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тАО03-07-2011 10:18 PM
тАО03-07-2011 10:18 PM
oracle login slow
OS:HP-UX 11.11
Oracle Application server
RAM:8GB
swap:12GB
Kernel parameters:
nkthread 7184
nproc 4096
total processes : 1179
Total forms connections : 744
Total HTTP server processes: 242
Iam facing a problem of Oracle Application 9.0.1.4.0 process damm slow access to the oracle login users via java applet.
Although the RAM usage is only approx 15% , But swapping is higher, Why it is not consuming more RAM for fast processing.
Does this require to change "any kernel parameters"
Kindly find below more details about the memory utilization:
total processes : 1179
Total forms connections : 744
Total HTTP server processes: 242
# swapinfo -tam
Mb Mb Mb PCT START/ Mb
TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME
dev 4096 734 3362 18% 0 - 1 /dev/vg00/lvol2
dev 4092 738 3354 18% 0 - 1 /dev/vgswapapp1_1/lvswap1_1
dev 4092 738 3354 18% 0 - 1 /dev/vgswapapp1_2/lvswap1_2
localfs 800 0 800 0% 800 0 1 /logs/paging
reserve - 9625 -9625
memory 6301 762 5539 12%
total 19381 12597 6784 65% - 0 -
#Regard's
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тАО03-08-2011 12:11 AM
тАО03-08-2011 12:11 AM
Re: oracle login slow
Any valuable input's will be appreciated .....
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тАО03-08-2011 12:57 AM
тАО03-08-2011 12:57 AM
Re: oracle login slow
you might have been started jvm with low memory, as connection increases jvm makes more garbage collection with more durations. look at the oc4j logs in opmn/logs directory anc check GC durations.
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тАО03-08-2011 01:52 AM
тАО03-08-2011 01:52 AM
Re: oracle login slow
I appreciate your quick response,
The 172.1.100.4 belongs to infrastructure DB node.
Kindly find an attached for your review and feedback to over-come with this issue .
Thanks& Regards
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тАО03-08-2011 01:52 AM
тАО03-08-2011 01:52 AM
Re: oracle login slow
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тАО03-08-2011 01:53 AM
тАО03-08-2011 01:53 AM
Re: oracle login slow
You can't tell if it is swapping unless you provide the "vmstat 1 8" and look at the "po" column.
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тАО03-08-2011 02:56 AM
тАО03-08-2011 02:56 AM
Re: oracle login slow
=================
procs memory page faults cpu
r b w avm free re at pi po fr de sr in sy cs us sy id
54 1 0 2294623 99604 55 0 6 8 0 0 50 753 6057 1586 8 5 88
54 1 0 2294623 98919 411 1 35 0 0 0 0 2289 12734 7550 35 14 51
54 1 0 2294623 98141 348 0 28 0 0 0 0 2280 12726 7288 33 17 50
54 1 0 2294623 97525 329 0 23 0 0 0 0 2197 12648 7367 29 15 56
54 1 0 2294623 97437 307 0 24 0 0 0 0 2117 12356 7164 20 12 68
54 1 0 2294623 98032 253 0 19 0 0 0 0 2000 11877 6758 19 9 72
54 1 0 2294623 97307 192 0 13 0 0 0 0 1896 11460 6408 28 13 59
54 1 0 2294623 100893 158 0 19 0 0 0 0 1845 11081 6369 22 14 65
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тАО03-08-2011 03:02 AM
тАО03-08-2011 03:02 AM
Re: oracle login slow
avm free re at pi po
2294623 99604 55 0 6 8
2294623 98919 411 1 35 0
2294623 98141 348 0 28 0
2294623 97525 329 0 23 0
2294623 97437 307 0 24 0
2294623 98032 253 0 19 0
2294623 97307 192 0 13 0
2294623 100893 158 0 19 0
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тАО03-08-2011 03:43 AM
тАО03-08-2011 03:43 AM
Re: oracle login slow
>2294623 99604 55 0 6 8
>2294623 98919 411 1 35 0
Basically you aren't paging out (swapping).
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тАО03-08-2011 04:09 AM
тАО03-08-2011 04:09 AM
Re: oracle login slow
But below output shows system swapping 65% where as real time memory RAM only 12%,
total processes : 1179
Total forms connections : 744
Total HTTP server processes: 242
# swapinfo -tam
Mb Mb Mb PCT START/ Mb
TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME
dev 4096 734 3362 18% 0 - 1 /dev/vg00/lvol2
dev 4092 738 3354 18% 0 - 1 /dev/vgswapapp1_1/lvswap1_1
dev 4092 738 3354 18% 0 - 1 /dev/vgswapapp1_2/lvswap1_2
localfs 800 0 800 0% 800 0 1 /logs/paging
reserve - 9625 -9625
memory 6301 762 5539 12%
total 19381 12597 6784 65% - 0 -
Regard's