[Interest] Extremely sluggish browser performance in Qt 5.5

[Yuvraaj Kelkar]

If you have a sample application, I can compile for Mac windows and Linux
and try it out.
On Jun 18, 2015 7:08 PM, "John C. Turnbull" <ozemale at ozemail.com.au> wrote:

> Unfortunately I only have access to a Windows machine :-(
>
> -----Original Message-----
> From: interest-bounces+ozemale=ozemail.com.au at qt-project.org
> [mailto:interest-bounces+ozemale=ozemail.com.au at qt-project.org] On Behalf
> Of
> rpzrpzrpz at gmail.com
> Sent: Friday, June 19, 2015 11:41 AM
> To: interest at qt-project.org
> Subject: Re: [Interest] Extremely sluggish browser performance in Qt 5.5
>
> On 6/18/2015 5:38 PM, John C. Turnbull wrote:
> > All I am doing is running the WebEngine Tab Browser example from
> > Creator
> > 3.4.0 which comes with the version of Qt that I downloaded which is
> > 5.5.0 MSVC2013 64-bit.  I have selected to build for RELEASE and then
> > I just run it.
> >
> > The machine is a powerful Dell Precision 7500 Workstation with 2 x
> > Xeons and 64G of RAM and a Quadro FX 5800 GPU.
> >
> > The browser performance is absolutely woeful to the point of being
> unusable.
> >
> > *From:*Mark Langezaal [mailto:mark.langezaal at xs4all.nl]
> > *Sent:* Thursday, June 18, 2015 9:11 PM
> > *To:* John C. Turnbull; interest at qt-project.org
> > *Subject:* Re: [Interest] Extremely sluggish browser performance in Qt
> > 5.5
> >
> > Perhaps you have linked to a non optimized Qt package? (-O0 in stead
> > of -O2)
> >
> > Not sure how this could happen.
> >
> > Did you compile it yourself?
> >
> > Mark
> >
> > -------- Oorspronkelijk bericht --------
> >
> > Van: "John C. Turnbull"
> >
> > Datum:18-06-2015 07:25 (GMT+01:00)
> >
> > Aan: interest at qt-project.org <mailto:interest at qt-project.org>
> >
> > Onderwerp: Re: [Interest] Extremely sluggish browser performance in Qt
> > 5.5
> >
> > Anyone???
> >
> > *From:*John C. Turnbull [mailto:ozemale at ozemail.com.au]
> > *Sent:* Monday, June 15, 2015 7:31 AM
> > *To:* 'interest at qt-project.org'
> > *Subject:* RE: [Interest] Extremely sluggish browser performance in Qt
> > 5.5
> > *Importance:* High
> >
> > Hasn't anyone else tried out the WebEngineView in Qt 5.5 QML?  I just
> > can't explain why it takes minutes to load pages that load
> > instantaneously in Chrome or Firefox.  This is really hurting us,
> > especially the unusable Google Maps.
> >
> > *From:*interest-bounces+ozemale=ozemail.com.au at qt-project.org
> > <mailto:interest-bounces+ozemale=ozemail.com.au at qt-project.org>[mailto
> > :interest-bounces+ozemale=ozemail.com.au at qt-project.org]
> > *On Behalf Of *John C. Turnbull
> > *Sent:* Friday, June 12, 2015 5:41 AM
> > *To:* interest at qt-project.org <mailto:interest at qt-project.org>
> > *Subject:* [Interest] Extremely sluggish browser performance in Qt 5.5
> >
> > I am just trying out the "nano browser" in Qt 5.5 on Windows 7 64-bit
> > and find it almost unusable.
> >
> > Loading **any** website is slow but it is particularly noticeable with
> > Google Maps.  It can take more than a minute to render the initial map
> > and then zooming in first shows just a scaled and pixelated version of
> > the map and then it can several minutes for the details to be rendered
> > properly.  Also, switching from map to Earth/Satellite view seems to
> > take forever too.
> >
> > What could be causing this incredible slowness?  It's not the network
> > itself as the same sites load instantaneously in other browsers like
> > Chrome and Firefox on the same machine and there is no proxy involved.
> >
> > Given that the primary use case I had intended for the Qt browser
> > implementation is Google Maps, this is all very worrying!
> >
> > Thanks,
> >
> > -jct
> >
> >
> >
> > _______________________________________________
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> > Interest at qt-project.org
> > http://lists.qt-project.org/mailman/listinfo/interest
> >
>
> Can you run the same test on OSX and or Android?
>
> Just provide a chance to see if 5.5 web is sluggish across more than
> platform.
>
>
> --
> No spell checkers were harmed during the creation of this message.
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