On 3/16/07, Glenn Waldron <[EMAIL PROTECTED]> wrote:
Here's another data point to consider... I came across this discussion in
which the poster suggests that NTFS' indexing scheme does not favor a large
number of similarly-named files in a single folder (which is pretty much
what you get from osgdem).
http://groups.google.com/group/microsoft.public.win2000.file_system/browse_thread/thread/e7b4d86095272427/257d6a0a740f9d6c
Upshot is that randomization of filenames might make a difference. -gw
Ack, if this true then MS have dug themselves and their users into a
even deeper whole w.r.t performance of paged databases. Randomly
renaming files to get round poor design/implementation of the file
system is a pretty poor solution.
Perhaps one way around this might be to archive the files into a
series of .osga files. The archives arn't well optimized yet (the
streambuf just crudely reads a byte at a time), but the indexing
system will using an in memory std::map so indexing of files is should
be very quick and scale well.
Robert.
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