <CAHHLbRMzNtGWAg1DGh405d5BVzORMDE-qC9qts%2BxzbUmAWtgew@mail.gmail.com> <CAHHLbRPuJy7bMw0fzcq_zTr9GxGqsZpbz_%2BpDgjgRt4QwJKvYw@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi Steve, I use it as a paticular desktop PC. Well, if you need more details about it, please, let me know. What do you think about current tuning? Thanks --CJPM 2013/10/14 Carlos Jacobo Puga Medina <cjpugmed@gmail.com> > Mmm... just a correction in /etc/sysctl.conf, it seems that by mistake > I've copied a website link into the file. Sorry, it was a copy-paste error > :) > > % cat /etc/sysctl.conf > # $FreeBSD: release/9.2.0/etc/sysctl.conf 112200 2003-03-13 18:43:50Z mux $ > # > # This file is read when going to multi-user and its contents piped thru > # ``sysctl'' to adjust kernel values. ``man 5 sysctl.conf'' for details. > # > > # Uncomment this to prevent users from seeing information about processes > that > # are being run under another UID. > #security.bsd.see_other_uids=0 > vfs.usermount=1 > hw.snd.default_unit=2 > kern.ipc.maxsockbuf=16777216 > kern.ipc.nmbclusters=32768 > kern.ipc.shm_allow_removed=1 > kern.ipc.somaxconn=8192 > kern.maxfiles=65536 > kern.maxfilesperproc=32768 > net.inet.tcp.blackhole=2 > net.inet.tcp.delayed_ack=0 > net.inet.tcp.path_mtu_discovery=0 > net.inet.tcp.recvbuf_auto=1 > net.inet.tcp.recvbuf_inc=16384 > net.inet.tcp.recvbuf_max=16777216 > net.inet.tcp.recvspace=65536 > net.inet.tcp.rfc1323=1 > net.inet.tcp.sendbuf_auto=1 > net.inet.tcp.sendbuf_inc=8192 > net.inet.tcp.sendspace=65536 > net.inet.udp.blackhole=1 > net.inet.udp.maxdgram=57344 > net.inet.udp.recvspace=65536 > net.local.stream.recvspace=65536 > net.local.stream.sendspace=65536 > net.inet.tcp.sendbuf_max=16777216 > net.inet.ip.random_id=1 > > # Allow for up 2 GB of wired memory. > vm.max_wired=524288 > > > > 2013/10/14 Carlos Jacobo Puga Medina <cjpugmed@gmail.com> > >> Hi people, >> >> I'm very interested to tuning /etc/sysctl.conf according to the >> specifications of my PC. I've been reading some guides [1], tutorials >> [2-3], Q&A [4] and the FreeBSD Handbook's related section 12.12 Tuning with >> sysctl(8), but I think it's much more convenient if I contrast it with >> other examples or experienced users. >> >> Here is my relevant info outputs for help to improve the sysctl(8) >> variables. >> >> % uname -a >> FreeBSD freebsd 9.2-RELEASE FreeBSD 9.2-RELEASE #0 r255898: Fri Sep 27 >> 03:52:52 UTC 2013 root@bake.isc.freebsd.org:/usr/obj/usr/src/sys/GENERIC >> i386 >> >> % dmesg | grep CPU >> CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz (2394.06-MHz 686-class CPU) >> cpu0: <ACPI CPU> on acpi0 >> p4tcc0: <CPU Frequency Thermal Control> on cpu0 >> >> % dmesg | grep memory >> real memory = 2147483648 (2048 MB) >> avail memory = 2082701312 (1986 MB) >> >> % pciconf -lvv | grep -n2 Ethernet >> 41-sis0@pci0:0:4:0: class=0x020000 card=0x80a71043 chip=0x09001039 >> rev=0x91 hdr=0x00 >> 42- vendor = 'Silicon Integrated Systems [SiS]' >> 43: device = 'SiS900 PCI Fast Ethernet' >> 44- class = network >> 45- subclass = ethernet >> >> My /etc/sysctl.conf >> >> # $FreeBSD: release/9.2.0/etc/sysctl.conf 112200 2003-03-13 18:43:50Z mux >> $ >> # >> # This file is read when going to multi-user and its contents piped thru >> # ``sysctl'' to adjust kernel values. ``man 5 sysctl.conf'' for details. >> # >> >> # Uncomment this to prevent users from seeing information about processes >> that >> # are being run under another UID. >> #security.bsd.see_other_uids=0 >> vfs.usermount=1 >> hw.snd.default_unit=2 >> kern.ipc.maxsockbuf=16777216 >> kern.ipc.nmbclusters=32768 >> kern.ipc.shm_allow_removed=1 >> kern.ipc.somaxconn=8192 >> kern.maxfiles=65536 >> kern.maxfilesperproc=32768 >> net.inet.tcp.blackhole=2 >> net.inet.tcp.delayed_ack=0 >> net.inet.tcp.path_mtu_discovery=0 >> net.inet.tcp.recvbuf_auto=1 >> net.inet.tcp.recvbuf_inc=16384 >> net.inet.tcp.recvbuf_max=16777216 >> net.inet.tcp.recvspace=65536 >> net.inet.tcp.rfc1323=1 >> net.inet.tcp.sendbuf_auto=1 >> net.inet.tcp.sendbuf_inc=8192 >> net.inet.tcp.sendspace=65536 >> net.inet.udp.blackhole=1 >> net.inet.udp.maxdgram=57344 >> net.inet.udp.recvspace=65536 >> net.local.stream.recvspace=65536 >> net.local.stream.sendspace=65536 >> net.inet.tcp.sendbuf_max=16777216 >> net.inet.ip.random_id=1 >> >> http://serverfault.com/questions/64356/freebsd-performance-tuning-sysctls-loader-conf-kernel >> # Allow for up 2 GB of wired memory. >> vm.max_wired=524288 >> >> I will appreciate any input about the subject. >> --CJPM >> >> [1] http://harryd71.blogspot.com.es/2008/10/tuning-freenas-zfs.html >> [2] https://wiki.freebsd.org/SystemTuning#SYSCTL_TUNING >> [3] https://wiki.freebsd.org/NetworkPerformanceTuning >> [4] >> http://serverfault.com/questions/64356/freebsd-performance-tuning-sysctls-loader-conf-kernel >> > >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAHHLbRP==zqi=L6x-rjC4XShU09K_fVDuxUtVBMBXX_-7eNQyA>