I can't run the "perf" command. Perf is a linux profiler for stack traces
<p>Trying to use the perf profiler. I've installed linux generic tools, but no luck. Here is the message I'm getting:</p>

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<pre><code>r@r-K55A:~$ perf
WARNING: perf not found for kernel 3.16.0-45

  You may need to install the following packages for this specific kernel:
    linux-tools-3.16.0-45-generic
    linux-cloud-tools-3.16.0-45-generic

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

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<p>I've tried to install the above packages, but I get the following error:</p>

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<pre><code>Unable to locate package linux-tools-3.16.0-45-generic
E: Couldn't find any package by regex 'linux-tools-3.16.0-45-generic'
</code></pre>

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