guite@guite-X550LN [05:49:45] [~] 
-> % perf
WARNING: perf not found for kernel 3.16.0-34

  You may need to install the following packages for this specific kernel:
    linux-tools-3.16.0-34-generic
    linux-cloud-tools-3.16.0-34-generic

  You may also want to install one of the following packages to keep up to date:
    linux-tools-generic-lts-<series>
    linux-cloud-tools-generic-lts-<series>