$ sudo -s
#
# systemctl stop lttng-sessiond.service
# ps -ef | grep -i lttng
# lttng-sessiond -vvv --verbose-consumer -b > /tmp/lttng-sessiond.log 2>&1
# pkill lttng-sessiond
# uname -a
# find /lib/modules/$(uname -r)/ | grep lttng
# dmesg | grep lttng
#
# cd ~/git/compute/out/ubuntu-18.04/18.04/lib
# export LD_LIBRARY_PATH=`pwd`:$LD_LIBRARY_PATH
# echo $LD_LIBRARY_PATH
#
# cd ../bin
# LD_PRELOAD=liblttng-ust-cyg-profile-fast.so  ./rocminfo
# lttng list -u
#
#  LD_PRELOAD=liblttng-ust-cyg-profile-fast.so  LTTNG_UST_DEBUG=1     ./rocminfo
#
#
#
#