Capabilities allows a normal user to preempt processes, otherwise only root can do that. Are you using the ccrma? I don't. I'm sure someone that's using it can help you to enable capabilities for a normal user. I think your lowlatency is OK. The xruns can result from many factors; tuning ide HDs with hdparm, irg ordering and latency with lspci, etc. There's a few people that can point you to documentation and mailing list archives where tuning a system has been discussed. ron --- felipe <filippo@xxxxxxxx> wrote: > Hi, > > I was stupidly sure I was running a lowlatency > kernel just because my > /proc/sys/kernel/lowlatency was set to 1. > > I used to start jack with something like > $: jackd -R -d alsa -d opl3sa2 -r 44100 > > and I was surprised by the great number of xruns. > Now I tried "jackstart" as > root and... what? This kernel does not have > capabilities enabled?! > > I read some posts by people who got lowlatency in > their laptops only after > enabling ACPI... Could this be true for some PC's > too? Has anyone faced this > inconvenience? I've completely disabled the Power > Management support. > > My box: > Pentium III katmai > 192 MB Ram > Sound Card Yamaha opl3sa2 > hdparm -t /dev/hda -> 64MB in 4.21 secs = 15.21 > MB/sec > Debian woody + gcc3.2 + DeMuDi > ALSA 0.9rc6 > Kernel 2.4.20-ck2 (almost: it's a 2.4.20 vanilla > with Con Koliva's lowlatency, > preemtpible and arcangeli's VM patches) > > Can't think of anything relevant, any idea? Thank > you > > felipe > > > -- > Prendi GRATIS l'email universale che... risparmia: > http://www.email.it/f > > Sponsor: > Vuoi dare nuova vita ai colori della tua casa? > L'imbianchino adatto a > te è su QxService! Ridai vita alla tua casa > cliccando qui!! > Clicca qui: http://adv2.email.it/cgi-bin/foclick.cgi?mid=841&d=3-2 __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com
