[4.x] Serious performance issues under IE 8

[rich02818]

MrSparks, any chance you can run the same test and post results for IE9?

My $.02: IE is unfortunately the dominant business browser and any business-oriented web app must be useable on IE (and this means IE8 (or lower) now and for some time to come). Ext version 3 was borderline too slow on IE8 and version 4 was promised to be faster.

[MrSparks]

MrSparks, any chance you can run the same test and post results for IE9?

My $.02: IE is unfortunately the dominant business browser and any business-oriented web app must be useable on IE (and this means IE8 (or lower) now and for some time to come). Ext version 3 was borderline too slow on IE8 and version 4 was promised to be faster.

@Rich02818,

Only have Windows XP this end, so no IE 9 unfortunately.

[stevil]

MrSparks, any chance you can run the same test and post results for IE9?

My $.02: IE is unfortunately the dominant business browser and any business-oriented web app must be useable on IE (and this means IE8 (or lower) now and for some time to come). Ext version 3 was borderline too slow on IE8 and version 4 was promised to be faster.

Concur - I know I'll have customers who for whatever reason are still on IE6 and won't budge. Ultimately, they'll have to move, but good IE8 support is critical (as I'm sure Sencha would agree).

[stevil]

@Rich02818,

Only have Windows XP this end, so no IE 9 unfortunately.

@MrSparks,

That's no way to live, my friend...

[edspencer]

Just checking in to let you guys know we're still here (and to reiterate that we view IE6/7/8 as paramount)...

[rich02818]

Themes test measured on a laptop, core i3 2.40GHz, 4GB RAM, Windows 7 Home Premium 64-bit

IE9:
1.2 sec 3.4.0
1.1 sec 4.1 pr1

Chrome:
.84 sec 3.4.0
.95 sec 4.1 pr1

[rich02818]

Themes test measured on desktop Core i7 2.67GHz, 12G RAM, Windows 7 Ultimate 64-bit. The test is loaded first, and the times are for reloads only.

IE8
1.26 sec 3.4.0
2.24 sec 4.1 pr1
** Much improvement needed....4.1 takes 78% longer than 3.4.0.

Chrome:
.62 sec 3.4.0
.70 sec 4.1 pr1

FF 3.6
1.86 sec 3.4.0
1.56 sec 4.1 pr1

Safari
.47 sec 3.4.0
.51 sec 4.1 pr1

[rich02818]

Just updated test for 4.1.0 gpl.


On IE8 there is no improvement vs 4.1 pr1, however, on Chrome 4.1.0 is almost 20% slower than 4.1 pr1.


So 4.1.0 is 56% slower than 3.4.0 on Chrome and 83% slower than 3.4.0 on IE8.


Themes test measured on desktop Core i7 2.67GHz, 12G RAM, Windows 7 Ultimate 64-bit. The test is loaded first, and the times are for reloads only.


Averages of 10 consecutive reloads via F5:


IE8
1.22 sec 3.4.0
2.24 sec 4.1.0 identical to 4.1 pr1
** Still much improvement needed....4.1 takes 78% longer than 3.4.0.


Chrome:
.53 sec 3.4.0
.83 sec 4.1.0 (was .70 on 4.1 pr1)


Raw data below:


Ave times in secs Chrome 18.0.1025.162 m IE 8.0.7601.17514
3.4.0 0.533 1.223
4.1.0 0.832 2.236


ratio 4.1.0/3.4.0 156% 183%

Individual run times:
4.1.0 Chrome 4.1.0 IE8
0.825 2.380
0.840 2.061
0.935 2.017
0.792 2.014
0.835 1.934
0.794 2.375
0.766 2.380
0.813 2.390
0.801 2.391
0.915 2.414

3.4.0 Chrome 3.4.0 IE8
0.545 1.300
0.552 1.290
0.545 1.303
0.543 1.178
0.531 1.179
0.522 1.198
0.526 1.186
0.525 1.191
0.517 1.183
0.521 1.226

[dongryphon]

Themes test measured

Just a point worth mentioning... the Themes example in v4 has a lot more to it than v3 Themes.

If you want to compare apples to apples here, you'll want to port the v3 Themes example to v4 and measure.

I did this some months ago out of curiosity and it was a 10%-15% difference between the v4 Themes and the v3-Themes-on-v4.

[rich02818]

Just a point worth mentioning... the Themes example in v4 has a lot more to it than v3 Themes.

If you want to compare apples to apples here, you'll want to port the v3 Themes example to v4 and measure.

I did this some months ago out of curiosity and it was a 10%-15% difference between the v4 Themes and the v3-Themes-on-v4.

Actually, we want Sencha to compare apples to apples and report the results...as requested earlier. Don't you have any v3 vs v4 benchmark tests that are being used?