Update stream buffer while reading / proc

Question

I read from / proc / pid / task / stat to track CPU usage in the thread. fopen on / proc / pic / task / stat fget line from sscanf stream in line

I am having problems updating stream buffers. If I update 1024 characters, if updated, but if I create 128 characters, it will never be updated, and I always get the same statistics. I rewind the stream before reading and tried fsync.

I do this very often, so I do not want to reopen the file every time. What is the right way to do this?

Answer 1

Not every program has the benefits of using buffered I / O.

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