RMGBELGIUM
MIS
Hi all,
I've got the following phenomenon on some of our servers :
when I look at the output of the topas command, the first output I get, looks normal
Kernel 29.9 |#########
User 26.3 |########
Wait 20.4 |######
Idle 23.4 |#######
when I get the first refresh, I get this :
Kernel 54.0 |################
User 46.0 |#############
Wait 0.0 |
Idle 0.0 |
The system is getting a 0% idle time.The same goes with vmstat :
take a look at the output of vmstat 5 2
kthr memory page faults cpu
----- ----------- ------------------------ ------------ -----------
r b avm fre re pi po fr sr cy in sy cs us sy id wa
2 1 934011 6691 0 11 11 183 500 0 566 29270 1209 26 30 23 20
9 3 932412 7538 0 4 3 0 0 0 1152 41167 2626 56 44 0 0
We don't have that problem on our other machines, and the only difference is that the other systems are dual processor, and this one is single proc.
I'm running AIX5.2 on these machines, on 1 of the problem machines ML 4 has been installed, but the problem has't gone away.
Has anyone encountered this kind of behaviour before?
thx in advance,
greetingz and a happy newyear
RMGBelgium
I've got the following phenomenon on some of our servers :
when I look at the output of the topas command, the first output I get, looks normal
Kernel 29.9 |#########
User 26.3 |########
Wait 20.4 |######
Idle 23.4 |#######
when I get the first refresh, I get this :
Kernel 54.0 |################
User 46.0 |#############
Wait 0.0 |
Idle 0.0 |
The system is getting a 0% idle time.The same goes with vmstat :
take a look at the output of vmstat 5 2
kthr memory page faults cpu
----- ----------- ------------------------ ------------ -----------
r b avm fre re pi po fr sr cy in sy cs us sy id wa
2 1 934011 6691 0 11 11 183 500 0 566 29270 1209 26 30 23 20
9 3 932412 7538 0 4 3 0 0 0 1152 41167 2626 56 44 0 0
We don't have that problem on our other machines, and the only difference is that the other systems are dual processor, and this one is single proc.
I'm running AIX5.2 on these machines, on 1 of the problem machines ML 4 has been installed, but the problem has't gone away.
Has anyone encountered this kind of behaviour before?
thx in advance,
greetingz and a happy newyear
RMGBelgium