Re: [jazzplusplus-devel] Starting jackd on Mandriva

[Pete S. <pst...@gm...>]

PS = Pete Stieber
DM = D.B. Moore
DM> //my comments
DM>
DM> CONFIG_HZ_1000=y
DM> CONFIG_HZ=1000
DM>
DM> //you DO have the right HZ
DM>
DM> # CONFIG_PREEMPT_NONE is not set
DM> CONFIG_PREEMPT_VOLUNTARY=y
DM> # CONFIG_PREEMPT is not set
DM> # CONFIG_PREEMPT_BKL is not set
DM>
DM> // I haven't looked at qsynth code, but my
DM> // guess is the above is the show-stopper.
DM> // 'VOLUNTARY' = normal 'Desktop' preemption
DM> //'Low-latency Desktop requires
DM> // CONFIG_PREEMPT=y (as I do)
DM>
DM> CONFIG_DEFAULT_IOSCHED="cfq"
DM>
DM> // not actually how sure this one matters...
DM> // I use DEADLINE myself as I'm more
DM> // interested in linear performance
DM>
DM> CONFIG_TICK_ONESHOT=y
DM> CONFIG_NO_HZ=y
DM> CONFIG_HIGH_RES_TIMERS=y
DM>
DM> // I don't use the 'dynamic ticks' stuff
DM> // I believe one needs the HIGH_RES_TIMER
DM> // set like you have
DM>
DM> I believe this accounts for what you're
DM> seeing with qsynth.

For the record, my Fedora x86_64 install worked OTB.  Do you want the 
same information from it?

Do you have to compile the kernel to get these parameters changed?

Pete