Pull request latency evaluation is an essential application of effort evaluation in the pull-based development scenario. It can help the reviewers sort the pull request queue, remind developers about the review processing time, speed up the review process and accelerate software development. There is a lack of work that systematically organizes the factors that affect pull request latency. Also, there is no related work discussing the differences and variations in characteristics in different scenarios and contexts. In this paper, we collected relevant factors through a literature review approach. Then we assessed their relative importance in five scenarios and six different contexts using the mixed-effects linear regression model. We find that the relative importance of factors differs in different scenarios, e.g., the first response time of the reviewer is most important when there exist comments. Meanwhile, the number of commits in a pull request has a more significant impact on pull request latency when closing than submitting due to changes in contributions brought about by the review process.

翻译：在基于拉动的发展情景中,拉动请求延迟度评价是工作评价的一个基本应用。它可以帮助审查者对拉动请求排队进行排序,提醒开发者注意审查处理时间,加快审查过程并加快软件开发。缺乏系统地组织影响拉动请求延迟度的因素的工作。此外,没有开展相关工作讨论不同情景和背景的特点的差异和差异。在本文件中,我们通过文献审查方法收集了相关因素。然后,我们利用混合效应线性回归模型评估了五个情景和六个不同背景中的因素的相对重要性。我们发现,不同情景中不同因素的相对重要性,例如,在有意见时,审查者的第一次回应时间最为重要。同时,在拉动请求中的承诺数量对拉动延迟度请求的影响比在提交审查过程引起的捐款变化之后的结束时间要大。