lots of luatex process/instances (ps xa| grep lua / top -----sort by memory)

lots of luatex process/instances (ps xa| grep lua / top -----sort by memory)

[Amaël Broustet]

Dear context users,
at first a lot of warm thanks for help and comments on using
t-simpleslides.

On a different matter, I now have the following problem :
I do a lot of testing trying compiling my slides (using the following
command : "context essai.tex"). Sometimes, I get errors and an
interactive prompt that I kill with either ctrl+C or ctrl+Z (at random).

I noticed that my computer was swapping (2Go RAM). 
With "ps xa  | grep lua" I get 34 process.    

Using "top" and sorting by memory used the processes, I noticed 7
instances of luatex and 5 of texlua on the first page for a total of
800MB of resident memory.

Did I miss something using context (I do "context essai.tex" each time
that I want compile changes) ?

"killall luatex" and kill -15 PID does nothing.


Best,
Amaël  

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Re: lots of luatex process/instances (ps xa| grep lua / top -----sort by memory)

[Arthur Reutenauer]

>                                 Sometimes, I get errors and an
> interactive prompt that I kill with either ctrl+C or ctrl+Z (at random).

  You shouldn't do that.  Type 'x' at the error prompt, it makes
(Lua)TeX terminate.  Ctrl+C sometimes isn't enough to kill LuaTeX,
though I have no idea why; as for Ctrl+Z, it never kills anything, it
sends the suspend signal (you should see the process status with top).

> "killall luatex" and kill -15 PID does nothing.

  kill -1 is usually enough.

	Arthur
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Re: lots of luatex process/instances (ps xa| grep lua / top -----sort by memory)

[Mohamed Bana]

I've also noticed something along those lines.  I've also found that 
CTRL+Z/C doesn't really exit the program --- there are stale processes 
still lying around.

What I described is general, it tends to happen across big documents.

Is this a known problem?

� Broustet wrote:
> Dear context users,
> at first a lot of warm thanks for help and comments on using
> t-simpleslides.
> 
> On a different matter, I now have the following problem :
> I do a lot of testing trying compiling my slides (using the following
> command : "context essai.tex"). Sometimes, I get errors and an
> interactive prompt that I kill with either ctrl+C or ctrl+Z (at random).
> 
> I noticed that my computer was swapping (2Go RAM). 
> With "ps xa  | grep lua" I get 34 process.    
> 
> Using "top" and sorting by memory used the processes, I noticed 7
> instances of luatex and 5 of texlua on the first page for a total of
> 800MB of resident memory.
> 
> Did I miss something using context (I do "context essai.tex" each time
> that I want compile changes) ?
> 
> "killall luatex" and kill -15 PID does nothing.
> 
> 
> Best,
> Amaël  
> 
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
> 
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive  : https://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: lots of luatex process/instances (ps xa| grep lua / top -----sort by memory)

[Amaël Broustet]

Thank you !
it's ok now.

Le dimanche 10 mai 2009 à 20:14 +0200, Arthur Reutenauer a écrit :
> >                                 Sometimes, I get errors and an
> > interactive prompt that I kill with either ctrl+C or ctrl+Z (at random).
> 
>   You shouldn't do that.  Type 'x' at the error prompt, it makes
> (Lua)TeX terminate.  Ctrl+C sometimes isn't enough to kill LuaTeX,
> though I have no idea why; as for Ctrl+Z, it never kills anything, it
> sends the suspend signal (you should see the process status with top).
> 
> > "killall luatex" and kill -15 PID does nothing.
> 
>   kill -1 is usually enough.
> 
> 	Arthur
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
> 
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive  : https://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: lots of luatex process/instances (ps xa| grep lua / top -----sort by memory)

[Amaël Broustet]

On a small example : ctrl+C works, ctrl+Z leaves unkillable (either -15
or -1) luatex and texlua process. kill -9 leaves zombies.
killing the parent shell clean everything. 


Le dimanche 10 mai 2009 à 19:25 +0100, Mohamed Bana a écrit :
> I've also noticed something along those lines.  I've also found that 
> CTRL+Z/C doesn't really exit the program --- there are stale processes 
> still lying around.
> 
> What I described is general, it tends to happen across big documents.
> 
> Is this a known problem?
> 
> � Broustet wrote:
> > Dear context users,
> > at first a lot of warm thanks for help and comments on using
> > t-simpleslides.
> > 
> > On a different matter, I now have the following problem :
> > I do a lot of testing trying compiling my slides (using the following
> > command : "context essai.tex"). Sometimes, I get errors and an
> > interactive prompt that I kill with either ctrl+C or ctrl+Z (at random).
> > 
> > I noticed that my computer was swapping (2Go RAM). 
> > With "ps xa  | grep lua" I get 34 process.    
> > 
> > Using "top" and sorting by memory used the processes, I noticed 7
> > instances of luatex and 5 of texlua on the first page for a total of
> > 800MB of resident memory.
> > 
> > Did I miss something using context (I do "context essai.tex" each time
> > that I want compile changes) ?
> > 
> > "killall luatex" and kill -15 PID does nothing.
> > 
> > 
> > Best,
> > Amaël  
> > 
> > ___________________________________________________________________________________
> > If your question is of interest to others as well, please add an entry to the Wiki!
> > 
> > maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> > webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> > archive  : https://foundry.supelec.fr/projects/contextrev/
> > wiki     : http://contextgarden.net
> > ___________________________________________________________________________________
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
> 
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive  : https://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________

___________________________________________________________________________________
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: lots of luatex process/instances (ps xa| grep lua / top -----sort by memory)

[Arthur Reutenauer]

> On a small example : ctrl+C works, ctrl+Z leaves unkillable (either -15
> or -1) luatex and texlua process.

  Again, that's because Ctrl+Z, in a normal Unix environment, only
suspends the process, it never kills it.  Try kill -19 first (SIGCONT),
then kill -15 or -1.

  You can try the following experiment: run a small example file with an
error and type Ctrl+Z.  You may think you exited the process, but now
type "fg".  You should recover the LuaTeX run in the exact state you
left it.  It has not been killed.

	Arthur
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Re: lots of luatex process/instances (ps xa| grep lua / top -----sort by memory)

[Martin Schröder]

2009/5/10, Amaël Broustet <context@amael.net>:
>  "killall luatex" and kill -15 PID does nothing.

Don't use killall. Linux != Unix.

Best
   Martin
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