Wednesday, November 30, 2005

FileMaker via ODBC Performance Problems

When Cristóbal was updating fields in Batch Line Items.fp5 (a FileMaker DB) via ODBC, each field update was taking about 30 seconds. A small part of the problem was the calculated fields, and if you ever need to maximize performance, you might want to look to see if it’s possible to remove them.
However, the big performance culprits were 2x summary fields, which accounted for about 93% of the slowdown. He was able to remove one field, since SNR indicated that it was totally unused. The other he converted to a global field, and introduced a “recalculate” button on the layout where the field was used – the button called a script to recalculate the field in accordance with the old summary field definition.
With around a half a dozen calculated fields, the updates took about 2 seconds, which is too slow, but fast enough for our needs.
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