$ uname -a Linux lx-pc.odysseo 4.4.4-301.fc23.x86_64 #1 SMP Fri Mar 4 17:42:42 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux $ lsmod |egrep 'pax|sep3_15|vtsspp' vtsspp 360448 0 sep3_15 557056 0 pax 16384 0 $ /opt/intel/vtune_amplifier_xe/bin64/amplxe-cl -collect advanced-hotspots -knob collection-detail=stack-and-callcount -- dd if=/dev/zero of=/dev/null bs=512 count=10000k amplxe: Collection started. To stop the collection, either press CTRL-C or enter from another console window: amplxe-cl -r /home/dclaude/r000ah -command stop. amplxe: Warning: To enable hardware event-base[d] sampling, VTune Amplifier has disabled the NMI watchdog timer. The watchdog timer will be re-enabled after collection completes. 10240000+0 records in 10240000+0 records out 5242880000 bytes (5.2 GB) copied, 2.54337 s, 2.1 GB/s ... Event summary ------------- Hardware Event Type Hardware Event Count:Self Hardware Event Sample Count:Self Events Per Sample -------------------------- ------------------------- -------------------------------- ----------------- INST_RETIRED.ANY 15412587622 3418 3300000 CPU_CLK_UNHALTED.THREAD 8348755128 2860 3300000 CPU_CLK_UNHALTED.REF_TSC 8080326243 2809 3300000 BR_INST_RETIRED.NEAR_TAKEN 314605812 1573 200003 CALL_COUNT 57325845 40810 1 amplxe: Executing actions 100 % done $ dmesg [ 2290.876581] vtss_cmd_start[cpu11]: Starting vtss++ collection [ 2290.884737] vtss_pebs_init[cpu11]: PEBS: size=0xC0, mask=0xF, family = 6, model = 3f [ 2290.901933] probe_sched_process_fork[cpu11]: register_kretprobe('do_fork') failed: -2 [ 2293.541711] vtss_collection_fini[cpu11]: vtss++ collection stopped 0 [ 2293.542425] NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter. [ 2293.544222] vtss_transport_fini[cpu2]: Transport stopped.