Hello Daniel and Luis - Yes i'm using the rtirq script; - I'm using the latest version of linuxsampler 1.0.0 (in Gentoo : from pro-audio overlay; in Ubuntu : not in the repositories so I compile it myself, after taking it on the linuxsampler website); same for libgig (dependency of linuxsampler); - I'll have a look at hwlat_detector; it seems not to be in the repositories in Ubuntu; i'll be searching; - regarding the logs of the USB, how can I do it please? I'm using an external USB sound card (a M-Audio Fast Track Pro); the keybord is connected to the card via midi. Thank you all Victor > Date: Mon, 31 Jan 2011 09:23:46 -0200 > From: lclaudio@xxxxxxxx > To: linux-rt-users@xxxxxxxxxxxxxxx; nadaeck@xxxxxxxxxxx > Subject: Re: disk thread problem when using RT-kernel > > On Sat, Jan 29, 2011 at 10:41:47PM +0100, Victor henri wrote: > ... > | 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; > > Have you tried running hwlat_detector? You (hopefully) can find it in your > kernel sources and notes on how to use it at Documentation/hwlat_detector.txt. > In short, you could be seeing long latencies spikes created by SMIs. That kernel > module, hwlat_detector, may help you identifying them. > > The hint about setting the priority of the IRQ threads is also a good one. > You should also look at the logs of the USB/firewire/whatever you are using > to commounicate with your keyboard... you may be suffering buffer underruns > due to file size or something similar to it. > > Luis > -- > [ Luis Claudio R. Goncalves Bass - Gospel - RT ] > [ Fingerprint: 4FDD B8C4 3C59 34BD 8BE9 2696 7203 D980 A448 C8F8 ] > > -- > To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
