On 04/ 5/11 08:17 AM, Li, Aubrey wrote:
Hi, any update of this issue? thanks, -Aubrey
No update. The xcalls/speedstep_pstate_transition issue is still there
in b162. This is with an Intel i7 980X. Someone else has reported
a similar issue with an AMD CPU.
I don't believe the problem is directly associated with user processes.
If I kill a process listed in the powertop output, the xcall/pstate
just get assigned to another user process.
OpenSolaris PowerTOP version 1.2
C-states (idle power) Avg Residency P-states
(frequencies)
C0 (cpu running) (15.4%) 1596 Mhz
74.0%
C1 1.7ms (39.0%) 1729 Mhz
0.0%
C2 0.0ms (0.0%) 1862 Mhz
0.0%
C3 0.0ms (45.6%) 1995 Mhz
0.0%
2128
Mhz 0.0%
2261
Mhz 0.0%
2394
Mhz 0.0%
2527
Mhz 0.0%
2660
Mhz 0.0%
2793
Mhz 0.0%
2926
Mhz 0.0%
3059
Mhz 0.0%
3192
Mhz 0.0%
3325
Mhz 0.0%
3428
Mhz(turbo) 26.0%
Wakeups-from-idle per second: 163953.4 interval: 5.0s
no ACPI power usage estimate available
Top causes for wakeups:
22.4% (36683.0) sched : <xcalls> unix`dtrace_xcall_func
0.7% (1182.2) java : <xcalls>
unix`speedstep_pstate_transition
0.7% (1179.4) sched : <xcalls>
unix`speedstep_pstate_transition
0.4% (609.6) <kernel> : genunix`clock
0.4% (582.0) <kernel> : genunix`cv_wakeup
0.2% (305.0) <kernel> : SDC`sysdc_update
0.1% (229.5) <kernel> : genunix`lwp_timer_timeout
0.1% (164.1) thunderbird-bin : <xcalls>
unix`speedstep_pstate_transition
0.1% (140.7) <kernel> :
uhci`uhci_handle_root_hub_status_change
0.1% ( 90.0) Xorg : <xcalls>
unix`speedstep_pstate_transition
0.0% ( 79.0) <interrupt> : ahci#0
0.0% ( 74.1) <kernel> : cpudrv`cpudrv_monitor_disp
0.0% ( 62.3) zpool-rpool : <xcalls>
unix`speedstep_pstate_transition
0.0% ( 52.3) <interrupt> : ehci#0
0.0% ( 46.9) <kernel> :
ehci`ehci_handle_root_hub_status_change
0.0% ( 36.5) <kernel> : uhci`uhci_cmd_timeout_hdlr
0.0% ( 26.3) fsflush : <xcalls>
unix`speedstep_pstate_transition
0.0% ( 24.4) <kernel> : genunix`schedpaging
0.0% ( 24.2) metacity : <xcalls>
unix`speedstep_pstate_transition
0.0% ( 19.8) zpool-myhome : <xcalls>
unix`speedstep_pstate_transition
0.0% ( 15.4) gnome-terminal : <xcalls>
unix`speedstep_pstate_transition
0.0% ( 10.4) sched : <xcalls> unix`hati_demap_func
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