6.7.0 Modern horrific grid performance compared to 6.6.0 Modern

[gwyn_carwardine]

My app loads a grid and then performs sizing on columns.

Using 6.6.0 the whole get / load / size process takes about 2.6s
Grid load and resize 6.6.0.jpg
Using 6.7.0 the same process takes 35 seconds.
Grid load and resize 6.7.0.jpg

Yup - 6.7.0 is over 13 times slower

I am beyond furious at this crap

[lovelyhibabe]

I mention it in https://www.sencha.com/forum/showthread.php?471448 , but there is no respond

[rakumar]

Hello Gwyn,

Thank you for contacting Sencha Support !

I request you to provide fiddle, screen cast of both versions and browser details to assist you in a better way.

Regards,
Kumar
Sencha Support.

[gwyn_carwardine]

I can't be bothered. I ran identical code in 6.6 and 6.7 so it's definitely a bug. But I'm not going to waste my time reproducing it. I've reported quite a few bugs over last couple of years and not a single one has been fixed. So what's the point?

[rakumar]

Hello Gwyn,

I have checked with a basic grid and not found any performance issue so we were asking for fiddle.Generally performance issue comes with large amount of data. so could you please provide what could be the size of data when you were facing the issue. Also provide the browser details.

Regards,
Kumar
Sencha Support