Hi Tim,
> styled text has given me problems w/speed
> My guess would be it's the RTF
••••
Some follow up information.
I believe I've found what appears to be a substantial bottleneck with
anything but very small text samples. The application I'm working on
generates the RTF from an editfield, base64 encodes it, inserts it
into a db, inserts it into another db, refreshes a listbox and then
writes a text file backup. These are my figures for 100 words, 300
words, 900 words and 3000 words - all times are ticks.
100 300 900 3000
generate RTF 3 43 943 34130
base64 1 1 1 1
Insertdb1 1 1 3 5
Insertdb2 1 1 24 2
listbox refresh 19 75 1077 36889
Write file 2 3 1 1
As you can see the db inserts, base64 encoding and file writing are
fine. I haven't checked but I imagine the listbox refresh has a call
to the RTF which woukd explain it's slowness. The RTF generation is
the main issue. A 3x increase in words results in a 13 times increase
in elapsed time. A 9x increase in words sees a 314x increase in
elapsed time. A 30x increase in words sees a staggering 11,376x
increase in elapsed time.
For my application, word counts of between 500 and 3000 would be
fairly common so this is a major concern. As much as I thought the
RTF functions were a dream come true it appears they're more of a
nightmare.
cheers
kim
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