I also have a ricoh chipset, and I'm considering to by a FA-101 to use with Linux (I use MOTU with win). Currently I'm still using 9.10 on the audio-laptop by have 10.10 on my netbook, and I'm studying if I should move to 10.10 on the audio-laptop. Your email is a help towards that, cause 8ms is low for my standards :)
If you can test with full load, I'd appreciate any comments on that.
best regards, Pedro Lopes
On Sun, Nov 14, 2010 at 3:56 PM, Ricardo Lameiro ricardolameiro@gmail.comwrote:
I tried it only with 2 ins 2 outs, but jack had the 8 channels open, just wasnt used. I had some people telling me that they made it to 4ms latency with a RT kernel, proper IRQ settings and a Texas Instruments Firewire chipset
2010/11/14 Pedro Lopes pedro.lopes@ist.utl.pt
Impressive low latency Ricardo, congrats. All channels working? Or a stereo
duplex(in+out) only?
Best regards, Pedro Lopes
On Sun, Nov 14, 2010 at 3:37 PM, Ricardo Lameiro < ricardolameiro@gmail.com> wrote:
As Far as I tested it, yes. I tried 10.10 with a FA-101 and without RT kenel and already with the new FireWire stack/FFADO i could achieve 8 ms latency with a ricoh chipset. so for now it seems it is going very nice. altough much improvement is needed. Ubuntu studio team is working on workflows and and in some modifications for the next release (natty /11.04). If you want to tes the Alesio's RT kernels you can join the mailing list. For now, RT kernels will be provided via PPA repositories, so debugging and testing is very needed, more when people push hard the system, like with PD :D Ubuntu Studio team is commited to bring together most people connected to multimedia and working upstream, and mainly with debian multimedia. Also I should remeber that Ubuntu studio is a community version, with some help from canonical, (servers, QA, and some more stuff).
2010/11/14 Pierre Massat pimassat@gmail.com
So Ubuntu 10 should be more efficient than 8.04 on the same machine?
2010/11/14 Ricardo Lameiro ricardolameiro@gmail.com
For now, FireWire devices are the ones that really gain with a RT
kernel. The generic Kernels are becoming more and more timing eficient, they absorbed a lot of the RT patches made by Ingo Molnar et al. I dont know why didnt Ubuntu worked on your computer. If fedora worked, ubuntu should also work.
2010/11/14 Jose Luis Santorcuato santorcuato76@gmail.com
Hi List!, I use Linux Ubuntu 9.04, test 9.10 and 10.04... i prefer
ubuntu for ease and support, is confortable for replicate experiences in the educational field. You can compile the low latency Kernel, and the aplications are good.
Best regards
José
2010/11/14 cyrille henry ch@chnry.net
> hello, > > you say that you need a RT kernel : did you benchmarck the difference > between a RT kernel and a standard kernel? > > anyway, i'm using ubuntu 10.04 with no optimisation. > compiling pd/Gem is very fast and easy, so i don't wait the official > package... > > cyrille > > Le 14/11/2010 13:48, Pierre Massat a écrit : > >> Hi all! >> >> I have realized lately that Fedora/PlanetCCRMA may not be the best >> linux >> rt distro out there in terms of updates for Pd. So I wanted to >> conduct a >> survey among pd-list members to know who is using what. It seems >> like >> Ubuntu Studio is the distro that's most frequently updated. Too bed >> because the last time i tried to install it on my laptop it didn't >> work... >> Any advice would be appreciated. >> I need a rt kernel, of course... >> >> Pierre >> >> >> >> _______________________________________________ >> Pd-list@iem.at mailing list >> UNSUBSCRIBE and account-management -> >> http://lists.puredata.info/listinfo/pd-list >> > > _______________________________________________ > Pd-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list >
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-- Pedro Lopes (ongoing MSc) contact: pedro.lopes@ist.utl.pt website: http://web.ist.utl.pt/Pedro.Lopes
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