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<DIV dir=ltr>
<DIV style="FONT-FAMILY: 'Verdana'; COLOR: #000080; FONT-SIZE: 12pt">
<DIV>I came across an oddity in a program that creates lots (eg 30,000+) files
exporting selected data from a database.</DIV>
<DIV> </DIV>
<DIV>Some files disappear on slower PCs even though they are
created.</DIV>
<UL>
<LI>Files are created in a thread using TFilestream, in a loop
<LI>Each file is being checked that it gets created using a if
FileExists(filename) in the loop and they always seem to be there.
<LI>Files are written at the rate of around 20-30 per second and are mostly
around 3KB in size.
<LI>At the end of the big loop a list of files created is created by the usual
FindNext code.
<LI>On some slower PC’s (XP or Server 2003) some files are missing.
Faster PC’s with Win7 have all the files. All PC’s are VMs.
<LI>Files missing might range from 10 to 500, never the same number
<LI>The problem can be cured by putting a 2 millisecond sleep between creating
each file. 1 Millisecond is not enough.</LI></UL>
<DIV>Can anyone shed any light on why this might be the underlying issue and why
a sleep might fix it?</DIV>
<DIV> </DIV>
<DIV style="FONT-FAMILY: 'Verdana'; COLOR: #000080; FONT-SIZE: 12pt">John
Bird<BR></DIV></DIV></DIV></BODY></HTML>