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sar -v output.

 
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Rudi Swennen_1
Occasional Contributor

sar -v output.

Hello,

at work I have a unix system: HP-UX tensing B.10.20 A 9000/800 2000247853 two-user license. Since 2 day he's giving errors like: 10/03/3001 - 18:35
Out of memory during request for 8216 bytes, total sbrk() is 1253640 bytes!

11/03/2003 - 10:34
Out of memory during request for 1016 bytes, total sbrk() is 49416 bytes!
fork: Not enough space.
And when I execute sar -v 1 1 this output is generated:
15:05:09 text-sz ov proc-sz ov inod-sz ov file-sz ov
15:05:10 N/A N/A 376/2068 0 2884/2884 0 1521/4418 0.
Is the inode-size correlated to the memmory problems? Is it normal that the inode-size actual and max are alike?

Thanks,

Rudi
4 REPLIES 4
Stefan Farrelly
Honored Contributor

Re: sar -v output.

Yes, its normal the inode-size actual and max are the same - its a cache table to the closer to the max the actual is the better the performance.

Your error fork: not enough space
means you have run out of swap space. Check with swapinfo -mt
Youve probably run out of memory first, now out of swap. You should add some more swap or close down some processes that are using lots of memory.
Im from Palmerston North, New Zealand, but somehow ended up in London...
David_246
Trusted Contributor

Re: sar -v output.

Hoi Rudi,

I attached a program I use for determing the use of swap and claimed memory.

Regs David
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Steven E. Protter
Exalted Contributor

Re: sar -v output.

Greetings,

I've attached a more general background performance data collection script.

You can modify the data collection window pretty easily. It's production, a mod of womething HP sent me.

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Steven E Protter
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Sridhar Bhaskarla
Honored Contributor
Solution

Re: sar -v output.

Hi Rudi,

What is more important is to keep an eye on "ov" column next to each parameter. If it is greater than 1, then there were cases of overflow.

Your sar -v looks good.

You may be running out of swap space. You may not swap but will need enough space to reserve the memory for new processes.

Check your swapinfo -t and see if the "total" is near 100%. If so, you would need to add more swap.

-Sri
You may be disappointed if you fail, but you are doomed if you don't try