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vmstat displays cpu idle time at 100%


 
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Operating Systems HP-UX vmstat displays cpu idle time at 100%
# 1  
Old 08-06-2008
vmstat displays cpu idle time at 100%

Since yesterday the vmstat command is displaying the cpu idle time at 100%At each time interval. It never changes. Not sure what it means other than it Quit calculating that stat. And I'm curious why. Using sar I can display a correctCpu idle percent, but vmstat does not. Any ideas why or suggestion to resolve.I was thinking a reboot might cure it, but it's a guess. Server has been up 83 days. We are running HP-UX B.11.11
# 2  
Old 08-06-2008
We use vmstat constantly on all our HP-UX servers and we have never had a problem with it reporting. What make you think its wrong? Can you show some examples

We use 11.11 or 11.23.

And we hardly ever reboot.
# 3  
Old 08-06-2008
Here is a vmstat output and following is sar output on the same server.

procs memory page faults cpu
r b w avm free re at pi po fr de sr in sy cs us sy id
1 0 0 438406 32431 0 0 0 0 0 0 0 0 3 1 0 0 100
1 0 0 440543 32386 2 1 0 0 0 0 0 1036 10111 4016 0 0 100
1 0 0 440543 32386 2 0 0 0 0 0 0 1035 9864 3981 0 0 100
1 0 0 440543 32386 1 0 0 0 0 0 0 1041 10358 3994 0 0 100
1 0 0 440543 32386 0 0 0 0 0 0 0 1037 10075 3973 0 0 100
1 0 0 440543 32386 0 0 0 0 0 0 0 1035 9846 3961 0 0 100
1 0 0 440543 32386 0 0 0 0 0 0 0 1039 9718 3958 0 0 100
1 0 0 440543 32386 0 0 0 0 0 0 0 1045 9575 3948 0 0 100

HP-UX egateliv B.11.11 U 9000/800 08/06/08

16:39:22 %usr %sys %wio %idle
16:39:23 1 4 0 95
16:39:24 0 4 1 95
16:39:25 0 4 1 95
16:39:26 2 3 3 92
16:39:27 1 2 1 96
16:39:28 0 3 1 96
16:39:29 0 2 1 97
16:39:30 31 9 11 48
16:39:31 32 8 26 34
16:39:32 25 8 8 59
16:39:33 36 9 17 38
16:39:34 1 4 0 95
16:39:35 0 5 2 93
16:39:36 23 5 3 69
16:39:37 44 9 7 40
16:39:38 10 8 6 76
16:39:39 0 3 0 97
16:39:40 14 6 24 56
16:39:41 31 10 30 29
16:39:42 29 6 7 58
16:39:43 0 6 1 93
16:39:44 0 3 0 97
16:39:45 0 2 0 98
16:39:46 1 5 2 92
16:39:47 1 3 1 95

Average 11 5 6 77

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Test Your Knowledge in Computers #398
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HP-UX offers operating system-level virtualization features such as hardware partitions, isolated OS virtual partitions on cell-based servers, and HP Integrity Virtual Machines (HPVM) on all Integrity servers.
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