On Sun, 21 Aug 2016 14:12:46 +0100 Al Poole <nets...@gmail.com> said:

> Hello,
> 
> Maybe a limit on the number of processes???

there is a limit:

   int maxnum = (eina_cpu_count() / 2) + 1;

that's the limit. however many cpu cores libc reports divided by 2.. plus 1.

> https://www.enlightenment.org/ss/display.php?image=e-57b9a7baf33cd3.64891532.jpg
> 
> Am finding here, OpenBSD, that I'm not having thumbnails generate
> anything...regardless of the above just have black windows when moving
> through the video rather than preview.

i am not sure why. generic loader not working? something else? no info here to
go by.

> On Sun, Aug 21, 2016 at 2:05 PM, Carsten Haitzler <ras...@rasterman.com>
> wrote:
> 
> > On Sun, 21 Aug 2016 14:22:33 +0200 Massimo Maiurana <maiur...@gmail.com>
> > said:
> >
> > > Carsten Haitzler (The Rasterman) ha scritto il 21/08/2016 alle 14:03:
> > > > On Sun, 21 Aug 2016 10:42:47 +0200 Massimo Maiurana <
> > maiur...@gmail.com>
> > > > said:
> > > >
> > > >> Carsten Haitzler (The Rasterman) ha scritto il 21/08/2016 alle 01:42:
> > > >>> On Sat, 20 Aug 2016 19:04:44 +0200 Massimo Maiurana <
> > maiur...@gmail.com>
> > > >>> said:
> > > >>>
> > > >>>> Carsten Haitzler (The Rasterman) ha scritto il 20/08/2016 alle
> > 14:17:
> > > >>>>> On Sat, 20 Aug 2016 09:41:00 +0200 Massimo Maiurana <
> > maiur...@gmail.com>
> > > >>>>> said:
> > > >>>>>
> > > >>>>>> There is an annoying issue that I found in rage from some months
> > ago
> > > >>>>>> but I've always forgot to report it here, sorry :(
> > > >>>>>>
> > > >>>>>> There are cases where rage_thumb just go crazy, spawns several
> > > >>>>>> processes, eats up the cpu and reamins active even if I close
> > rage, so
> > > >>>>>> I have to "killal -9 rage_thumb". Tipically it happens if I
> > navigate
> > > >>>>>> the movie clicking with the mouse in the progress bar, so in
> > order to
> > > >>>>>> avoid it I use to navigate via arrow keys.
> > > >>>>>
> > > >>>>> well - it's generating thumbanils for the whole movie (every 10
> > seconds
> > > >>>>> or so it snapshots). it literally sits and loads the movie relying
> > on
> > > >>>>> the gst generic evas loader to load a specific frame # from the
> > video
> > > >>>>> file. it loads, scales down, and saves to a big eet archive with
> > all
> > > >>>>> the thumbs in it for the video...
> > > >>>>>
> > > >>>>> why is it spinning? some bakctrace, some trace/debug as to what
> > it's
> > > >>>>> spinning on etc.... would be useful. :)
> > > >>>>
> > > >>>> I would like to help but need also help on how to generate
> > backtraces :)
> > > >>>
> > > >>> gdb /usr/local/lib/rage/utils/rage_thumb `pidof rage_thumb`
> > > >>>
> > > >>> ...
> > > >>>
> > > >>> bt
> > > >>>
> > > >>> :)
> > > >>>
> > > >>> also getting the file it is choking on would be nice. the file will
> > be on
> > > >>> the cmdline passed to rage_thumb..
> > > >>
> > > >> Ok, I did this: I opened a movie, clicked on some points in the
> > progress
> > > >> bar to go forward and the cpu went 100% (both cores). At this point I
> > > >> had six instances of rage_thumb running. This is the command line:
> > > >> rage /home/max/Video/Il.Volo.Del.Falco.2014.iTALiAN.BDRiP.XviD-
> > HDi.avi
> > > >>
> > > >> Then I closed rage but all rage_thumb processes still was alive and
> > > >> kicking... too kicking :)
> > > >> Htop reported small cpu usage for rage_thumb, every process was eating
> > > >> just around 1/1.5% of it. Top made me see that there were many
> > > >> evas_image_load processes that instead was eating much more cpu, 10%
> > and
> > > >> occasionally 20% each process. I generated a backtrace from one of the
> > > >> rage_thumb processes, I don't know how it is useful but it is
> > attached.
> > > >> In the meantime all processes quitted, so it is just a matter of time
> > > >> waiting they do their job, but the problem is that this jog is cpu and
> > > >> time consuming :)
> > > >>
> > > >> Should I run gdb on evas_image_load and generate a backtrace?
> > > >
> > > > doesn't sound hung to me. it sounds like its actually working. it may
> > take
> > > > several minutes to thumbnail the video depending on how long it is...
> > >
> > > It doesn't hang but it makes my pc unresponsive for a long time, even
> >
> > no - i meant that rage_thumb isn't hung - it sounds by your description,
> > like
> > it's doing it's job. it's trying to generate thumbnails...
> >
> > i wonder if the issue is that the stream cannot be seeked and thus it's
> > simply
> > repeatedly generating frame 0 because a seek to a point fails...
> >
> > if you do:
> >
> > strace -f -o ~/log -p `pidof rage_thumb`
> >
> > then grep through the file for "exec" - you should find the exec lines
> > that run
> > the generic loader... what are the aerguments? there should be the file
> > plus a
> > number. the number should be large - eg going up by 1000 per second being
> > snapped. it will try and get an image for every 10 seconds from memory so
> > number should be going up by 10k each run). maybe check the strace log and
> > see
> > what the child processes are exiting with (0 for success? something else?).
> >
> > > after I close rage. FWIU there should be a limit in how much cpu the
> > > thumbnailing processes can take, or a limit in the number of
> >
> > it sets the priority of the video thumb to 10 - the higher the priority
> > value
> > the less likely the system will be to assign cpu to it - or that's how it
> > should work. this should be inherited by child processes too. this is the
> > nice
> > value fyi (it uses setpriority() - see manual page):
> >
> > "The default nice value is {NZERO}; lower nice values shall  cause  more
> > favorable   scheduling."
> >
> > > thumbnailing processes which can be run at the same time, or at the very
> > > least an option to turn off thumbnailing. I understand that my PC is
> > > quite old (6 years), but I would like to keep using it as much as
> > > possible :)
> >
> > i'm not going to make it an option. thumbnailing of videos is central ro
> > rage
> > and being able to know what on earth you are dealing with. you haven't
> > seen the
> > browser mode yet then where it'll be plainly obvious that no thumbnail
> > makes the
> > ui pretty poor. it's central tot he ui design.
> >
> > > >>>> If it would segvs i would do it via a "bt" command in gdb, but it
> > > >>>> doesn't crash and also rage_thumb keeps running in multiple
> > processes
> > > >>>> when I stop rage, so how should I trace its activities?
> > > >>>
> > > >>> ^^^^^ you can attach to an existing process any time. when you
> > attach the
> > > >>> process will be paused. you can grab a bt then. you can let it
> > continue
> > > >>> running with "c" (continue) cmd any time. you can pause it again
> > with ctrl
> > > >>> +c in gdb an get another backtrace. switch stack frame with "fr N"
> > where N
> > > >>> matches the backtrace number. list the code where you are at with
> > "l".
> > > >>> list a specific line number in that file in context with "l 1234".
> > print a
> > > >>> variable you see with "p varname" dereference a pointer (like c/c++
> > does
> > > >>> all the time) with "p *varname" or if its a struct geta  member with
> > "p
> > > >>> varname->member". gdb will even be able to tab complete these like a
> > shell
> > > >>> does with files. :)
> > > >>>
> > > >>> learning gdb is a very powerful thing. you can find out so much
> > useful
> > > >>> info about a process... :)
> > > >>>
> > > >>>>>
> > > >>>>>> Thanks
> > > >>>>>> Massimo
> > > >>>>>>
> > > >>>>>> Carsten Haitzler (The Rasterman) ha scritto il 20/08/2016 alle
> > 05:45:
> > > >>>>>>> So here is a new release of Rage.
> > > >>>>>>>
> > > >>>>>>> It is a simple video and audio player intended to be slick yet
> > > >>>>>>> simplistic, much like Mplayer. You can provide 1 or more files
> > to play
> > > >>>>>>> on the command-line or just DND files onto the rage window to
> > insert
> > > >>>>>>> them into the playlist. You can get a visual representation of
> > > >>>>>>> everything on the playlist by hitting the / key, or just
> > hovering your
> > > >>>>>>> mouse over the right side of the window. Mouse back over the
> > left side
> > > >>>>>>> of the window to dismiss it or press the key again. It has a full
> > > >>>>>>> complement of key controls if you see the README for the full
> > list. It
> > > >>>>>>> will automatically search for album art for music files, if not
> > > >>>>>>> already cached, and display that. It even generates thumbnails
> > for
> > > >>>>>>> the timeline of a video and allows you to preview the position on
> > > >>>>>>> mouseover of the position bar at the bottom of the window.
> > > >>>>>>>
> > > >>>>>>> If you run it without any files as arguments, it will go into
> > > >>>>>>> "browser" mode where it will index $HOME/Videos and basically
> > become
> > > >>>>>>> a simple media center.
> > > >>>>>>>
> > > >>>>>>> A feature list at this point:
> > > >>>>>>>
> > > >>>>>>>   * Play video and audio files
> > > >>>>>>>   * Support a playlist via command-line
> > > >>>>>>>   * Insert to playlist via DND
> > > >>>>>>>   * Controls hide on mouse idle, and appear on mouse movement
> > > >>>>>>>   * Fullscreen mode support with automatic "no blank" support
> > > >>>>>>>   * Playlist visual previews and controls
> > > >>>>>>>   * Subtitle file support
> > > >>>>>>>   * Supports Gstreamer 0.10, Gstreamer 1.x, Xine and VLC as media
> > > >>>>>>> engines via Emotion modules
> > > >>>>>>>   * Selection of media back-end via command-line
> > > >>>>>>>   * Album art fetch and caching
> > > >>>>>>>   * Video thumbnail timeline generation and caching
> > > >>>>>>>   * Works with any Evas engine (OpenGL acceleration, pure
> > software
> > > >>>>>>> etc.)
> > > >>>>>>>   * Works in X11, Wayland and Framebuffer direct support
> > > >>>>>>>   * Accelerated seek on keyboard fowrard/reverse
> > > >>>>>>>   * Drag gestures for seeking
> > > >>>>>>>   * Special different UI modes for pure audio and video
> > > >>>>>>>   * Media center browser/indexer mode
> > > >>>>>>>   * Simeline thumbails of videos get generated and displayed
> > when over
> > > >>>>>>> seek bar
> > > >>>>>>>
> > > >>>>>>> If you want to see more go to the about page at
> > > >>>>>>> https://www.enlightenment.org/p.php?p=about/rage
> > > >>>>>>>
> > > >>>>>>> http://download.enlightenment.org/rel/apps/rage/rage-0.2.0.
> > tar.gz
> > > >>>>>>> http://git.enlightenment.org/apps/rage.git
> > > >>>>>>>
> > > >>>>>>
> > > >>>>>>
> > > >>>>>> --
> > > >>>>>> Massimo Maiurana
> > > >>>>>> Ragusa (RG)
> > > >>>>>>
> > > >>>>>> ------------------------------------------------------------
> > ------------------
> > > >>>>>> _______________________________________________
> > > >>>>>> enlightenment-devel mailing list
> > > >>>>>> enlightenment-devel@lists.sourceforge.net
> > > >>>>>> https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
> > > >>>>>>
> > > >>>>>
> > > >>>>>
> > > >>>>
> > > >>>>
> > > >>>> --
> > > >>>> Massimo Maiurana
> > > >>>> Ragusa (RG)
> > > >>>>
> > > >>>
> > > >>>
> > > >>
> > > >>
> > > >> --
> > > >> Massimo Maiurana
> > > >> Ragusa (RG)
> > > >
> > > >
> > >
> > >
> > > --
> > > Massimo Maiurana
> > > Ragusa (RG)
> > >
> >
> >
> > --
> > ------------- Codito, ergo sum - "I code, therefore I am" --------------
> > The Rasterman (Carsten Haitzler)    ras...@rasterman.com
> >
> >
> > ------------------------------------------------------------
> > ------------------
> > _______________________________________________
> > enlightenment-devel mailing list
> > enlightenment-devel@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
> >
> ------------------------------------------------------------------------------
> _______________________________________________
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> 


-- 
------------- Codito, ergo sum - "I code, therefore I am" --------------
The Rasterman (Carsten Haitzler)    ras...@rasterman.com


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