ssh-agent.exe taks to much CPU

Sometimes it happens the ssh-agent.exe process takes to much CPU (about 33% on my Intel i5 2.5GHz) and I have to restart the SourceTree. Note, I have authentication by the ssh key, so maybe disabling the ssh-agent.exe would help, see SRCTREEWIN-6154.

Similar problems is reported for the GitHub, too, see http://stackoverflow.com/questions/26547024/github-for-windows-ssh-agent-exe-using-high-cpu-100-disk And check the moggizx comment about the SourceTree - upvoted 6 times.