I am trying these settings, so far I like them better than all others I have tried. based on SBT base 45/50 with watchdog at 0 = more detail, air. irq45, 42, 17, 123 and 102 set to priority 41. impression is less dark than sbt base, but pretty much same bass, exquisite mid and no sibilance.
nice theory by John s, but feel it is a software issue, SBT was designed as a consumer audio product, we are trying to use it as a high end hi fi source (for which it was never designed) and have learned that audio priority threads benefit from optimised priorities. its about getting the required job done at the required time which is why sound can become muddy and confused when priorities are wrong. PIDJIVEALSA=`pidof jive_alsa` #def: 45 #PIDJIVE=`pidof jive` #def: - PIDSIRQTASKLET0=`pidof sirq-tasklet/0` #def: 89 interrupt handler - should be higher then interrupts PIDSIRQHRTIMER=`pidof sirq-hrtimer/0` #def: 40 htimer of rtkernel - should be also very high PIDWATCHDOG=`pidof watchdog/0` #def: 99 PIDLOADAVG=`pidof loadavg` #def: 50 PIDOFPSXCPUTMR=`pidof posixcputmr/0` #def: 98 PIDIRQ47=`pidof IRQ-47` #def: 40 SPDIF -- any impact? PIDIRQ14=`pidof IRQ-14` #def: 40 PIDIRQ37=`pidof IRQ-37` #def: 40 USB can be put very low PIDIRQ34=`pidof IRQ-34` #def: 90 dma for processor ? PIDSIRNETTX=`pidof sirq-net-tx/0` #def: 40 network transmit PIDSIRNETRX=`pidof sirq-net-rx/0` #def: 40 network receive PIDIRQ17=`pidof IRQ-17` #def: 40 PIDIRQ42=`pidof IRQ-42` #def: 40 PIDIRQ45=`pidof IRQ-45` #def: 40 PIDIRQ102=`pidof IRQ-102` #def: 40 PIDIRQ123=`pidof IRQ-123` #def: 40 PRIOIRQ17=41 PRIOIRQ42=41 PRIOIRQ45=41 PRIOIRQ102=41 PRIOIRQ123=41 PRIOJIVEALSA=45 #PRIOJIVE=0 PRIOSIRQTASKLET0=89 PRIOSIRQHRTIMER=40 PRIOWATCHDOG=0 PRIOLOADAVG=50 PRIODOFPSXCPUTMR=98 PRIOIRQ47=40 PRIOIRQ14=40 PRIOIRQ37=40 PRIOIRQ34=90 PRIOSIRNETTX=40 PRIOSIRNETRX=40 echo "PID - Jive-Alsa: $PIDJIVEALSA" >>$LOG2 echo "PRIO: $PRIOJIVEALSA" >>$LOG2 chrt -f -p $PRIOJIVEALSA $PIDJIVEALSA >>$LOG2 2>&1 #chrt -f -p $PRIOJIVE $PIDJIVE >/dev/null 2>&1 chrt -f -p $PRIOSIRQTASKLET0 $PIDSIRQTASKLET0 >/dev/null 2>&1 chrt -f -p $PRIOSIRQHRTIMER $PIDSIRQHRTIMER >/dev/null 2>&1 chrt -o -p $PRIOWATCHDOG $PIDWATCHDOG >/dev/null 2>&1 chrt -f -p $PRIOLOADAVG $PIDLOADAVG >/dev/null 2>&1 chrt -f -p $PRIODOFPSXCPUTMR $PIDOFPSXCPUTMR >/dev/null 2>&1 chrt -f -p $PRIOIRQ47 $PIDIRQ47 >/dev/null 2>&1 chrt -f -p $PRIOIRQ14 $PIDIRQ14 >/dev/null 2>&1 chrt -f -p $PRIOIRQ37 $PIDIRQ37 >/dev/null 2>&1 chrt -f -p $PRIOIRQ34 $PIDIRQ34 >/dev/null 2>&1 chrt -f -p $PRIOSIRNETTX $PIDSIRNETTX >/dev/null 2>&1 chrt -f -p $PRIOSIRNETRX $PIDSIRNETRX >/dev/null 2>&1 chrt -f -p $PRIOIRQ17 $PIDIRQ17 >/dev/null 2>&1 chrt -f -p $PRIOIRQ42 $PIDIRQ42 >/dev/null 2>&1 chrt -f -p $PRIOIRQ45 $PIDIRQ45 >/dev/null 2>&1 chrt -f -p $PRIOIRQ102 $PIDIRQ102 >/dev/null 2>&1 chrt -f -p $PRIOIRQ123 $PIDIRQ123 >/dev/null 2>&1 -- SBGK ------------------------------------------------------------------------ SBGK's Profile: http://forums.slimdevices.com/member.php?userid=52003 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
