I don't know how portable that would be??? I don't think /proc is available
by default on most non-Linux Unix-like OS I use...

On Fri, Oct 21, 2016 at 11:31 PM, Stefan Schmidt <ste...@osg.samsung.com>
wrote:

> Hello.
>
> On 22/10/16 00:14, Cedric BAIL wrote:
> > Hello,
> >
> > Before I embark on a crazy idea that may just break everything, I
> > would like to get some feedback. So one of the problem we are facing
> > with EFL is that with all those separated library we end up with some
> > serious time during application startup dedicated to linking. A work
> > around has been quicklaunch, but it is mostly unused. Also it does
> > only improve things once it has started, not much during startup time
> > where you still have to do all the linking.
> >
> > With PIE and -rdynamic that we use today on quicklaunch binary, we use
> > dlopen to get symbol from it and load this binary as if they were
> > library... So maybe we can actually use that same mechanism to
> > actually statically link efl with the quicklaunch server binary and
> > make all efl .so library just a symlink to that binary. Now,
> > enlightenment could actually try to rely on quicklaunch to start
> > itself and start other application. This should speed up boot time and
> > application start up time. The reason to make it the default way of
> > doing things is to make sure that it is maintained and work.
>
> Are there actual numbers about speed improvement? Are we really needed
> this speedup so badly? As you can already see from this two sentences
> I'm not really in favor of it. See below for some arguments.
>
> > Now some of the drawback. First it is a trick, meaning most people
> > that will try to dig in will get confused at first on what is going on
> > and we need to document it. Building EFL is going to become even more
> > complex (I don't know yet how to generate the proper symlink), let's
> > enjoy more of the autofoo dark art.
>
> To be honest here, this one alone is a killer in my opinion. What we
> have is already complex enough. I often enough find myself in situation
> where I bang my head against the wall until I get the system to do what
> I want.
>
>   All binary will happear as if they
> > are just a fork of enlightenment and you will need to use some flags
> > to ps/top and friends to ask them to read /proc to get the new command
> > line otherwise all binary have the same name.
>
> And that one is the nail in the coffin in my opinion.
>
> > I think that quicklaunch will require also to be improved by being
> > made more robust/with a larger set of feature (nicely opposing goal).
> > Eventually it should handle application restart for example (What
> > enlightenment_start does today)... which annoy me a bit. Also we would
> > likely be on a path to reimplement systemd --user here. Something I
> > have tried to avoid for some time.
> >
> > Ok, does anyone see some serious blocker to this idea ? Impact on
> > packager to much ? Something I missed ? Something that need to be
> > clarified ?
>
> I have a hard time to see that this drastic change is really worth some
> improved launch time. Especially when you keep in mind that we are
> planning to merge some of our libs anyway thus reducing the amount of
> linking.
>
> regards
> Stefan Schmidt
>
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