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psewt
25 Jan 2012, 4:43 AM
Hi,
I'm having performance problems when migrated from ExtJs 3 to 4 with:
grid.reconfigure(store, columns) for 275 columns
Time to execute the call:
ExtJs3: under 1s
ExtJs4: 32s (or script fails)
Does anyone have an idea how to reconfigure the grid so it does not take so long?

jay@moduscreate.com
25 Jan 2012, 9:14 AM
There are some grid performance problems that are being addressed in ext 4.1.

That said, 275 columns. How is that usable?

psewt
26 Jan 2012, 1:52 AM
Actually I didn't make the analysis, I just migrated it to ExtJs3 and it was fast, but in ExtJs4 not, so that's the problem.

LesJ
26 Jan 2012, 1:41 PM
Hi,
I'm having performance problems when migrated from ExtJs 3 to 4 with:
grid.reconfigure(store, columns) for 275 columns
Time to execute the call:
ExtJs3: under 1s
ExtJs4: 32s (or script fails)
Does anyone have an idea how to reconfigure the grid so it does not take so long?

Is it IE? This bug is still not fixed as of 4.1 B2.

EXTJSIV-3632 Grid performance in IE with large number of columns

psewt
27 Jan 2012, 1:39 AM
Is it IE? This bug is still not fixed as of 4.1 B2.

EXTJSIV-3632 Grid performance in IE with large number of columns

No, it is a general problem, but IE has by far the slowest performance, Chrome is the fastest but still very slow comparing to ExtJS3.

brandname
12 Mar 2012, 10:44 PM
I have the same issue, reconfigure for 5 columns and 50 rows takes ~5s! without reconfigure rendering ~1s

dnorman
13 Mar 2012, 6:39 PM
I'm running into this issue as well with 4.0.7

Calling reconfigure on a 17 row x 17 column grid results in a 5-7 second freeze before the grid renders (in chrome) I shudder to think how long it'd take in IE.

How long could it take to render < 300 cells?
This was way faster under 3.x.
Something must be going wrong here