AnsweredAssumed Answered

vrf New file at midnight - solution

Question asked by VRFuser on Aug 31, 2006
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One final point -  for my purposes, I seem to be able to get away with closing each file after each entry. If I didn't do this, old files would

remain open unless a "new file name" test corrected this situation (see Mike Asbery's "New File at Midnight" response).
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One point about this, file fragmentation could get very large.  I have a system that stores data every 0.5 second.  When closing the file after every update period, after 24 hours, the files (several Mbytes in size) had several 100's of fragments.  When I didn't close the file, the fragmentation rate dropped significantly (a few 10's or less).

Dave Andersen
Software Engineer
Space & National Systems Division
General Dynamics C4 Systems

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