What can cause wa% to be high?

Hi Asterisk Support,

I have Loads issue on my pbx, and I see when on top command that wa% is very high (between 10-13)
what wa represends? and what can cause it to get so high?

please help


What tool is providing this figure? It doesn’t sound like a figure that is provided by Asterisk.

If this is the value as provided by top then that would be I/O wait time. This is generally for disk activity.