Fixing the Git Blame Beachball
Blog post from Zed
In a recent debugging session with the Zed text editor, developers encountered a severe hang issue triggered by the use of git commit, which caused the application to become unresponsive. A CPU profile revealed that the main thread was blocked, and further investigation showed that Zed was spawning an excessive number of git processes due to a new Inline Git Blame feature. This feature inadvertently caused 257 simultaneous git processes to run when the git index changed, leading to significant delays. Additionally, a priority inversion issue was identified, where the main thread's expected wake-up signal was delayed by lower-priority tasks blocked by the git processes. These issues were addressed in version 0.133.7, which also included other performance improvements. The developers encourage users to report any similar issues and invite interested individuals to try Zed or join their team.
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