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Intimate Shared Memory (ISM)


 
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Operating Systems Solaris Intimate Shared Memory (ISM)
# 15  
Old 10-20-2009
Instead of vmstat, you should run "prstat -Z" on the global zone to figure out how the memory is used by your zones. There is no dedicated swap for zones, the virtual memory is global.
Have you capped the physical, swap or locked memory for that zone ?
What Solaris update are you using ?
# 16  
Old 10-20-2009
Ok, I'll use the prstat -Z for the next slow response time. Since this doesn't occur every day.

I already use capped for physical, locked, and swap.

I'm not sure that we use any solaris update, currently the OS version is sunOS 5.10.

I don't recall if I ever mention this, but the swap -s in my global zone is works fine, the value of pages swapped in/out is not 0, meanwhile in container (in which the running out of memory occur) the value of pages swapped in/out from command swap -s is 0.

Thanks.
# 17  
Old 10-20-2009
Ah! Malloc failed. That means you don't have enough swap to back up the allocation request (configuration issue) or you ran out of vitual address space (most likely a programming issue).
# 18  
Old 10-20-2009
Quote:
Originally Posted by sprout009
I already use capped for physical, locked, and swap.
If you are capping memory, it is to be expected you ran out of it faster than in the global zone.
Can you tell more about the cappings you set ?
# 19  
Old 10-21-2009
Hereby the capped-memory setting in my zone:

Code:
capped-memory:
        physical: 8G
        [swap: 16G]
        [locked: 8G]

I set the limit to unlimited.

Thanks.
# 20  
Old 10-21-2009
What are your kernel / project settings within your zones ??

whats the output for :-

Code:
projects -l

and

Code:
zonecfg -z [zonename] info

Code:
# pooladm

Sounds to me you need to up a few of your project settings.

SBK
# 21  
Old 10-21-2009
Hi,

Here my project maximum setting:
Code:
attribs: process.max-sem-nsems=(priv,2048,deny)
                 project.max-sem-ids=(priv,1024,deny)
                 project.max-shm-ids=(priv,256,deny)
                 project.max-shm-memory=(priv,18446744073709551615,deny)

Here the zone info:
Code:
dedicated-cpu:
        ncpus: 8
capped-memory:
        physical: 8G
        [swap: 16G]
        [locked: 8G]
rctl:
        name: zone.max-swap
        value: (priv=privileged,limit=17179869184,action=deny)
rctl:
        name: zone.max-locked-memory
        value: (priv=privileged,limit=8589934592,action=deny)

pooladm command results on 8 cpu's all online.

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