CPU: Intel Broadwell microarchitecture, speed 2.9e+06 MHz (estimated)
samples  cum. samples  %        cum. %     image name               symbol name
192587   192587        74.0332  74.0332    libigdrcl.so.16.4.0      /opt/intel/opencl/libigdrcl.so.16.4.0
35420    228007        13.6160  87.6492    libpthread-2.19.so       pthread_mutex_lock
26915    254922        10.3465  97.9957    libpthread-2.19.so       __pthread_mutex_unlock_usercnt
5210     260132         2.0028  99.9985    libpthread-2.19.so       pthread_mutex_unlock
1        260133        3.8e-04  99.9988    i915.ko                  i915_gem_obj_ggtt_offset_view
1        260134        3.8e-04  99.9992    vmlinux-4.1.20-11-default enqueue_task_fair
1        260135        3.8e-04  99.9996    vmlinux-4.1.20-11-default hrtick_update
1        260136        3.8e-04  100.000    vmlinux-4.1.20-11-default native_flush_tlb_global