Many thanks Stan But to be honest, you document is very hard to understand... for my skills cpusets are set to create cpu tasks environnements my problem is to ensure that all postfix tasks will go into the defined cpuset filesystem
because if i set the first process "/usr/sbin/postfix start" to cpu 1 it will run /usr/libexec/postfix/master according /usr/libexec/postfix/master will run /usr/libexec/postfix/qmgr and others tasks and depends of the SMTP behavior Have you a such set examples of command lines to cpuset or the commande line tool according postfix artchitecture ? Le jeudi 23 décembre 2010 à 17:13 -0600, Stan Hoeppner a écrit : > David Touzeau put forth on 12/23/2010 3:43 PM: > > Dear bests > > > > I would like to know if you think this tool can help me about my > > needs : > > > > http://linux.die.net/man/1/taskset > > Ahh, Linux, and Debian no less. My favorite as well. :) > > I strongly suggest you read the following document (which I previously > mentioned) for further understanding of cpusets and how to manage them: > > http://www.mjmwired.net/kernel/Documentation/cgroups/cpusets.txt > > taskset is but one shell interface to cpusets system calls, written by > Robert M. Love, another is SGI's runon command. Andi Kleen's numactl > shell command can be used to manipulate memsets (cpusets.mems). cpusets > are managed via a virtual filesystem, and as such new cpusets are > created with the mkdir shell command, just as you would create any > filesystem directory. > > Linux cpusets will allow you to do exactly what you want. You can thank > (mainly) SGI staff and the other participants of the Linux Scalability > Effort for their work that resulted in the cpusets functionality. This > project began many years ago due to SGI's switch from MIPS/Irix to > Itanium/Linux supercomputer hardware that scaled from 2 to 512 CPUs, the > focus was to duplicate existing IRIX functionality in Linux. Other > staff at vendors of scalable Linux hardware participated as well, > including IBM with xSeries NUMA Xeon machines up to 16 CPUs at the time > IIRC, and Bull, Fujitsu, Hitachi, and HP with 2-32 CPU Itanium machines. >
