Thank you very much. These are the very first times I try to use Linux for audio recording, and the standard gentoo kernel still works fine for me; I'll surely try to follow your advices when I have a little bit more experience with it. Thanks again. Lorenzo Alle 21:40, venerd? 23 settembre 2005, Dubphil ha scritto: > Ok few month ago here is what I did : > > I have downloaded on kernel.org website : > > - the vanilla kernel 2.6.11 (sorry no gentoo kernel) > - the 2.6.12-rc3 patch > - the realtime-preempt-2.6.12-rc3-V0.7.46-02 patch (ingo molnar patch) > > I have applied the patches in the same order I have downloaded them > then I have setup the symlink linux -> kernel-2.6.11 > and I ran : > > # genkernel --menuconfig all > > then I configure my kernel like that : > > CONFIG_PREEMPT_DESKTOP=y > CONFIG_PREEMPT=y > CONFIG_PREEMPT_SOFTIRQS=y > CONFIG_PREEMPT_HARDIRQS=y > CONFIG_PREEMPT_RCU=y > CONFIG_PREEMPT_BKL=y > CONFIG_DEBUG_PREEMPT=y > CONFIG_PREEMPT_TRACE=y > CONFIG_SECURITY=y > CONFIG_SECURITY_CAPABILITIES=m > > *advice wellcome if wrong or silly parameters are set* > > Then I have downloaded the Realtime lsm module on the jack website > and follow the INSTALL documentation (really clear) > > You can tweek your softirqs and hardirqs parameters, put the realtime > module to be loaded at the startup and you should go at low low latencies > (tell us the result!) > > Hope it will helps. For Gentoo issues please ask me out of the LAU list. > Now you should adapt this methodology to the more current kernel sources > (i.e. 2.6.13) > > Regards > > Philippe
