Alfresco only uses one cpu

[fupduck]

I hope there is no other thread regarding this - I didn't find anything…

So I'm using 3.4.d on Debian 6.0.1 VM

with ~ 16G of RAM

cat /proc/meminfo 
MemTotal: 16474312 kB‍‍

and 4 cpus

my alfresco.sh includes

export JAVA_OPTS='-Xmx15g -Xss1024k -XX:MaxPermSize=256m -server -XX:UseParallelGC'‍

(I tried it without the last parameter too)

Now I'm inserting many documents. But just one cpu is used (seen via top). java and mysql add up to 100% (sometimes a little more sometimes a little less).

Edit: I also read the http://wiki.alfresco.com/wiki/JVM_Tuning but just didn't get anything
Do you have any suggestions how to get this working? It should use all cpus of course… I don't have a clue…

Thanks a lot in advance…

[fupduck]

ok well that was just too stupid.
Apparently it just didn't need more cpu (strange that it was always nearly 100% though…)
adding new docs via 2 scripts increases it to nearly 200%.
ops: