You may try running "perf top -p ($pidof traffic_server)" to check where the CPU cycles are being spent.
Thanks, Sudheer > On Oct 27, 2014, at 4:24 PM, "Jason J. W. Williams" > <[email protected]> wrote: > > Seeing an odd issue on the new Ubuntu 14.04 boxes we're loading with > Traffic Server 4.2.1.1. The [ET_NET 0] process runs consistently at > 6-18% CPU utilization with no traffic being processed. The exact % > depends on the CPU speed (e.g. a 2.1 GHz 8-core box runs at 18%, a > 2.93GHz 8-core runs at 6%). > > For comparison a 2-core 2.0GHz old Opteron box with a moderate load is > running 0-5% CPU...but it's running Ubuntu 10.04. > > Not sure how to track down the cause because the logs are quiet. > > > -J
