What is 2727 JBD2?
What is 2727 JBD2?
27 jbd2is a kernel thread that updates the filesystem journal. Tracing filesystem or disk activity with the process that caused it is difficult because the activities of many processes are combined together. For example, if two processes are reading from the same file at the same time, which process would the read be accounted against?
What is a JBD2 device?
The JBD is the journaling block device that sits between the file system and the block device driver. The jbd2 version is for ext4, as you found. If you are seeing a lot of activity when nothing much is running, check if any of the logs are getting a lot of updates. 3 members found this post helpful.
What is the difference between JBD2 and Io?
– Unix & Linux Stack Exchange When monitoring disk IO, most of the IO is attributed to jbd2, while the original process that caused the high IO is attributed a much lower IO percentage. Why? Here’s iotop’s example output (other
