calcru: runtime went backwards

while playing 8 PCM streams in parallel (it uses almost all CPU power I 
have).

-CURRENT with last changes to src/sys from imp at 2006-02-11 03:58:07 UTC

Copyright (c) 1992-2006 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
 	The Regents of the University of California. All rights reserved.
FreeBSD 7.0-CURRENT #1: Sat Feb 11 12:10:55 MSK 2006
     chibis_at_free.home.local:/usr/obj/usr/src/sys/FREE-IPSEC
WARNING: MPSAFE network stack disabled, expect reduced performance.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD-K6(tm) 3D processor (400.91-MHz 586-class CPU)
   Origin = "AuthenticAMD"  Id = 0x58c  Stepping = 12
   Features=0x8021bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,PGE,MMX>
   AMD Features=0x80000800<SYSCALL,3DNow>
[...]
Timecounter "TSC" frequency 400910496 Hz quality 800
Timecounters tick every 10.000 msec
[...]
emu10kx0: <Creative Audigy [SB0090]> port 0xd400-0xd41f irq 9 at device 9.0 on pci0
emu10kx1: <Creative Audigy 2 [SB0240]> port 0xb800-0xb83f irq 12 at device 10.0 on pci0
emu10kx2: <Creative Audigy 2 Value [SB0400]> port 0xb000-0xb03f irq 10 at device 11.0 on pci0
pcm0: <EMU10Kx DSP FRONT PCM Interface> on emu10kx0
pcm0: <TriTech TR28602 AC97 Codec>
pcm1: <EMU10Kx DSP REAR PCM Interface> on emu10kx0
pcm2: <EMU10Kx DSP CENTER PCM Interface> on emu10kx0
pcm3: <EMU10Kx DSP SUBWOOFER PCM Interface> on emu10kx0
pcm4: <EMU10Kx DSP FRONT PCM Interface> on emu10kx1
pcm4: <SigmaTel STAC9721/23 AC97 Codec>
pcm5: <EMU10Kx DSP REAR PCM Interface> on emu10kx1
pcm6: <EMU10Kx DSP CENTER PCM Interface> on emu10kx1
pcm7: <EMU10Kx DSP SUBWOOFER PCM Interface> on emu10kx1
pcm8: <EMU10Kx DSP FRONT PCM Interface> on emu10kx2
pcm8: <SigmaTel STAC9750/51 AC97 Codec>
pcm9: <EMU10Kx DSP REAR PCM Interface> on emu10kx2
pcm10: <EMU10Kx DSP CENTER PCM Interface> on emu10kx2
pcm11: <EMU10Kx DSP SUBWOOFER PCM Interface> on emu10kx2
pcm12: <EMU10Kx DSP SIDE PCM Interface> on emu10kx2
[...]
calcru: runtime went backwards from 46009196009 usec to 46001459072 usec for pid 1 (init)
calcru: runtime went backwards from 46009196009 usec to 46001459072 usec for pid 1 (init)
calcru: runtime went backwards from 46008790867 usec to 3262907 usec for pid 1084 (madplay)
calcru: runtime went backwards from 46008821030 usec to 3312176 usec for pid 1083 (madplay)
calcru: runtime went backwards from 7422841 usec to 3311313 usec for pid 1082 (madplay)
calcru: runtime went backwards from 92013131994 usec to 46001074632 usec for pid 609 (mc)
calcru: runtime went backwards from 46008790867 usec to 3262907 usec for pid 1084 (madplay)
calcru: runtime went backwards from 46008821030 usec to 3312176 usec for pid 1083 (madplay)
calcru: runtime went backwards from 7422841 usec to 3311313 usec for pid 1082 (madplay)
calcru: runtime went backwards from 92013131994 usec to 46001074632 usec for pid 609 (mc)

calcru: runtime went backwards from 92013282557 usec to 46001350236 usec for pid 609 (mc)
calcru: runtime went backwards from 138048071939 usec to 13099757 usec for pid 1 (init)
[many times EXACTLY the same pair]
calcru: runtime went backwards from 92013282557 usec to 46001350236 usec for pid 609 (mc)
calcru: runtime went backwards from 138048071939 usec to 13099757 usec for pid 1 (init)

ps -u:
11:38AM  up  2:33, 5 users, load averages: 0.12, 0.66, 0.40
USER   PID %CPU %MEM   VSZ   RSS  TT  STAT STARTED      TIME COMMAND
root   481  0.0  0.5 50464  1360  v1  Is    9:05AM 766:41.52 login [pam]

Yuriy Tsibizov