Monitor resource information

Hi all,

I am trying to monitor the resources on some machines. Unfortunately monitoring load or simply traditional CPU/Memory does not provide accurate values for burst workload. So if I rely on these metrics to accommodate traffic I am ending up in too many losses due to slowness in updating these metrics according to my intensive traffic.

Do you know if there are some low level OS metrics which are more sensitive to changes in traffic(maybe some reported by sysstat ?) which allows me to react more quickly in multiplexing the traffic ?

Thanks in advance,
Robert