[collectd] terrible perfomance of collectd

[Israel Garcia]

Hi list, I'm running collectd 4.7.2 on a xen  domU(debian lenny) and
on a Dual Intel 1.4GHz, RAID1 with 2x36GB SCSI 10,500RPM . I'm
collecting information of more than 100 servers (a lot of rrd files),
so cpu load is always at 100% iowait, the load is  always over 3, disk
is doing over 400 IOPS and 3MB/s througput. No more domU's are running
in this dom0 server. How can I improve the performance in this server?
Can you help me?

-- 
Regards;
Israel Garcia