Re: [Gap-dev-discuss] Cynthiune loading large playlist

[Sebastian Reitenbach]

On Saturday, June 2, 2012 15:56 CEST, Philippe Roussel <address@hidden> wrote:

> Hi Sebastian,
>
> Thanks for the details.
>
> I quickly tried with ulimit -n 200 without any problem but I'll recheck
> everything when I have more time.
>
> What I don't understand is that when the playlist is shown, lsof on
> Cynthiune doesn't list any media file opened, which should mean that the
> file handles are correctly closed ?

When opening the Playlist on a different computer, where the files are not
available, then the problem doesn't show up, otherwise I'd have attached
my playlist. I also recognized, that the problem doesn't seem to happen
always, it took me about 3 or 5 times to try to reproduce it. Just tested
different directories, my home directory, and then one level down, the

directory where my music is in.

Sebastian



$ fstat -p 24801
USER     CMD          PID   FD MOUNT        INUM MODE       R/W    SZ|DV
sebastia Cynthiune  24801 text /usr/local  1094403 -rwxr-xr-x   r   679362
sebastia Cynthiune  24801   wd /home     8825856 drwxr-xr-x   r     1024
sebastia Cynthiune  24801    0 /           52473 crw--w----  rw    ttyp4
sebastia Cynthiune  24801    1 /           52473 crw--w----  rw    ttyp4
sebastia Cynthiune  24801    2 /           52473 crw--w----  rw    ttyp4
sebastia Cynthiune  24801    3 pipe 0xdaa0fe10 state:
sebastia Cynthiune  24801    4 pipe 0xdaa0fe10 state:
sebastia Cynthiune  24801    5 pipe 0xda377f7c state:
sebastia Cynthiune  24801    6 pipe 0xda377f7c state:
sebastia Cynthiune  24801    7* unix stream 0xd4ed0f80
sebastia Cynthiune  24801    8 /home     9191519 -rwxrwxrwx   r  7442494
sebastia Cynthiune  24801    9 pipe 0xda377cf4 state:
sebastia Cynthiune  24801   10 pipe 0xda377cf4 state:
sebastia Cynthiune  24801   11* unix stream 0xd4fdd040 <-> 0xd4ddba40
sebastia Cynthiune  24801   12* unix stream 0xd4fa48c0
sebastia Cynthiune  24801   13* unix stream 0xd4ee3200 <-> 0xd4f11700
sebastia Cynthiune  24801   14 /home     9191519 -rwxrwxrwx   r  7442494
sebastia Cynthiune  24801   15 /home     9191519 -rwxrwxrwx   r  7442494
sebastia Cynthiune  24801   16 /home     9191519 -rwxrwxrwx   r  7442494
sebastia Cynthiune  24801   18 /home     9191519 -rwxrwxrwx   r  7442494
sebastia Cynthiune  24801   19 /home     9191519 -rwxrwxrwx   r  7442494
sebastia Cynthiune  24801   20 /home     9191519 -rwxrwxrwx   r  7442494
sebastia Cynthiune  24801   21 /home     9191519 -rwxrwxrwx   r  7442494
sebastia Cynthiune  24801   22 /home     9191524 -rwxrwxrwx   r  8112644
sebastia Cynthiune  24801   23 /home     9191524 -rwxrwxrwx   r  8112644
sebastia Cynthiune  24801   24 /home     9191524 -rwxrwxrwx   r  8112644
sebastia Cynthiune  24801   25 /home     9191519 -rwxrwxrwx   r  7442494
sebastia Cynthiune  24801   26 /home     9191524 -rwxrwxrwx   r  8112644
sebastia Cynthiune  24801   27 /home     9191524 -rwxrwxrwx   r  8112644
sebastia Cynthiune  24801   28 /home     9191524 -rwxrwxrwx   r  8112644
sebastia Cynthiune  24801   29 /home     9191519 -rwxrwxrwx   r  7442494
sebastia Cynthiune  24801   30 /home     9191513 -rwxrwxrwx   r  6493098
sebastia Cynthiune  24801   31 /home     9191513 -rwxrwxrwx   r  6493098
sebastia Cynthiune  24801   32 /home     9191513 -rwxrwxrwx   r  6493098
sebastia Cynthiune  24801   33* unix stream 0xd5221980 <-> 0xd51ca980
sebastia Cynthiune  24801   34 /home     9191513 -rwxrwxrwx   r  6493098
sebastia Cynthiune  24801   35 /home     9191513 -rwxrwxrwx   r  6493098
sebastia Cynthiune  24801   36 /home     9191513 -rwxrwxrwx   r  6493098
sebastia Cynthiune  24801   37 /home     9191519 -rwxrwxrwx   r  7442494
sebastia Cynthiune  24801   38 /home     9191512 -rwxrwxrwx   r  8045002
and so on, up to number 126.

>
> Thanks,
> Philippe
>
> Le 02/06/2012 15:42, Sebastian Reitenbach a écrit :
> >
> > On Saturday, June 2, 2012 15:01 CEST, Philippe Roussel <address@hidden> 
> > wrote:
> >
> >> Hi,
> >>
> >> Le 02/06/2012 11:20, Sebastian Reitenbach a écrit :
> >>> Hi,
> >>>
> >>> when having a large playlist in Cynthiune, then weird things happen for 
> >>> me. It seems, there are too many
> >>> file descriptors open. It seems, Cynthiune checks all files in the 
> >>> playlist, and keeps an open file descriptor for it.
> >>
> >> How many files, and what kind of files, are we talking about ?
> >>
> >> I just created a playlist with 1007 items and while it is quite slow to
> >> start Cynthiune, things seem to work.
> >
> > On OpenBSD, /etc/login.conf defines resource limits. There I have:

> >
> > openfiles-cur=128
> >
> > 128 is generally fine, even Firefox and other beasts work fine with that 
> > limit.
> >
> > I think you can try to reproduce the problem on Linux when you lower the 
> > open files using
> > ulimit -n 1000
> > maybe for your case, or something lower.
> >
> > On a linux box where I have access, the open files limit is set to 1024, 
> > maybe for you too, and
> > you just missed it by a small number of songs in your playlist?
> >
> > How I did it: in the Add music files dialog, I just had my home directory 
> > open, and I definitely
> > have more than 128 audio files in there, which Cynthiune could pick up. 
> > Mostly mp3, but also FLAC,
> > Ogg, and some others.
> > When I clicked there the OK button, It already started to behave weirdo, 
> > then I tried to restart Cynthiune
> > on the console, and saw the console output. I deleted the playlist, to be 
> > able to start Cynthiune again.
> >
> > Sebastian
> >
> >
> >>
> >> Philippe
> >>
> >
> >
> >
> >
> >
>