Unless the Java programmer knows something you don't (like there are only 100 possibilities for filenames), I don't think their performance will beat an implementation that caches filehandles, as you described in your second example. I don't even think a C or Assembly program would be much faster; IMHO the time will be completely dominated by I/O and system calls.

One trick to be able to keep many filehandles open without worrying about consuming more resources than you intend to is the FileCache module.


In reply to Re: Performance Trap - Opening/Closing Files Inside a Loop by sgifford
in thread Performance Trap - Opening/Closing Files Inside a Loop by Limbic~Region

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