<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/96141>96141</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Repacking of the repository
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          ktf
      </td>
    </tr>
</table>

<pre>
    I am doing:

git clone -n https://github.com/llvm/llvm-project /build/nomad/alloc/8740274f-f4f8-d560-be56-0eee5f040bd0/ci/local/o2-alidist-dataflow/sw/SOURCES/Clang/v15.0.7/llvmorg-15.0.7 --dissociate --reference /build/nomad/alloc/8740274f-f4f8-d560-be56-0eee5f040bd0/ci/local/o2-alidist-dataflow/sw/MIRROR/clang --filter=tree:0

and it takes relatively long doing the repacking of the repository due to the `--dissociate`. 

I contacted the Github support and they told me that they can trigger some automated gc / optimisation on their side upon request, however it must be asked by the repository maintainer.

Any chance you could reach out to them and ask for such operation to be performed?
</pre>
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