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Month: September 2013

Re: [trinity-devel] My opinion on Trinity project quality

From: Aleksey Midenkov <midenok@...>
Date: Wed, 18 Sep 2013 12:22:41 +0400
On Mon, Sep 16, 2013 at 10:14 PM, Timothy Pearson
<kb9vqf@...> wrote:
>> On Sat, Sep 14, 2013 at 5:41 AM, Timothy Pearson
>> <kb9vqf@...> wrote:
>>>> 2013/9/13 Aleksey Midenkov <midenok@...>
> <snip>
>> There is no need in that. UI programs are not high-load programs, they
>> don't
>> require bleeding edge performance optimization. Everything worked fine
>> there
>> before Trinity! You've digging wrong places. Do UI, not system libs.
> So in other words, our users are supposed to just put up with frequent
> unresolvable crashes that were traced back to fundamental flaws in
> Qt3/TQt3, while we change the stable UI that our users expect us NOT to
> significantly change?  This is not 1999 anymore, users own systems with
> multiple cores as a rule now, and some of the original KDE 3 code simply
> was not thread safe!  Sure, it worked most of the time on hyperthreaded
> processors, but not on real multicore systems, just search our bugtracker
> for threading related bugs for a sampling of the problems *fixed* by
> changing the TQt3 library.

You can fix thread-safety as it is usually fixed: put mutexes, rw
locks, etc. in right places of program and use thread-local variables.
You don't need to get into the deeps of Qt. And for sure, you don't
need to change API for that.

In fact, I suspect that you will only add instability, not fix it. I
already had crashes on 13 (they were not too often before) and I've
read from people that noticed the same after they installed this

> As I have mentioned before, if you would like to see TDE on Qt4, why don't
> you figure out a way to port the entire codebase over, or at least start
> porting components yourself?  You will find that it is not an easy task!
> Qt4 does not offer critical components that Qt3 did, and hacking around
> the missing features *will* slow TDE down on many systems, just as KDE4
> slowed down.  (Yes, I have tried!).

I don't want Qt4. I'm Ok with everything except the UI. I said, that
if you want more sophisticated lib, then do it with Qt4, not modify
Qt3. If you say that Qt4 is missing something, I'm sure that there is
some solution with additional libs. I not quite understand, why moving
some functionality from Qt3 to KDE4 has slowed it down. Is it because
programmers at KDE worse, than at Trolltech? Again, there should
already be ready lib that does it good.

> I don't want to get into this argument yet again.  If Qt4/Qt5 become
> suitable for our use in the future, then we will consider a port.  Until
> then, TDE continues to be available for X11 based systems as it always
> has.

The problem is not with that. The problem is with that you are trying
to comprehend incomprehensible. I see the progress and the results.

> Tim