* R: High load average but low cpu (xenomai can be the explanation?)
@ 2009-09-22 8:14 dibacco
2009-09-22 9:32 ` Bosi Daniele
0 siblings, 1 reply; 3+ messages in thread
From: dibacco @ 2009-09-22 8:14 UTC (permalink / raw)
To: Daniele.Bosi, linuxppc-dev@lists•ozlabs.org
It is an AgentX subagent, it does a lot of things like accessing the hardware,
handling messages from the main snmp agent received from an unix socket,
writing files on jffs2 partition, polling hardware for alarms.
If I kill it,
the load goes down. Anyway the subagent only takes 2-3% of the CPU..
Thank
you,
Antonio.
>Da: Daniele.Bosi@mta•it
>
>Can you give us some more details
about your app?
>Is it multithread or single process?
>What do the process do?
>
>Bye Daniele
>
>
>
>-----Messaggio originale-----
>Da: linuxppc-dev-
bounces+daniele.bosi=mta.it@lists•ozlabs.org [mailto:linuxppc-dev-
bounces+daniele.bosi=mta.it@lists•ozlabs.org] Per conto di dibacco@libero•it
>Oggetto: High load average but low cpu (xenomai can be the explanation?)
>
>Hi,
>
>I have an MPC880 @133MHz. If I look into the load (with uptime) I get
>values around 3.0 but my CPU is always under 5 percent (top). How could I
>explain this? I'm using linux 2.6.19 with xenomai but no xenomai application
is
>running at all. I have a cramfs on a nor flash. What could be the problem?
If I
>kill the process I developed the average load goes down.
>
>Thank you,
>Adi
>_______________________________________________
>Linuxppc-dev mailing
list
>Linuxppc-dev@lists•ozlabs.org
>https://lists.ozlabs.org/listinfo/linuxppc-
dev
>_______________________________________________
>Linuxppc-dev mailing list
>Linuxppc-dev@lists•ozlabs.org
>https://lists.ozlabs.org/listinfo/linuxppc-dev
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* R: High load average but low cpu (xenomai can be the explanation?)
2009-09-22 8:14 R: High load average but low cpu (xenomai can be the explanation?) dibacco
@ 2009-09-22 9:32 ` Bosi Daniele
0 siblings, 0 replies; 3+ messages in thread
From: Bosi Daniele @ 2009-09-22 9:32 UTC (permalink / raw)
To: 'dibacco@libero•it', linuxppc-dev@lists•ozlabs.org
I suggest you to take a look at the meaning of the data showed by "/proc/lo=
adavg".
See:
http://www.luci.org/luci-discuss/200210/msg00055.html
for more details.
In my opinion your loadavg of 3.0 means only that in your application there=
is an average of 3 task waiting for running on the CPU. This in general do=
esn't mean that the CPU load must be 100 %.
Maybe there should be some scheduler issues.
If you take a look into your app sources maybe you can know more about what=
happens.
-----Messaggio originale-----
Da: dibacco@libero•it [mailto:dibacco@libero•it]
Inviato: marted=EC 22 settembre 2009 10.15
A: Bosi Daniele; linuxppc-dev@lists•ozlabs.org
Oggetto: R: High load average but low cpu (xenomai can be the explanation?)
It is an AgentX subagent, it does a lot of things like accessing the hardwa=
re,
handling messages from the main snmp agent received from an unix socket,
writing files on jffs2 partition, polling hardware for alarms.
If I kill it,
the load goes down. Anyway the subagent only takes 2-3% of the CPU..
Thank
you,
Antonio.
>Da: Daniele.Bosi@mta•it
>
>Can you give us some more details
about your app?
>Is it multithread or single process?
>What do the process do?
>
>Bye Daniele
>
>
>
>-----Messaggio originale-----
>Da: linuxppc-dev-
bounces+daniele.bosi=3Dmta.it@lists•ozlabs.org [mailto:linuxppc-dev-
bounces+daniele.bosi=3Dmta.it@lists•ozlabs.org] Per conto di dibacco@libero=
.it
>Oggetto: High load average but low cpu (xenomai can be the explanation?)
>
>Hi,
>
>I have an MPC880 @133MHz. If I look into the load (with uptime) I get
>values around 3.0 but my CPU is always under 5 percent (top). How could I
>explain this? I'm using linux 2.6.19 with xenomai but no xenomai applicati=
on
is
>running at all. I have a cramfs on a nor flash. What could be the problem?
If I
>kill the process I developed the average load goes down.
>
>Thank you,
>Adi
>_______________________________________________
>Linuxppc-dev mailing
list
>Linuxppc-dev@lists•ozlabs.org
>https://lists.ozlabs.org/listinfo/linuxppc-
dev
>_______________________________________________
>Linuxppc-dev mailing list
>Linuxppc-dev@lists•ozlabs.org
>https://lists.ozlabs.org/listinfo/linuxppc-dev
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* High load average but low cpu (xenomai can be the explanation?)
@ 2009-09-21 15:13 dibacco
2009-09-21 15:35 ` R: " Bosi Daniele
0 siblings, 1 reply; 3+ messages in thread
From: dibacco @ 2009-09-21 15:13 UTC (permalink / raw)
To: linuxppc-dev
Hi,
I have an MPC880 @133MHz. If I look into the load (with uptime) I get
values around 3.0 but my CPU is always under 5 percent (top). How could I
explain this? I'm using linux 2.6.19 with xenomai but no xenomai application is
running at all. I have a cramfs on a nor flash. What could be the problem? If I
kill the process I developed the average load goes down.
Thank you,
Adi
^ permalink raw reply [flat|nested] 3+ messages in thread
* R: High load average but low cpu (xenomai can be the explanation?)
2009-09-21 15:13 dibacco
@ 2009-09-21 15:35 ` Bosi Daniele
0 siblings, 0 replies; 3+ messages in thread
From: Bosi Daniele @ 2009-09-21 15:35 UTC (permalink / raw)
To: 'dibacco@libero•it', linuxppc-dev@lists•ozlabs.org
Can you give us some more details about your app?
Is it multithread or single process?
What do the process do?
Bye Daniele
-----Messaggio originale-----
Da: linuxppc-dev-bounces+daniele.bosi=3Dmta.it@lists•ozlabs.org [mailto:lin=
uxppc-dev-bounces+daniele.bosi=3Dmta.it@lists•ozlabs.org] Per conto di diba=
cco@libero•it
Inviato: luned=EC 21 settembre 2009 17.13
A: linuxppc-dev@lists•ozlabs.org
Oggetto: High load average but low cpu (xenomai can be the explanation?)
Hi,
I have an MPC880 @133MHz. If I look into the load (with uptime) I get
values around 3.0 but my CPU is always under 5 percent (top). How could I
explain this? I'm using linux 2.6.19 with xenomai but no xenomai applicatio=
n is
running at all. I have a cramfs on a nor flash. What could be the problem? =
If I
kill the process I developed the average load goes down.
Thank you,
Adi
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists•ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
^ permalink raw reply [flat|nested] 3+ messages in thread
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2009-09-22 8:14 R: High load average but low cpu (xenomai can be the explanation?) dibacco
2009-09-22 9:32 ` Bosi Daniele
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2009-09-21 15:13 dibacco
2009-09-21 15:35 ` R: " Bosi Daniele
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