On 07/27/2011 05:03 AM, Alexander Thurgood wrote:
Le 27/07/11 10:16, Tom Cloyd a écrit :
Hi Tom,
Just to move the record pointer from the first to the last record takes
almost exactly 20 seconds. To do a search of the beginning of the main
text field for a 6 character string that isn't there (i.e., the engine
searches to the very end of the table) takes 2 minutes and 5 seconds.
You can imagine how long it takes to locate and update 10 records. This
is the worst performance I've ever seen in a database, period.
Unfortunately, you are not the first, and no doubt the last either, to
report performance issues using the Base with integrated hsqldb. The
problem is not hsqldb, which actually on its own performs quite well,
but the manner in which Base loads everything into memory to be able to
work.
You could try issuing a SHUTDOWN COMPACT command from the Tools> SQL
dialog, then saving and closing your ODB file before re-opening it again.
Alex
That command appears to have cut 5 seconds off the record pointer move
test, and also off the full db search test I ran previously.
Tom
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