Thanks. Looks like its spending most of its time in these calls: 30.91% [kernel] [k] acpi_pm_read_verified 16.78% [kernel] [k] finish_task_switch 6.16% [kernel] [k] _raw_spin_unlock_irqrestore
On Mon, Oct 27, 2014 at 5:15 PM, Sudheer Vinukonda <[email protected]> wrote: > 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
