Hello Carlo.
The ranters! comment:
I can understand your way of looking at things.
But you'd better be a bit more careful with statements like these below,
if you don't really know what's going on.
Just FYI: All possible traces - Ingo asked for - are on Ingos desk!
My intention is to support you folks as good as I can to get the issues solved.
As a user, with a rather limited knowledge about ck or cfs, I am just able to
judge on the results these patches are delivering.
I'll go always for the one - if I have a choice - matching my requirements!
Since there is just one patch left in the near future, at least the way it looks to me today,
I am trying of course to support Ingo the best I can to identify potential issues.
Constructive critism - always welcome!
Best regards
\Klaus
> -----Urspr?ngliche Nachricht-----
> Von: Carlo Florendo <[email protected]>
> Gesendet: 02.08.07 08:27:01
> An: Lenar L?hmus <[email protected]>
> CC: Klaus Schulz <[email protected]>, [email protected], [email protected], [email protected]
> Betreff: Re: ck vs. cfs : realtime audio performance
>
> Lenar L?hmus wrote:
> > Klaus Schulz wrote:
> >>> I am currently testing the 2.6.22.1 cfs-rt9 vs. ck1 on my rather pure
> >>> realtime high-end-audio setup. (NO X, just a terminal, streaming
> >>> .wav. I am using my own written player and brutefir as the audio
> >>> engine.)
> >>> Comment: This is not a standard (amarok or xmms setup), all buffers in
> >>> the chain are very small. Any problem will immidetialy end up in xruns.
> >>> The sounddriver, HW (pci-bus etc.) are tweaked accordingly
> >>> Until now ck1 on 2.6.22 is giving me better results (less audible
> >>> distortions) and runs extremely stable compared to cfs. Under ck I
> >>> ran my player with schedtool -R -p 98, which was better than
> >>> running it e.g. with nice -20 Both setups under cfs were giving me
> >>> worse results than ck.
> >>> With CFS I also experienced XRUNS from time to time, what never happened
> >>> with ck.
>
> See, this is exactly the problem of the SD ranters. A ranter posts a
> problem, doesn't give reproducability hints, and neither provides technical
> detail, not even the slightest relevant stats. And the most irritating
> part is that the code that the OP wrote (or at least its relevant parts) is
> not even available for download.
>
> I was wondering why the OP need timers for audio playback. What type of
> audio? PCM, MIDI? Once does not need timers for PCM playback but for MIDI.
>
> SD ranters. Pure rants.
>
> Thank you very much.
>
> Best Regards,
>
> Carlo
>
>
> --
> Carlo Florendo
> Softare Engineer/Network Co-Administrator
> Astra Philippines Inc.
> UP-Ayala Technopark, UP Campus Diliman
> 1101 Quezon City, Philippines
> http://www.astra.ph
>
> --
> The Astra Group of Companies
> 5-3-11 Sekido, Tama City
> Tokyo 206-0011, Japan
> http://www.astra.co.jp
>
>
> --
> Carlo Florendo
> Softare Engineer/Network Co-Administrator
> Astra Philippines Inc.
> UP-Ayala Technopark, UP Campus Diliman
> 1101 Quezon City, Philippines
> http://www.astra.ph
>
> --
> The Astra Group of Companies
> 5-3-11 Sekido, Tama City
> Tokyo 206-0011, Japan
> http://www.astra.co.jp
>
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Klaus Schulz wrote:
> Hello Carlo.
>
> The ranters! comment:
>
> I can understand your way of looking at things.
> But you'd better be a bit more careful with statements like these below,
> if you don't really know what's going on.
>
> Just FYI: All possible traces - Ingo asked for - are on Ingos desk!
Then that's very good :) I was just wondering on what possibly happened to
the problem since the person who forwarded your concern from the ck list to
the lkml (I don't subscribe to the ck list) didn't have a follow-up after a
few days.
And as far as the public list archives are concerned, there were no stats
posted as Ingo had asked for. It seems though that you had done privately,
then that's very good.
Since your problem had already been posted online, I thought that any
person who might've had a similar problem like yours would benefit from
knowing what steps got undertaken to address the problem. I particularly
was interested in your problem since I myself do a lot of music in Linux.
I'm very sure that if your problem got discussed on-line, many linux-user
musicians/programmers would benefit from it, like myself.
Sorry if I have offended you and please accept my apologies.
Thank you very much.
Best Regards,
Carlo
--
Carlo Florendo
Softare Engineer/Network Co-Administrator
Astra Philippines Inc.
UP-Ayala Technopark, UP Campus Diliman
1101 Quezon City, Philippines
http://www.astra.ph
--
The Astra Group of Companies
5-3-11 Sekido, Tama City
Tokyo 206-0011, Japan
http://www.astra.co.jp