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View Full Version : The performance of QtWebKit on Wince 6.0, including MIPS platform



favor
15th April 2010, 15:46
Hi, all

I just wonder what's the performance of QtWebKit on Wince 6.0, including MIPS platform?
I am confusing with this, I got this problem that webkit can't run normally as expected on MIPS.
the ram which can be used is 128M, but I got it low performance, and it load web page or local htm page faild, just show a blank white.
Please give us you opinions freely.

favor
19th April 2010, 03:36
Does no one knows this?

lamosca
19th April 2010, 20:40
hello,

what version of qt are you using??

I"m using qt 4.6.2 on imx51 Freescale board. The perfomances are acceptables, and I can load web page and local content. the only thing is that it has poor Javascript performances, I heard that it is maybe because there is no JIT enabled in qtwebkit for wince. I would like also improve Javascript performances if you find something, share with me.

Thanks,

favor
20th April 2010, 03:12
I am using Qt 4.6.0 version on MIPS platform, and it can't load any web pages, even a static html page.
I don't know why is this?
and when I start the webbrowser demo, the serial console will prompt out errors like below:



Exception 'Alignment Error' (4): Thread-Id=055a080a(pth=879029e0), Proc-Id=05510

0f2(pprc=862a99b0) 'browser.exe', VM-active=055100f2(pprc=862a99b0) 'browser.exe'

PC=41dc9094(qtwebkit4.dll+0x00389094) RA=41dc97bc(qtwebkit4.dll+0x003897bc) SP=0

01fb388, BVA=00000000

Exception 'Raised Exception' (-1): Thread-Id=055a080a(pth=879029e0), Proc-Id=004

00002(pprc=8240a30c) 'NK.EXE', VM-active=055100f2(pprc=862a99b0) 'browser.exe'

PC=c003fdd0(k.coredll.dll+0x0001fdd0) RA=80113b8c(kernel.dll+0x00005b8c) SP=de8c

f3f8, BVA=ffffffff

CTLPNL: cmdline=cplmain.cpl,6

--->>>CTLPNL: CPL='cplmain.cpl' icon=6 tab=0

QWaitCondition: Destroyed while threads are still waiting

can you help me?

Thanks

favor
22nd April 2010, 08:57
Hi,all

I have a qtwebkit example compiled for MIPS on CE6, every time when I start the exmaple, it will prompt out error something like below; and the exmaple can't load any web pages at all, even local static html page.
The typical error is something like that:

Exception 'Alignment Error' (4): Thread-Id=05fe000a(pth=8791a6b8), Proc-Id=05fd000a(pprc=8654c6b8) 'simpleWeb.EXE', VM-active=05fd000a(pprc=8654c6b8) 'simpleWeb.EXE'
PC=41dc9094(qtwebkit4.dll+0x00389094) RA=41dc97bc(qtwebkit4.dll+0x003897bc) SP=0011d9c8, BVA=00000000

I found the reason of this exception, but I don't know if this data access abortion caused that webkit can't load any pages at all. is it the reason that caused webkit can't load anything at all? please give me a discussion, I would highly valued you views.

For the reason, please see:
http://www.microsoft.com/communities/newsgroups/list/en-us/default.aspx?dg=microsoft.public.windowsce.app.dev elopment&cat=en_us_087e3d88-8d55-4335-885e-ce6de1631cd4&lang=en&cr=us

http://www.microsoft.com/communities/newsgroups/list/en-us/default.aspx?dg=microsoft.public.windowsce.embedde d.vc&cat=en_us_f9a31b37-5fb3-4a3c-980b-f69667eb0b11&lang=en&cr=us


thanks