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Page cache behavior guarantees and log files

Are there any guarantees as to when and in what order dirty pages are written out to disk? In the specific case of log structured files (files that are only ever appended to), is it possible for dirty ...
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2answers
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What are two caveats of line buffering in Unix?

A paragraph from APUE Chapter 5.4 about line buffer: Line buffered. In this case, the standard I/O library performs I/O when a newline character is encountered on input or output. This allows us ...
1
vote
1answer
225 views

free -m: free size reduced because of cache/buff

I'm using the function rosbag of ROS. rosbag can record lots of data from other ROS nodes. In a word, it will generate a huge file, such as a file of 200MB. After generating such a file, I found that ...