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----- [<nowiki/>[[msg11504.html|Date Prev]]][<nowiki/>[[msg11506.html|Date Next]]][<nowiki/>[[msg11488.html|Thread Prev]]][<nowiki/>[[msg11511.html|Thread Next]]][<nowiki/>[[index.html#11505|Date Index]]][<nowiki/>[[threads.html#11505|Thread Index]]] <span id="vserver-cpuset-support-for-util-vserver"></span> = [Vserver] CPUSET support for util-vserver = ----- * '''From:''' Jan Rekorajski * '''Date:''' Fri, 25 Nov 2005 17:48:34 +0100 (CET) ----- <pre>Hi, I made CPUSET support for util-vserver, please take a look at it. I tested it, and it behaves as expected. Atteched is a patch for util-vserver .209 and a snippet for The Great Flower Page :) Jan -- Jan Rękorajski | ALL SUSPECTS ARE GUILTY. PERIOD! baggins<at>mimuw.edu.pl | OTHERWISE THEY WOULDN'T BE SUSPECTS, WOULD THEY? BOFH, MANIAC | -- TROOPS by Kevin Rubio</pre> <pre>diff -ur util-vserver-0.30.209/scripts/vserver-setup.functions util-vserver-0.30.209.cpuset/scripts/vserver-setup.functions --- util-vserver-0.30.209/scripts/vserver-setup.functions 2005-02-26 00:32:02.000000000 +0100 +++ util-vserver-0.30.209.cpuset/scripts/vserver-setup.functions 2005-11-25 15:11:30.224131360 +0100 @@ -24,11 +24,15 @@ SETUP_CONFDIR= SETUP_CONTEXT= SETUP_INITSTYLE= +SETUP_CPUSET= +SETUP_CPUSETCPUS= +SETUP_CPUSETMEMS= +SETUP_CPUSETVIRT= declare -a SETUP_INTERFACES=() declare -a SETUP_FLAGS=() -declare -r SETUP_OPTIONS="confdir:,lockfile:,hostname:,netdev:,netmask:,netprefix:,netbcast:,interface:,flags:,context:,initstyle:" +declare -r SETUP_OPTIONS="confdir:,lockfile:,hostname:,netdev:,netmask:,netprefix:,netbcast:,interface:,flags:,context:,initstyle:,cpuset:,cpusetcpus:,cpusetmems:,cpusetvirt" declare -r SETUP_HELPMSG=$" --context ... the static context of the vserver [default: none; a dynamic context will be assumed] @@ -55,6 +58,19 @@ this becomes a per vserver limit) private: No other process can join this security context. Even root + --cpuset <name> + ... declares the CPUSET this vserver will run in [default: none] + --cpusetcpus <number[-number][:<exclusive>]> + ... sets which cpus belong to the CPUSET, + exclusive is a flag (0|1) prohibiting any other cpuset from + using those cpus + --cpusetmems <number[-number][:<exclusive>]> + ... sets which memory pools belong to the CPUSET, + exclusive is a flag (0|1) prohibiting any other cpuset from + using those memory pools + --cpusetvirt + ... virtualize cpuset (guest will see only CPUs defined in cpuset) + Requires kernel patch from http://www.bullopensource.org/cpuset/ --initstyle <style> ... configures the initstyle (e.g. minit,sysv,plain) " @@ -72,6 +85,22 @@ (--netbcast) SETUP_NETBCAST=$2;; (--interface) SETUP_INTERFACES=( "${SETUP_INTERFACES[@]}" "$2" );; (--initstyle) SETUP_INITSTYLE=$2;; + (--cpuset) SETUP_CPUSET=$2;; + (--cpusetcpus) old_IFS=$IFS + IFS=: + set -- $2 + SETUP_CPUSETCPUS=$1 + SETUP_CPUSETCPUSEXCL=$2 + IFS=$old_IFS + ;; + (--cpusetmems) old_IFS=$IFS + IFS=: + set -- $2 + SETUP_CPUSETMEMS=$1 + SETUP_CPUSETMEMSEXCL=$2 + IFS=$old_IFS + ;; + (--cpusetvirt) SETUP_CPUSETVIRT=1;; (--flags) old_IFS=$IFS IFS=, set -- $2 @@ -140,7 +166,7 @@ local cfgdir=${SETUP_CONFDIR:?} local i - mkdir -p "$cfgdir"/interfaces "$cfgdir"/apps/init "$cfgdir"/uts + mkdir -p "$cfgdir"/interfaces "$cfgdir"/apps/init "$cfgdir"/uts "$cfgdir"/cpuset _setup_writeSingleOption "$name" "$cfgdir"/name _setup_writeSingleOption "$SETUP_CONTEXT" "$cfgdir"/context @@ -150,6 +176,12 @@ _setup_writeSingleOption "$SETUP_NETPREFIX" "$cfgdir"/interfaces/prefix _setup_writeSingleOption "$SETUP_NETBCAST" "$cfgdir"/interfaces/bcast _setup_writeSingleOption "$SETUP_INITSTYLE" "$cfgdir"/apps/init/style + _setup_writeSingleOption "$SETUP_CPUSET" "$cfgdir"/cpuset/name + _setup_writeSingleOption "$SETUP_CPUSETCPUS" "$cfgdir"/cpuset/cpus + _setup_writeSingleOption "$SETUP_CPUSETCPUSEXCL" "$cfgdir"/cpuset/cpus_exclusive + _setup_writeSingleOption "$SETUP_CPUSETMEMS" "$cfgdir"/cpuset/mems + _setup_writeSingleOption "$SETUP_CPUSETMEMSEXCL" "$cfgdir"/cpuset/mem_exclusive + _setup_writeSingleOption "$SETUP_CPUSETVIRT" "$cfgdir"/cpuset/virtualized local idx=0 for i in "${SETUP_INTERFACES[@]}"; do diff -ur util-vserver-0.30.209/scripts/vserver.functions util-vserver-0.30.209.cpuset/scripts/vserver.functions --- util-vserver-0.30.209/scripts/vserver.functions 2005-11-25 14:30:27.665999880 +0100 +++ util-vserver-0.30.209.cpuset/scripts/vserver.functions 2005-11-25 15:11:04.593027880 +0100 @@ -687,6 +687,54 @@ fi } +function addtoCPUSET +{ + local vdir=$1 + local cpuset + local f="$vdir"/cpuset + local i + local configured=0 + + test -d "$f" || return 0 + test -e "$f"/name || return 0 + + read cpuset < "$f"/name + test -e "$f"/nocreate || { + test -d /dev/cpuset/"$cpuset" || mkdir /dev/cpuset/"$cpuset" || configured=1 + for i in cpus mems cpu_exclusive mem_exclusive virtualized; do + if test -e "$f"/"$i"; then + cat "$f"/"$i" >/dev/cpuset/"$cpuset"/"$i" 2>/dev/null || { + configured=1 + break + } + fi + done + } + + echo $$ >/dev/cpuset/"$cpuset"/tasks || configured=1 + if [ "$configured" -ne 0 ]; then + warning $"\ +WARNING: Failed to create or CPUSET \"$cpuset\" does not exist! Not using it!" >&2 + rmdir /dev/cpuset/"$cpuset" 2>/dev/null || : + return 0 + fi +} + +function removeCPUSET +{ + local vdir=$1 + local cpuset + local f="$vdir"/cpuset + + test -d "$f" || return 0 + test -e "$f"/name || return 0 + + read cpuset < "$f"/name + test -e "$f"/nocreate || { + rmdir /dev/cpuset/"$cpuset" 2>/dev/null || : + } +} + function _mountVserverInternal { local fstab="$1" diff -ur util-vserver-0.30.209/scripts/vserver.start util-vserver-0.30.209.cpuset/scripts/vserver.start --- util-vserver-0.30.209/scripts/vserver.start 2005-10-28 20:41:32.000000000 +0200 +++ util-vserver-0.30.209.cpuset/scripts/vserver.start 2005-11-25 14:30:14.958931648 +0100 @@ -111,6 +111,7 @@ mountVserver "$VSERVER_DIR" && is_mounted=1 prepareInit "$VSERVER_DIR" +addtoCPUSET "$VSERVER_DIR" pushd "$VSERVER_DIR"/vdir/ >/dev/null execScriptlets "$VSERVER_DIR" "$VSERVER_NAME" pre-start diff -ur util-vserver-0.30.209/scripts/vserver.stop util-vserver-0.30.209.cpuset/scripts/vserver.stop --- util-vserver-0.30.209/scripts/vserver.stop 2005-10-29 17:35:43.000000000 +0200 +++ util-vserver-0.30.209.cpuset/scripts/vserver.stop 2005-11-25 15:12:23.679004984 +0100 @@ -99,3 +99,4 @@ disableInterfaces "$VSERVER_DIR" execScriptlets "$VSERVER_DIR" "$VSERVER_NAME" postpost-stop +removeCPUSET "$VSERVER_DIR" diff -ur util-vserver-0.30.209/scripts/vserver.suexec util-vserver-0.30.209.cpuset/scripts/vserver.suexec --- util-vserver-0.30.209/scripts/vserver.suexec 2005-07-15 21:01:06.000000000 +0200 +++ util-vserver-0.30.209.cpuset/scripts/vserver.suexec 2005-11-25 14:30:14.958931648 +0100 @@ -22,6 +22,7 @@ exit 1 } generateOptions "$VSERVER_DIR" +addtoCPUSET "$VSERVER_DIR" user=$1 shift</pre> <pre> <li> <span class="directory">/etc/vservers/<span class="symbolic">vserver-name</span>/<span class="">cpuset</span></span> <br /> <div class="description"> A directory with CPUSET configuration for the vserver. Documentation for this feature is available at <a href="http://www.bullopensource.org/cpuset/&quot;>http://www.bullopensource.org/cpuset/</a>, or in the kernel source in Documentation/cpusets.txt. </div> <ul> <li> <span class="file" title="/etc/vservers/$vserver-name/cpuset/name">name</span> <br /> <div class="description">The name of the cpuset for this vserver</div> </li> <li> <span class="file" title="/etc/vservers/$vserver-name/cpuset/cpus">cpus</span> <br /> <div class="description">The list of CPUs in this cpuset</div> </li> <li> <span class="file" title="/etc/vservers/$vserver-name/cpuset/mems">mems</span> <br /> <div class="description">The list of Memory Nodes in this cpuset</div> </li> <li> <span class="file" title="/etc/vservers/$vserver-name/cpuset/cpu_exclusive">cpu_exclusive</span> <br /> <div class="description">Flag (0|1): is cpu placement exclusive?</div> </li> <li> <span class="file" title="/etc/vservers/$vserver-name/cpuset/mem_exclusive">mem_exclusive</span> <br /> <div class="description">Flag (0|1): is memory placement exclusive?</div> </li> <li> <span class="file" title="/etc/vservers/$vserver-name/cpuset/virtualized">virtualized</span> <br /> <div class="description"> Flag (0|1): virualize this CPUSET, so guest system will see only those CPUs that are defined for this CPUSET. This feature requires additional kernel patch from <a href="http://www.bullopensource.org/cpuset/&quot;>http://www.bullopensource.org/cpuset/</a> </div> </li> <li> <span class="file" title="/etc/vservers/$vserver-name/cpuset/nocreate">nocreate</span> <br /> <div class="description">When this file exists, the cpuset will be assumed to exist already.</div> </li> </ul> </li></pre> ----- * '''Follow-Ups''': ** '''[[msg11511.html|Re: [Vserver] CPUSET support for util-vserver]]''' *** ''From:'' Herbert Poetzl * Prev by Date: '''[[msg11504.html|Re: [Vserver] linux-vrf]]''' * Next by Date: '''[[msg11506.html|Re: [Vserver] linux-vrf]]''' * Previous by thread: '''[[msg11488.html|[Vserver] gentoo guest wont start up or find anything after failed emerge]]''' * Next by thread: '''[[msg11511.html|Re: [Vserver] CPUSET support for util-vserver]]''' * Index(es): ** [[index.html#11505|'''Date''']] ** [[threads.html#11505|'''Thread''']]
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