RE: Low-latency and 64-bit
Hello yes you can! I do it since a long time victor > Date: Wed, 15 Jun 2011 13:48:48 -0500 > Subject: Low-latency and 64-bit > From: beej...@gmail.com > To: ubuntu-studio-users@lists.ubuntu.com > > I upgraded my computer after many, many years and am now using 64-bit > Ubuntu. I've never used 64-bit before, so I have a very basic > question. Can I use Alessio's low-latency kernels with a 64-bit > system? > > -- > -Brian David > > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: Spectrum3d : software that displays the harmonics of the soundin 3D
Hello Bernard > > Victor, > > Great piece of software, but I like to install things in ~/bin if they are > not actual Ubuntu packages. I did this by editing the > configure script, but it would be nice if there were a "prefix=" option. > > Bernard > Understood. I will Actually for the next version, I'm working on 'configure' and makefile' generated with the autoconf and automakes tools; so they'll meet more the GNU standards. Thank you for your input. Victor -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: Spectrum3d : software that displays the harmonics of the soundin 3D
Hello Bob > Victor, > Yes it works, though a little slow on this test > machine p4 1.6ghz, 756 MBRam, but I by know means > have it optimized for this. There is a 5 sec delay > between speaking into sound card mic and seeing the > display. 5 seconds delay is *huge* indeed; does the delay increases while playing? or is it stable around 5 sec? If the delay increases, you should try a 'lighter configuration' : a main window's width at 700 pixels, and a longer time interval (you can find this it at Menu -> Edit -> Preferences); If the delay is stable and your CPU is not overloaded, you could try to re-configure with the '--enable-realtime' option, to allow spectrum3d to have a higher priority (RR p=50 to be precise); note that you'll have to edit (or create) the '/etc/limits.d/security/audio.conf' file and add yourself as a member of the 'audio' group if you do that (it is explained in the doc if you want); otherwise, you'll have to run spectrum3d as root Wich kernel are you using? A preempt would probably have better results, but this is probably tweaking a bit more your system... I have ten test machines with different > os's, up to a quad core 2.8ghz and 8gb ram, so I can > try many different ways. Indeed, on this machine, it should rock :-) There is a realtime audio analysis and display in 3d this is CPU and GPU consuming... > I already had libgtk2.0-dev, but still got errors > during make (not during ./configure) about missing > libgtk+-2... > So I compiled it from source, after meeting several > of it's dependencies. This concerns me; it should work out of the box with just libgtk2.0-dev installed. Wich Debian and libgtk+2.0 version are you using? > > I have notes on all this on the test machine if you > are interested. Yes please; i'm interested! Thank you for this Victor -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: Spectrum3d : software that displays the harmonics of the sound in 3D
Hello Brian and thank you for your interest > > Just installed your software today, Victor, and it is wonderful! In > fact, so wonderful that I already have a feature request. Would it be > possible to add an option to eliminate the Z-axis entirely, and just > have a 2-dimensional front view? If I'm using software such as this > to, say, test frequency response while mastering, I find I really > don't have a lot of need for the Z-axis. This is already implemented actually : just set the 'Depth' scale (at the lower right of the command interface) to 0, and you'll get a 2d view. If you click on the 'Front view' you should have the good perspective for what you're looking for. However, note that there are already other software that show a front view only, such as JAAA or JAPA. > > On a final note, your INSTALL document is fantastically written. If > only all programmers took the time to write instructions this > detailed. I did my best. I'm happy that it is usefull :-) Victor -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Spectrum3d : software that displays the harmonics of the sound in 3D
Hello Bob > Victor, > I'm very interested in checking this out, but I'm not > finding ppa's for > > libgtk+... You are probably looking for libgtk2.0-dev package, which is in the official packages of Debian ( http://packages.debian.org/squeeze/libgtk2.0-dev ); if you install this, you should have all it's dependencies installed with it. You do not need anyaditional PPA for Spectrum3d : everything should be in the repositories (with an exception for Geis : it is in the repo for Natty; for Debian, I think it is not available yet unless you build it yourself from sources in the *testing* version only) Please let me know if you have any trouble and thank you for your interrest Victor -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: Spectrum3d : software that displays the harmonics of the sound in 3D
Hello Aradnix > O_O wow Congratulations: Thank you > I think the develpoment for Ubuntu Studio is very hard, because I see there > is really few people working on it, and because is very difficult to follow > each release that Cannonical launches. Perhaps it's only my imagination. I'm not involved in ubuntu Studio develepment, though I'm willing to help; but i can imagine that's a hard work indeed I> n the last FLISOL's edition a friend mine who is musician presented a custom distro he did for musicians and talking about Ubuntu studio he thinks the rt kernel is not so pulished and debugged as should and he talk about the audio and the control did it whit the same tool that Ubuntu, something he considers not helpful for audio production and well it makes me thinks a lot of things about it. I t seems that having a rt kernel working is already very difficult; I believe there is already really hard work behind this... Furthemore, in my humble opinion, the preempt kernel becomes more and more interesting... > And all this is because I think tools like yours and others should take part > of this distro, developed for multimedia creation. I'm not sure how many > distros for this task exist, I know this one and fedora Design Suite that > it's for me not so complete as Ubuntu studio, but I feel this is a sector > where we need to work a lot yet for can compete with professional solutions > in other SOs. Thank you for your comments Victor -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: Spectrum3d : software that displays the harmonics of the sound in 3D
Hello Mike Hello I'd like to introduce Spectrum3d, a new software that displays harmonics of the sound in 3D, with openGL. Audio source can be the microphone or an audio file, and it is Jack compatible. Optionally, it can be run in real-time when not runing with Jack; also optionally, it can receive multitouch input (either from touchscreen, or from touchpad). X represents frequencies, Y represents amplitude of each frequencies and Z represents time. The perspective can be changed either by rotating or by translating the display around or along the 3 axis without limitations. Here is a quick link to a demo video : http://www.youtube.com/watch?v=CCVxDNbcqRE It can be found here : http://www.presences.org/download/spectrum3d-0.2.2.tar.bz2 And here is a link to a tutorial explaining how it works : http://www.presences.org/spectrum3d_tutorial_en.html It is free and under GPL licence. It uses the Gtk+, SDL, OpenGL, Gstreamer and uTouch-Geis free librairies. It works on Ubuntu 10.04, 10.10 and 11.04, but should work on other distributions also. It is still beta; testers are welcome. Thank you for your attention. Victor very nice victor.. is this yours? are you submitting it up to debian? Yes I did it myself; i didn't submit it anywhere but I would be very happy to. Do you think they could be interested? i thought maybe start with Ubuntu since it is the sytem I'm working on. On the other hand, I think that in Debian the Xorg implementation doesn't allow multitouch input for now ( but it can work in the testing branch AFAIK); but the 'mutitouch' is not the main feature of the software... Victor -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Spectrum3d : software that displays the harmonics of the sound in 3D
Hello I'd like to introduce Spectrum3d, a new software that displays harmonics of the sound in 3D, with openGL. Audio source can be the microphone or an audio file, and it is Jack compatible. Optionally, it can be run in real-time when not runing with Jack; also optionally, it can receive multitouch input (either from touchscreen, or from touchpad). X represents frequencies, Y represents amplitude of each frequencies and Z represents time. The perspective can be changed either by rotating or by translating the display around or along the 3 axis without limitations. Here is a quick link to a demo video : http://www.youtube.com/watch?v=CCVxDNbcqRE It can be found here : http://www.presences.org/download/spectrum3d-0.2.2.tar.bz2 And here is a link to a tutorial explaining how it works : http://www.presences.org/spectrum3d_tutorial_en.html It is free and under GPL licence. It uses the Gtk+, SDL, OpenGL, Gstreamer and uTouch-Geis free librairies. It works on Ubuntu 10.04, 10.10 and 11.04, but should work on other distributions also. It is still beta; testers are welcome. Thank you for your attention. Victor -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: Natty and the Real Time Kernel
Hello > > Hi all, > > I'm starting testing natty i386 on a netbook celeron 900 2Go Asus eeepc 900 > which is running with lucid i386 RT kernel fine (RT kernel is Alessio's one). > > For natty, which kernel should I test ? Alessio's one, or FaltX' one ? Hello both (rt from Falk's and low latency from Alessio's) are probably fine My personal experience is, since 2.6.33, many improvements have been done in the low latency kernel; I, as several other people, have reported excellent performances of the 2.6.37 and 2.6.38 low latency kernel, that seemed to get much closer closer to the rt performance then before. That allows me, most of the time to not use anymore the RT kernel and all its related problems... Victor > > My wish is to test if natty low latency or RT kernel is stable and as > performant > as lucid one before talking about it at Ubuntu Party in Paris the 28-29 may > 2011... > > Thanks for answers. > > > Bellegarde Laurent > free video : lprod.org > -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: Holiday response message
Hello > > Good afternoon, > > I remember a while ago that there was a very annoying case when someone > left the e-mail address that they used to subscribe to this list on an > auto-respond message. > > I'm about to do the same, as I'll be away from "civilisation" for > nearly three weeks from mid-April. How can I avoid spamming the list > with my auto-respond messages? > Maybe you should disable you mail delivery in your ubuntu mailing list preferences; then turn it on again when you are back Victor -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: rt kernel
> Victor, > > 2011/4/4 Victor henri : > [...] > > - for the cgroups disabled: is it the "General Setup -> Control Group > > Support" set to 'no'? > > No need to disable cgroup anymore. > > > - for the "no tics" options disabled, is is the "Processor Type and > > Features -> High Resolution Timer Support" set to 'no'? If not, what is the > > option to be disabled? > > # CONFIG_NO_HZ is not set > > Ciao, > Alessio Thank you so much Alessio Victor -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: rt kernel
Hello I compile myself the preempt kernel usually. > 2011/4/3 Gerhard Lang : > [...] > > buffersize/xrun ratio. For tedious audio work on standard hardware I see no > > more need for -rt kernels. > > I would be very happy if we could live without -rt kernel. > > > I guess there might be a little profit for audio > > performance by compiling actual kernel cgroups disabled, no tics disabled, > > preemptible kernel enabled and timer frequency set to 1000hz. > For the preemptible kernel, I was aware of the "preemptible kernel" and "timer frequency = 1000Hz" options; Could please tell for the @ other otptions: - for the cgroups disabled: is it the "General Setup -> Control Group Support" set to 'no'? - for the "no tics" options disabled, is is the "Processor Type and Features -> High Resolution Timer Support" set to 'no'? If not, what is the option to be disabled? > This is exactly the -lowlatency kernel. > > > optional manipulating devices' IRQ assignment and priorities like this was > > done by rtirq should be a feature for standard kernels. > > I hope to provide soon a new -lowlatency kernel which provide that > feature (which is available in 2.6.39). > > Ciao, > Alessio > Thank you Victor -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: rt kernel
Hello > > On 04/03/2011 08:44 AM, Victor henri wrote: > > It seems that the -generic kernel in Ubuntu 10.10 (and 11.04) is not very > > appropriate for that, since the RT_GROUP_SCHED option in the kernel is > > enabled; it means that it overrides everything that may have been > > configured in the limits.conf. See jackd FAQ : > > http://jackaudio.org/linux_group_sched > > This seems specific to Ubuntu (according to Jackd FAQ); so it's probably > > worth to have a try, but you shouldn't be surprised if you have a lot of > > Xruns. Then you should considerr other options (see below) > > > > The cgroups thing is no longer an issue. The information on Jacks page > is no longer up to date. We should ask them to remove that part from > their FAQ. > > 10.10 was never affected. But when I 'sudo make menuconfig' in the /usr/src/linux-headers-2.6.35-22-generic directory (or the -28-generic) the RT_GROUP_SCHED option is enabled... On 11.04 kernel version 2.6.37 was not usable > without having to recompile it, but the kernel in Natty is now 2.6.38, > which includes a patch that removes this problem. Is a patch needed for that? Is it not enough to disable the RT_GROUP_SCHED option then compile or recompile? > > The performance on 2.6.38 has been going up and down during the > development of Natty. At the moment, it is not bad, though not perfectly > reliable. > Alessio Boganis PPA includes a -lowlatency kernel for Natty, which > performs virtually as well as a -realtime kernel would, for *most* people. Yes indeed, I've noticed that; It was such a big and nice surprise to see that a 2.6.37 or 2.6.38 preempt could do almost the same job as a realtime kernel (at least for what I do) > > -- > ailo > Victor -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: rt kernel
Hello > Hi Scott, > I did the same. Bad news: rt isn't for Ubuntu 10.10. > Bye. > > > 2011/4/2 Scott Bohon > > I am a newbie to Ubuntu and Linux. I upgraded from Ubuntu 10.10 to > Studio, but I got a message during the upgrade that essentially said > linux-rt could not be found. Is linux-rt loaded with the audio package? > Do I need -rt? How do I check if -rt is loaded? If I still need it, how > do I get it? > > Thank you for your help! > > Scott Bohon > cellist and new techno-musician! > > > you can use a kernel from abogani's PPA... check out > http://jackschnippes.freeunix.net/index.php/2010/11/04/lowlatency-kernel-and-realtime-kernel-for-ubuntu-10-10-maverick > ...ALSO, the -generic kernel is quite a bit more appropriate for > realtime audio these days, It seems that the -generic kernel in Ubuntu 10.10 (and 11.04) is not very appropriate for that, since the RT_GROUP_SCHED option in the kernel is enabled; it means that it overrides everything that may have been configured in the limits.conf. See jackd FAQ : http://jackaudio.org/linux_group_sched This seems specific to Ubuntu (according to Jackd FAQ); so it's probably worth to have a try, but you shouldn't be surprised if you have a lot of Xruns. Then you should considerr other options (see below) so just try it, and IF you need lower > latency for softsynths, or realtime effects proecessing, or if you are > getting a bunch of xruns, move on to an -rt kernel... also, you can go > ahead and install 11.04 if you'd like... OR use 10.04 like i am... > enjoy... Indeed, there is no RT kernel for Maverick in Alessio Abogani's ppa; however, i've used succesfully the RT kernel for Lucid on my Maverick; it worked fine and it is probably the simplest; another option is to compile to RT kernel yourself (wich takes some time but it not so difficult); i have this doc : http://www.linuxmao.org/tikiwiki/tiki-index.php?page=compiler+un+noyau+2.6RT Sorry this is in French, but it is quite understandable, I think; the interesting part is at the very bottom under the title : Exemple : installation d'un noyau temps réel 2.6.33.7-rt29 sur Ubuntu 10.10 If you want to do it and if you have troubles, I'll be glad to help. Another option is to wait for Natty Narwal release : in Abogani's ppa, there is a preemt kernel (which should probably be enough) for Natty available... > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users > > > > > -- > MH > Victor -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: Kubuntu 10.10 and real-time kernel
> From: albitou...@yahoo.gr > To: ralf.mard...@alice-dsl.net > Subject: Re: Kubuntu 10.10 and real-time kernel > Date: Mon, 28 Feb 2011 22:56:10 +0200 > CC: ubuntu-studio-users@lists.ubuntu.com > > Στις Δευ 28 Φεβ 2011 11:42:19 Ralf Mardorf γράψατε: > > On Sun, 2011-02-27 at 23:24 +0200, Alexandros Bitoulas wrote: > > > Hello Ralf! Firstly thank you for all your information and suggestions > > > for all your mails! > > > > > > >Στις Κυρ 27 Φεβ 2011 14:54:03 Ralf γράψατε: > > > > On my machine (ASUS M2A-VM HDMI, AMD Athlon X2 Dual-Core Processor > > > > > > > > BE-2350, 2GB RAM, 2 PCI Terratec EWX 24/96 Envy24 cards and a NVIDIA > > > > > > > > GeForce 7200 GS graphics) Edubuntu 10.10 x86 plus Ubuntu Studio from > > > > > > the > > > > > > > repositories seems to be stable since I > > > > > > > > > > > > > > > > - build a kernel-rt by the attached script rt4us_[snip] > > > > > > > > (Note: for running the kernel-rt the package rtirq-init needs to be > > > > > > > > installed and the user has to be member of the group > > > > > > > > 'audio', /etc/security/limits.d is set up > > > > > > > > automatically by the packages) > > > > > > > > If you're booted to the current kernel 2.6.35-25-generic, you only > > > > > > > > need to push enter all the times. > > > > > > Does this script build the same kernel with the one if I just run sudo > > > apt-get install linux-rt linux-headers-rt ? > > > > > > I mean, is this script essential for my real-time performance? Is this > > > a better kernel for audio production? > > > > > > Thanks once again! > > > > > > Alex > > > > It's the latest kernel-rt, a kernel-rt from the repositories should be > > (nearly) the same. > > Dear friends, > > To Ralf: I had some problems with the script and didn't manage to build the > kernel (missing packages like make-kpkg and others which I couldn't even sudo > apt-get install them). Furthermore, If I got the right picture, this script > has a default configure scheme set up which probably is not suitable for my > hardware (am I right?) and due to my lack of knowledge and experience I > abandoned the efforts in order to not mis-configure something. For the > record, > in 10.10 real-time and low-latency kernels are not included at the official > repositories. > > After researching on the net I decided to install the low-latency or the real- > time kernel, after adding Alessio Igor Bogani's ppa to my system (Kubuntu > 10.10, x64) with sudo add-apt-repository ppa:abogani/ppa. > > However when I sudo apt-get install linux-lowlatency or linux-realtime no > package can be found! I realized that this does not work for the 10.10 distro > as it is mentioned that it works only for Lucid or Natty! > > What can I do to install the latest low-latency or real-time of Alesio Bogani? > > I found also this: > http://ubuntuforums.org/showpost.php?p=10072326&postcount=10 > but it seems to download an older version of the low-latency and real-time > kernels? I installed the repository for Lucid in my Maverick; i could install the Real-time kernel without problem :-) Victor > > Please, I need your advice! > > Thanks, > > Alex > > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: wanted Ubuntu Studio hardware advice
> Subject: Re: wanted Ubuntu Studio hardware advice > From: ralf.mard...@alice-dsl.net > To: ubuntu-studio-users@lists.ubuntu.com > Date: Sun, 27 Feb 2011 15:30:22 +0100 > > Ancillary to Mike Holstein, IMO for audio it's important that the > graphics is passiv, no fan, no noise. Even for 3D animation any slow 3D > support is fast enough. > > The power supply should have a large and slow fan. > Take care to buy silent HHDs. > > I've got a question too. I'm searching for an audio device. > > I've got two Terratec EWX 24/96 PCI cards and I don't like the muddy > sound. For sure, it might not only be the cards that produce this sound, > I guess it also has to do with issues for Linux audio, but OTOH those > issues might have to do with a less good driver, jackd or something else > for Envy24 cards, I dunno. > > Perhaps the audio device should cost less than 1000,- EUR or better > less, than 500,- EUR. I would prefer 4 or more IOs, but just 2 IOs would > be ok too. The most important things to me are > > - no issues with Linux > - a good sound quality, at least as good as good consumer hifi equipment > - very, very, low latency to fight jitter for MIDI recordings > - if possible 4 IOs or more, but 2 IOs are ok, if the sound and handling > is ok I'm using a Fast Track Audio Pro from M-Audio and i'm happy with it. I have less than 5 msec latency Victor > > > > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: Kubuntu 10.10 and real-time kernel
> Date: Sun, 27 Feb 2011 11:47:24 +0100 > Subject: Re: Kubuntu 10.10 and real-time kernel > From: abog...@ubuntu.com > To: ubuntu-studio-users@lists.ubuntu.com > > Hi, > > 2011/2/26 Hartmut Noack : > [...] > > Kernel and System-Setup are really important. If a capable basic-system is > > set up carefully, the desktop-system does not matter much. > [...] > > I agree, definitely. > > Please note that Ubuntu Studio don't offer that level of setup at the moment. Hello, Could you please be more specific on what is missing in Ubuntu Studio to get that level of setup? This what I know already : - Ubuntu Studio already automatically configure the /etc/security/limits.d/audio.conf by adding the lines : @audio - rtprio 95 @audio - memlockunlimited You just have to add yourself in the 'audio' group manually. - However, there seem to be a problem if you use a generic kernel in Ubuntu 10.10, because in Ubuntu 10.10 the "RT_GROUP-SCHED" option in the kernel is activated. As far as I understand, this means that doing the previous manipulation (ie configuring the /etc/security/limits.d/audio.conf and adding yourself in the audio group) won't allow real-time erformance for JAck... "The RT_GROUP_SCHED option overrides everything that may have been configured in limits.conf and makes it very complex for regular users to get access to the realtime scheduling that JACK works best with. " This comes from Jack-audio-connection-kit FAQ http://jackaudio.org/linux_group_sched Ok so the only option is to use a precompiled real-time kernel, or a preemnt kernel having that RT_GROUP_SCHED option disabled (for example in Alessio Bogani's ppa), (or a "home-compiled" kernel, which is what i'm doing), or use other solutions like it is said in the jack FAQ page I mentioned . - The rtirq-init script has to be used; Is there something else in Ubuntu Studio that has to be set up? Thank you very much. Victor > > Ciao, > Alessio > > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: problem of disk threads whith every rt kernel, except with kernel-2.6.31.11! - Was: Re: Kernel configuration - Was: Re: (No subject)
> Subject: RE: problem of disk threads whith every rt kernel, except with > kernel-2.6.31.11! - Was: Re: Kernel configuration - Was: Re: (No > subject) > From: ralf.mard...@alice-dsl.net > To: ubuntu-studio-users@lists.ubuntu.com > Date: Sun, 13 Feb 2011 09:28:49 +0100 > > On Sun, 2011-02-13 at 09:24 +0100, Ralf Mardorf wrote: > > On Sat, 2011-01-29 at 22:02 +0100, Victor henri wrote: > > > Hello: > > > > > > I have a problem since almost one year now. I'm using linuxsampler, > > > that allows that load very big sample files (one of my .gig file is > > > 1.6 G for only one piano sound); this use disk streaming. > > > > > > I always have such problem only when i use the RT kernel : > > > > > > 0x7f6eef1ee860 Disk stream not available in time! > > > > > > After several message slike that, i get : > > > > > > DiskThread: there was no free slot > > > Disk stream order failed! > > > > > > Then the sounds clicks, then stops for 10 to 20 seconds, then i can > > > play again, then it'll come again... > > > > > > This arrives on both Gentoo and Ubuntu 10.10 64 bits; BUT there is one > > > thing however : there is ONE kernel with wich it doesn't arrive : the > > > 2.6.31.11-rt from Ubuntu lucid (RT kernel was in the repositories in > > > Ubuntu untill 10.04 Lucid, then now i have to either take it from > > > Abogani's ppa (for lucid or natty) or compile it myself with the > > > rt-patch from kernel.org; i've tried all of that, and nothings works, > > > except for the 2.6.31.11-rt from in the repositories of Ubuntu > > > Lucid-updates) > > > > > > Here are some technical details: > > > - I have laptop Asus Core i7 for gamers (supposed to be very > > > fast);to be noted : it also happens on another Asus Core I7, but NOT > > > on an another Asus Core i3; 4Go RAM; > > > - when i compile myself i choose : real-time preemption (of > > > course) and Timer frequency 1000 Hz, either on Gentoo or on Ubuntu > > > with kernel from kernel.org; nothing else is changed in Ubuntu. > > > - i've tried with the no-op cfq scheduler also; i use ext3 on > > > Gentoo and ext4 on Ubuntu; > > > - have a nvidia graphic card, but no proprietary driver > > > installed > > > > > > i have posted that at the linuxsampler mailing list without succes > > > > > > Could please someone help me? i LOVE RT-kernel and its > > > capabilities What is it in the linux-rt package that is not > > > somewhere else and that allows things to work for me? > > > > > > Thank you > > > > > > Victor > > > > Did you test what will happen, if you copy the configuration of the > > 2.6.31.11-rt from Ubuntu Lucid to the source directory, instead of > > making your own configuration? Rename it from 'config-2.6.31.11-rt' to > > '.config' in the source directory, before you build the kernel. If you > > run make oldconfig nothing should be asked. > > > > Hth, > > > > Ralf Hello Ralph Yes i did, without succes; i'll retry in case i did something wrong... but i did... On the other hand, i've asked the question ate the RT kernel mailing list; one of the devolopers of the rt kernel himself tried to help me; but since i was not able to give enough debug info (i need a serial port to get the debug info and i don't have it), nothing came out of it... I'm curious to see if the new rt-kernel will fix this or not... Victor > > > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: problem of disk threads whith every rt kernel, except with kernel-2.6.31.11!
Yes i forgot to mention that is the RT kernel that makes the difference; for now, it works ok with the generic kernel with optimized parameters, such as - preemptible kernel (low latency desktop); - timer frequency 1000 Hz but it works quite ok with Linuxsampler alone; but when i want to add some applications, for example rosegarden to record, Xruns arrive, even with a bigger latency in jack > Date: Sat, 29 Jan 2011 22:02:34 + > Subject: Re: problem of disk threads whith every rt kernel, except with > kernel-2.6.31.11! > From: ricardolame...@gmail.com > To: ubuntu-studio-users@lists.ubuntu.com > > Have you tried it without RT kernel? > > > 2011/1/29 Victor henri > > (I've posted this already without subject; i allow myself to repost to > make it; please ignore the other one; i apologize for the mistake i > made) > > Hello: > > I have a problem since almost one year now. I'm using linuxsampler, > that allows that load very big sample files (one of my .gig file is 1.6 > G for only one piano sound); this use disk streaming. > > I always have such problem only when i use the RT kernel : > > 0x7f6eef1ee860 Disk stream not available in time! > > After several message slike that, i get : > > DiskThread: there was no free slot > Disk stream order failed! > > Then the sounds clicks, then stops for 10 to 20 seconds, then i can > play again, then it'll come again... > > This arrives on both Gentoo and Ubuntu 10.10 64 bits; BUT there is one > thing however : there is ONE kernel with wich it doesn't arrive : the > 2.6.31.11-rt from Ubuntu lucid (RT kernel was in the repositories in > Ubuntu untill 10.04 Lucid, then now i have to either take it from > Abogani's ppa (for lucid or natty) or compile it myself with the > rt-patch from kernel.org; i've tried all of that, > and nothings works, except for the 2.6.31.11-rt from in the > repositories of Ubuntu Lucid-updates) > > Here are some technical details: > - I have laptop Asus Core i7 for gamers (supposed to be very > fast);to be noted : it also happens on another Asus Core I7, but NOT on > an another Asus Core i3; 4Go RAM; > - when i compile myself i choose : real-time preemption (of course) > and Timer frequency 1000 Hz, either on Gentoo or on Ubuntu with kernel > from kernel.org; nothing else is changed in Ubuntu. > - i've tried with the no-op cfq scheduler also; i use ext3 on > Gentoo and ext4 on Ubuntu; > - have a nvidia graphic card, but no proprietary driver installed > > i have posted that at the linuxsampler mailing list without succes > > Could please someone help me? i LOVE RT-kernel and its capabilities > What is it in the linux-rt package that is not somewhere else and that > allows things to work for me? > > Thank you > > Victor > > > > > > > -- Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users > > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users > > > > > -- > Fagote / Contrafagote > Bassoon / Contra-bassoon > http://myspace.com/ricardolameiro > > -- Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
problem of disk threads whith every rt kernel, except with kernel-2.6.31.11!
(I've posted this already without subject; i allow myself to repost to make it; please ignore the other one; i apologize for the mistake i made) Hello: I have a problem since almost one year now. I'm using linuxsampler, that allows that load very big sample files (one of my .gig file is 1.6 G for only one piano sound); this use disk streaming. I always have such problem only when i use the RT kernel : 0x7f6eef1ee860 Disk stream not available in time! After several message slike that, i get : DiskThread: there was no free slot Disk stream order failed! Then the sounds clicks, then stops for 10 to 20 seconds, then i can play again, then it'll come again... This arrives on both Gentoo and Ubuntu 10.10 64 bits; BUT there is one thing however : there is ONE kernel with wich it doesn't arrive : the 2.6.31.11-rt from Ubuntu lucid (RT kernel was in the repositories in Ubuntu untill 10.04 Lucid, then now i have to either take it from Abogani's ppa (for lucid or natty) or compile it myself with the rt-patch from kernel.org; i've tried all of that, and nothings works, except for the 2.6.31.11-rt from in the repositories of Ubuntu Lucid-updates) Here are some technical details: - I have laptop Asus Core i7 for gamers (supposed to be very fast);to be noted : it also happens on another Asus Core I7, but NOT on an another Asus Core i3; 4Go RAM; - when i compile myself i choose : real-time preemption (of course) and Timer frequency 1000 Hz, either on Gentoo or on Ubuntu with kernel from kernel.org; nothing else is changed in Ubuntu. - i've tried with the no-op cfq scheduler also; i use ext3 on Gentoo and ext4 on Ubuntu; - have a nvidia graphic card, but no proprietary driver installed i have posted that at the linuxsampler mailing list without succes Could please someone help me? i LOVE RT-kernel and its capabilities What is it in the linux-rt package that is not somewhere else and that allows things to work for me? Thank you Victor -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
[no subject]
Hello: I have a problem since almost one year now. I'm using linuxsampler, that allows that load very big sample files (one of my .gig file is 1.6 G for only one piano sound); this use disk streaming. I always have such problem only when i use the RT kernel : 0x7f6eef1ee860 Disk stream not available in time! After several message slike that, i get : DiskThread: there was no free slot Disk stream order failed! Then the sounds clicks, then stops for 10 to 20 seconds, then i can play again, then it'll come again... This arrives on both Gentoo and Ubuntu 10.10 64 bits; BUT there is one thing however : there is ONE kernel with wich it doesn't arrive : the 2.6.31.11-rt from Ubuntu lucid (RT kernel was in the repositories in Ubuntu untill 10.04 Lucid, then now i have to either take it from Abogani's ppa (for lucid or natty) or compile it myself with the rt-patch from kernel.org; i've tried all of that, and nothings works, except for the 2.6.31.11-rt from in the repositories of Ubuntu Lucid-updates) Here are some technical details: - I have laptop Asus Core i7 for gamers (supposed to be very fast);to be noted : it also happens on another Asus Core I7, but NOT on an another Asus Core i3; 4Go RAM; - when i compile myself i choose : real-time preemption (of course) and Timer frequency 1000 Hz, either on Gentoo or on Ubuntu with kernel from kernel.org; nothing else is changed in Ubuntu. - i've tried with the no-op cfq scheduler also; i use ext3 on Gentoo and ext4 on Ubuntu; - have a nvidia graphic card, but no proprietary driver installed i have posted that at the linuxsampler mailing list without succes Could please someone help me? i LOVE RT-kernel and its capabilities What is it in the linux-rt package that is not somewhere else and that allows things to work for me? Thank you Victor -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
