Home/ Questions/Q 3801968
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-19T14:08:01+00:00

So I have many log files that I need to write to. They are

  • 0

So I have many log files that I need to write to. They are created when program begins, and they save to file when program closes.

I was wondering if it is better to do:

fopen() at start of program, then close the files when program ends – I would just write to the files when needed. Will anything (such as other file io) be slowed down with these files being still “open” ?

OR

I save what needs to be written into a buffer, and then open file, write from buffer, close file when program ends. I imagine this would be faster?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Well, fopen(3) + fwrite(3) + fclose(3) is a buffered I/O package, so another layer of buffering on top of it might just slow things down.

    In any case, go for a simple and correct program. If it seems to run slowly, profile it, and then optimize based on evidence and not guesses.

    • 0