Messages in this thread | | | Date | Sat, 21 Jun 2008 21:16:37 +0200 | From | "Vegard Nossum" <> | Subject | v2.6.26-rc7: Negative powertop values |
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Hi,
I was testing v2.6.26-rc7 by running lmbench and hotplug/-unplugging CPUs and a few other programs at the same time. Powertop was showing a negative number of wakeups/second and average C3 residency was something really insane. Is there anything strange with this schedstat file, or is there another file I should look at that can explain the strange powertop numbers? Or maybe it's just an artifact of powertop and this has nothing to do with the kernel?
powertop:
Cn Avg residency P-states (frequencies) C0 (cpu running) (105.5%) 1467 Mhz 80.7% C1 0.0ms ( 0.0%) 1067 Mhz 0.4% C2 0.0ms ( 0.0%) 800 Mhz 19.0% C3 0.0ms (1288344194138.5%)
Wakeups-from-idle per second : -6.2 interval: 2.0s
# cat /proc/schedstat version 14 timestamp 811305 cpu0 0 0 0 545 0 5733898 257804 3325833 3064649 6916730262519 21980606970853 5438836 domain0 <NULL> 1514 1081 425 452096 12 10 0 1081 91 91 0 0 0 0 0 91 5916 4168 1715 1859096 34 13 4 4164 4 0 4 0 0 0 0 0 0 1013 18883 0 cpu1 0 0 0 1279 0 12508366 1294362 7173738 6484092 1515315020607 22231002791887 11146865 domain0 <NULL> 313 219 88 154083 10 3 0 219 104 104 0 527 0 0 0 104 1077 894 163 467031 41 5 0 894 1 0 1 0 0 0 0 0 0 455 14689 0
Vegard
-- "The animistic metaphor of the bug that maliciously sneaked in while the programmer was not looking is intellectually dishonest as it disguises that the error is the programmer's own creation." -- E. W. Dijkstra, EWD1036
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