git gc

[Daniel Wester]

What's the question? 

If it's "Do I need to run gc" then the answer is:

"The git gc command cleans up unnecessary files and optimizes the local repository. Bitbucket runs this operation on its hosted repositories automatically on a regular basis based on a variety of triggers. Locally you can run it at any time. Running it won't have any adverse affect on your repository."

See https://confluence.atlassian.com/pages/viewpage.action?pageId=287998264 for more details