On 4 May 2010 14:05, Stuart Bird <stuart.bi...@googlemail.com> wrote: > Basically I need to ensure that Ubuntu is multiprocessor aware and that it > is making use of all the processors and/or cores when a program designed to > use them all is run. > > I think that makes sense :) >
Easiest way to see if your system is mp aware is just run something like "top" in a terminal. The CPU line shows all CPUs activity aggregated like this:- top - 14:09:19 up 83 days, 1:07, 4 users, load average: 1.87, 1.89, 1.95 Tasks: 895 total, 4 running, 891 sleeping, 0 stopped, 0 zombie Cpu(s): 0.6% us, 0.5% sy, 0.0% ni, 98.7% id, 0.0% wa, 0.0% hi, 0.0% si Mem: 131900740k total, 113857192k used, 18043548k free, 133156k buffers Swap: 33554424k total, 8k used, 33554416k free, 94430544k cached Press "1" and it will split out each CPU... like this:- top - 14:09:39 up 83 days, 1:08, 4 users, load average: 1.77, 1.87, 1.94 Tasks: 895 total, 2 running, 893 sleeping, 0 stopped, 0 zombie Cpu0 : 0.6% us, 0.3% sy, 0.0% ni, 99.1% id, 0.0% wa, 0.0% hi, 0.0% si Cpu1 : 3.0% us, 0.6% sy, 0.0% ni, 96.2% id, 0.0% wa, 0.0% hi, 0.0% si Cpu2 : 5.6% us, 0.3% sy, 0.0% ni, 93.9% id, 0.0% wa, 0.0% hi, 0.1% si Cpu3 : 2.2% us, 1.6% sy, 0.0% ni, 95.9% id, 0.2% wa, 0.0% hi, 0.0% si Cpu4 : 0.8% us, 0.3% sy, 0.0% ni, 98.8% id, 0.1% wa, 0.0% hi, 0.0% si Cpu5 : 1.0% us, 0.3% sy, 0.0% ni, 98.6% id, 0.0% wa, 0.0% hi, 0.0% si Cpu6 : 10.8% us, 1.6% sy, 0.0% ni, 86.9% id, 0.0% wa, 0.1% hi, 0.6% si Cpu7 : 29.8% us, 2.0% sy, 0.0% ni, 67.4% id, 0.0% wa, 0.0% hi, 0.7% si Cpu8 : 36.0% us, 1.5% sy, 0.0% ni, 61.7% id, 0.1% wa, 0.0% hi, 0.8% si Cpu9 : 12.9% us, 0.6% sy, 0.0% ni, 86.1% id, 0.1% wa, 0.1% hi, 0.3% si Cpu10 : 0.9% us, 0.3% sy, 0.0% ni, 98.3% id, 0.3% wa, 0.0% hi, 0.1% si Cpu11 : 4.5% us, 0.5% sy, 0.0% ni, 94.2% id, 0.5% wa, 0.0% hi, 0.3% si Mem: 131900740k total, 113859240k used, 18041500k free, 133172k buffers Swap: 33554424k total, 8k used, 33554416k free, 94431560k cached If you see multiple lines for CPU then chances are you're good to go. Cheers, Al. -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
