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Old 29th January 2009
gosha gosha is offline
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while I'm here today I have some general questions about how openbsd handles system resources.
I ask this because when I play a cd with cdio the music often halts for a moment (I guess while reading the disk), is this because my cd drive is not fast enough? (I have openbsd 4.3 on a macmini ppc g4 1.25mgz with 1g of ram).
Also, mplayer complains about my system being to slow for playing dvds and if I play a movie file it sometimes slows down.
I remember also postgres complaining about not having enough resources, but I think that was when I only had 256m of ram.
I recently increased the number of processes allowed per user, and it goes a bit better.

In a word, what else can I do to avoid these problems? Or is it just that I have a slow machine?
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Old 29th January 2009
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I have never seen problems with CD playing even on PII 333MHz and 128 Mb of RAM-a.
I watched DVDs with Ogle on PIII with 500MHz and 256Mb of RAM. The picture would freeze for a split of a second very rarely but I believe that was because of very old video card.
I have never run OpenBSD on MAC PPC so I wonder if it has to do with the architecture?
It is true though that if you are listening MP3 and lunch Firefox the sound would stop for a split of a second.
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Old 29th January 2009
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Quote:
Originally Posted by gosha View Post
...what else can I do...?
You can use the -cache feature of mplayer to buffer input.
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Old 29th January 2009
gosha gosha is offline
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the -cache option helps with files, but with real dvds xine seems to behave much better
tks
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Old 29th January 2009
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First of all, I would update to 4.4 ASAP, but that's just a personal opinion.

As for cdio(1) playback issues, it could be many things..
  • Using the cdplay command instead of the play command..
  • A scratched CD..
Most CD-ROM drives have a built-in firmware command that plays CD tracks, perhaps you noticed a small 3/4 wire cable between the drive and your soundcard/motherboard?

That command uses no resources, cdplay digitally extracts tracks.. this does take time and resources.

As for DVD's, I also recommend Ogle.. unfortunately, it doesn't always work.. and it cannot deinterlace video.

Hope it helps.
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Old 29th January 2009
gosha gosha is offline
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in fact I use "cdplay", but that's because I could never make "play" to work, it just stops without even starting to play.
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Old 29th January 2009
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The only other options are..
  • Use a different player.. something that will cache the content..
  • Use the cdrip functionality of cdio(1), play the audo from your hard drive.
Also, as for video/dvd.. consider increasing kern.shminfo.shmall to 32768 as recommended by a few ports.

(That won't be necessary in 4.5, was bumped recently.)
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Old 30th January 2009
gosha gosha is offline
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Thanks, I know about cdrip, I think I shall go with that. Otherwise, what other players do you recommend? Xmms doesn't seem to be able to directly play cds, or am I wrong?
My kern.shminfo.shmmax is already as high as 50331648, otherwise postgres wouldn't initdb.
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