SBGK;680678 Wrote: > 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. oh and sweet, sweet sound. > > 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
Initial impressions: 1. I stopped mid-music, did this mod and picked it up again exactly where I left off. Oddly, it sounded a notch louder, so I backed my volume down a little to compensate. 2. Sounds to me like all of the good qualities of the p.62 mods have been boosted a bit and there is some added fullness, too. You may have, indeed, outdone yourself. BTW, I typically use the last 10 minutes of a 24/96 recording of Mahler's 2nd symphony as my initial reference---has everything---lots of dynamics, solo and choral voice, triangles, bells, gongs, etc. Usually I can tell if something's missing, better/worse. I know it like the proverbial back of my hand. As to audimuze's comment: Klaus' TT mods are for real. Don't poo-poo this until you've actually tried implementing them in full. SBGK is, as another poster put it, standing on Klaus' shoulders and it wouild appear that he's onto something that'll incrementally improve on what Klaus has done. As to the rest, my eyebrows certainly go up now and then, but I'll gladly take a bit of that as long as the good stuff keeps rollin'. -- rgro Rg System information ------------------------ Main: PS Audio Quintet > Vortexbox > Touch (wired) via optical > Rega DAC > LFD LE IV Signature amp > VA Mozart Grands > REL Acoustics R305 sub. Home Theatre: Duet/SBR (Wired) > Pioneer VSX 919 > Energy Take 5 Classic 5.1. SBS 7.7.1 r33751 on a Vortexbox Appliance, V 2.0. Touch w/Hardware V.5. Touch: FW 7.7.1 r9558. Duet: FW 7.7.1 r9557. ------------------------------------------------------------------------ rgro's Profile: http://forums.slimdevices.com/member.php?userid=34348 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
