Laszlo,
1) It's QML. Massive stinky pig which is __ALWAYS__ the wrong choice for
any project.
2) EGLFS is how we got here. The Wiki instructions are pure excrement
for anything more complex than "Hello World."
But that's fine because the bug report for the Wiki instructions has
been "Resolved" without any action taken. It sits out there spawning
countless other Wiki and blog posts all based on broken instructions.
https://www.youtube.com/watch?v=MAfCQ-t7xY0
On 10/19/2017 07:57 AM, Laszlo Agocs wrote:
Perhaps because it could be running with a pure software OpenGL
implementation (Mesa llvmpipe) which Raspbian and friends tend to use
to provide OpenGL on X11. (at least until VC4 becomes the default; in
the meantime acceleration is limited to when running directly on
Dispmanx, hence our general recommendation of using eglfs on embedded
boards in order to cut out the potentially problematic middle layers)
If that’s the case, then the performance issues showcased here have
nothing to with QML, Qt Quick or anything Qt really. Run with
QSG_INFO=1 to verify.
Cheers,
Laszlo
*From:*Interest
[mailto:interest-bounces+laszlo.agocs=qt...@qt-project.org] *On Behalf
Of *Roland Hughes
*Sent:* torsdag 19. oktober 2017 14.43
*To:* Vlad Stelmahovsky <vladstelmahov...@gmail.com>
*Cc:* interest <interest@qt-project.org>
*Subject:* Re: [Interest] Interest Digest Wiki instructions for PI
cross compile do not work for PostgreSQL support
Scroll down and watch the video. QML is an 800 lb gorilla trying to
ride in a 2 cylinder car.
http://www.logikalsolutions.com/wordpress/information-technology/raspberry-qt-part-12-qml-blows-big-stinky-chunks/
Nasty worthless resource pig which exists only to pursue script kiddies.
On 10/19/2017 04:38 AM, Vlad Stelmahovsky wrote:
QML is not that resource hogging as JS. dont use JS and you'll be fine
On Tue, Oct 17, 2017 at 8:11 PM, Roland Hughes
<rol...@logikalsolutions.com <mailto:rol...@logikalsolutions.com>>
wrote:
On 10/17/2017 12:54 PM, interest-requ...@qt-project.org
<mailto:interest-requ...@qt-project.org> wrote:
On ter?a-feira, 17 de outubro de 2017 08:11:13 PDT Roland Hughes
wrote:
The bug tracking system is under our control - it will not
just
disappear (from our perspective).
Oh yes it will!
Speaking as someone who has heard that soooooo many times
before, let's
just count a few for Qt shall we.
The Trolltech bug database was never going to just disappear
(from our
perspective). It did. A tiny fraction of the bugs migrated to
the new
system but most were mass exterminated with
The TT TT was not a public database. It existed internally only.
When we
switched to a public bugtracker, we could only export some entries
since many
had confidential customer information. Those that were exported had
to be
review by a person to make sure we were not violation any NDAs or
confidentiality.
That's the same reason why the code repository starts with Qt 4.5,
not earlier
versions.
"The version this bug is reported against is no longer
supported..."
The Nokia bug tracker was never going to just disappear (from
our
perspective). It did. Few, if any of the older bugs made it
into the
current database. Most were mass exterminated with
There was no Nokia database. We switched straight from the internal
tdb
(that's what it was called) to JIRA.
There was a Nokia bug base as well, at least for a while. I
and others entered bugs into it back in the day. Your argument
also re-enforces a great many bugs "simply disappeared."
I hear from quite a few companies in similar boats. They started
development for a medical/industrial device which had a lengthy
testing/approval process, filed bug reports for that version
only to see
them rot or fall victim to a mass extermination.
Most open source projects don't support old versions, since they
don't have
the manpower to do so.
The current owners of Qt and the current OpenSource maintainers
don't
offer or seem to understand the concept of an LTS (Long Term
Support)
version. They are constantly pursuing script kiddies and that
worthless
QML instead of maintaining the base which built them. This will
soon
force a fork in the OpenSource project. One which rips out all
of the
QML and focuses on nothing but bug fixes for 12 years. Yes, 12
years.
Again, offence taken.
Take all of the offense you want. Medical devices and
industrial controls need LTS versions, not resource hogging
QML features. Qt's chasing of the idiot phone market which has
6 months at best life spans is alienating and chasing away the
very industries which made Qt successful.
I don't know who plans on forking. There's no such division in the
community,
so any attempt to do so will probably start with very few
developers. Almost
certainly, fewer than critical mass to maintain the codebase.
See TQt (Trinity Project) for an example of a fork attempt.
It's easy to fork something you have been maintaining
internally for years. There _IS_ such a division. You don't
know about it because they don't come here. They justifiably
believe they've been abandoned. The relentless pursuit of "new
cool features" to please the phone crowd is causing the much
larger medical device and industrial control industries to
create their own LTS.
How many questions have you seen on here over the past 18
months about Qt 3? That project Harmman (sp?) calls about
periodically sells north of a million units per year and the
company is maintaining Qt 3 on its own so they can make minor
product enhancements which don't have to go though multi-year
clinical trials. They aren't the only calls I get about
products using Qt 3, 4.2, and the most likely soon to be
orphaned (if not already) 4.8. Every company I am contacted
about using earlier versions has their own staff maintaining
the code base today. They have had no other choice. If
anything, joining forces with someone who is not a competitor
but using the same tool set will lighten their load.
--
Roland Hughes, President
Logikal Solutions
(630)-205-1593
http://www.theminimumyouneedtoknow.com
http://www.infiniteexposure.net
http://www.johnsmith-book.com
http://www.logikalblog.com
http://www.interestingauthors.com/blog
http://lesedi.us/
http://onedollarcontentstore.com
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--
Best regards,
Vlad
--
Roland Hughes, President
Logikal Solutions
(630)-205-1593
http://www.theminimumyouneedtoknow.com
http://www.infiniteexposure.net
http://www.johnsmith-book.com
http://www.logikalblog.com
http://www.interestingauthors.com/blog
http://lesedi.us/
http://onedollarcontentstore.com
--
Roland Hughes, President
Logikal Solutions
(630)-205-1593
http://www.theminimumyouneedtoknow.com
http://www.infiniteexposure.net
http://www.johnsmith-book.com
http://www.logikalblog.com
http://www.interestingauthors.com/blog
http://lesedi.us/
http://onedollarcontentstore.com
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