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тАО11-30-2006 08:22 PM
тАО11-30-2006 08:22 PM
ulimit -m
Server A - 4063808
Server B - 4060408
I have checked the output from sysconfig -q ipc, sysconfig -q vm and sysconfig -q proc and the only paramter different ( Apart from the obvious swap device ) is the per_proc_data_size is different on each server
Server A per_proc_data_size = 1610612736
Server B per_proc_data_size = 3221225472
But I dont think this has anything to do with it.
Does anyone have an ideas why the output of ulimit -m is different on these servers now ?
Thanks in aticipation
Ian
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тАО12-01-2006 04:14 AM
тАО12-01-2006 04:14 AM
Re: ulimit -m
I would use 'vmstat -P' for some details on physical memory
hope this helps a little,
Hein.
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тАО12-01-2006 06:49 AM
тАО12-01-2006 06:49 AM
Re: ulimit -m
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тАО12-03-2006 08:28 PM
тАО12-03-2006 08:28 PM
Re: ulimit -m
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тАО12-03-2006 09:10 PM
тАО12-03-2006 09:10 PM
Re: ulimit -m
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тАО12-03-2006 09:55 PM
тАО12-03-2006 09:55 PM
Re: ulimit -m
ulimit -m
4060408
Managed Pages Break Down:
free pages = 355652
active pages = 13580
inactive pages = 30758
wired pages = 50638
ubc pages = 57188
==================
Total = 507816
These dont seem to match or am I missing something ?
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тАО12-03-2006 10:13 PM
тАО12-03-2006 10:13 PM
Re: ulimit -m
So, 4060408 KB
The 'Managed' pages total = 507816 Pages
So, (507816 * 8192)/1024 = 4062528 KB
Difference: 2120 KB = 2.07 MB
The 'scavenge' space seem to tally with this. So, I think:
ulimit mem size = (Sum of 'managed' pages - scavenge space)
[The formula works for the other server as well!]
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тАО12-03-2006 10:55 PM
тАО12-03-2006 10:55 PM
Re: ulimit -m
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тАО12-04-2006 04:17 AM
тАО12-04-2006 04:17 AM
Re: ulimit -m
I suspect the the effect on per_proc_data is page table entry pages, multiplies by the number of active processes. If the application is going to be the same, then one of the two settings is 'better':
- allows the right growth
- doesn't waste (modest) memory
Pick that value and move on!
Regards,
Hein
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тАО12-04-2006 02:27 PM
тАО12-04-2006 02:27 PM
Re: ulimit -m
PS: You may check out http://forums1.itrc.hp.com/service/forums/helptips.do?#28 to learn about the member point system in this forum.