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| server utilization - WMB |
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| ANILK |
 Posted: Wed Feb 24, 2016 2:37 am Post subject: server utilization - WMB |
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Acolyte
Joined: 01 May 2014
Posts: 61
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Hi Friends,
We are running WMB 8.0.0.2 on AIX ,we are planing to increase the broker transaction load about 5 times , I have calculated the current server utilization to decide whether we need to increase server hardware size or not .
Steps carried-out to calculate current server status
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1) with this command "ps -eko vsz,rssize" we got total in use "real memory" and "virtual memory"
2) calculated total JVM heap allocated to all the EG's
3) Maximum CPU utilization from "nmon" report
Questions
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1) to calculate total used memory, do i need to check only "real memory" usage or i need to include "virtual memory" usage also ?
2) Total JVM heap allocate to all EG's together should not cross Total RAM ?
3) from the total 6 core cpu we use only 2.5 core, so server can handle more load ?
4) is there anything else i need to check to determine the server health?
Kindly share your valuable advice .
Thanks & Regards,
Anil |
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| rammer |
| Posted: Wed Feb 24, 2016 4:26 am Post subject: |
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Partisan
Joined: 02 May 2002
Posts: 359
Location: England
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| no update, just want to follow thread... |
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| ruimadaleno |
| Posted: Wed Feb 24, 2016 4:38 am Post subject: |
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Master
Joined: 08 May 2014
Posts: 274
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5 times increment is huge 
you should perform some check's beside hardware.
Do you use queues ? are they configured to handle the additional load ?
Do you use any kind of log framework , maybe monitoring ? are the monitoring infrastructure ready to handle the additional load ?
Do you use any other services (rest,soap,etc) ? are they capable of handling 5 times more requests ?
how about network load/usage performance ?
_________________
Best regards
Rui Madaleno |
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| fjb_saper |
| Posted: Wed Feb 24, 2016 5:29 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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And don't forget licensing... 
_________________
MQ & Broker admin |
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| ANILK |
| Posted: Wed Feb 24, 2016 8:03 pm Post subject: |
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Acolyte
Joined: 01 May 2014
Posts: 61
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Hi Friends,
Thanks for the advice, the hardware sizing and licensing will be taken care by the client, my responsibility is only to calculate current utilization.
(ex:) how much percentage of RAM & CPU is utilized for the current existing load.
Kindly help me to validate the steps which i used to calculate the utilization.
1) when i run this command "ps -eko vsz,rssize" the output shows total used virtual memory and real memory .
to calculate total used memory do i need to check only "real memory" usage or i need to include "virtual memory" usage also ?
2) Minimum JVM heap and Maximum JVM heap set in EG property, which one should i use for memory usage calculation
Thanks
Anil |
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| ruimadaleno |
| Posted: Thu Feb 25, 2016 1:55 am Post subject: |
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Master
Joined: 08 May 2014
Posts: 274
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| ANILK wrote: |
Hi Friends,
2) Minimum JVM heap and Maximum JVM heap set in EG property, which one should i use for memory usage calculation
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ok, you have Min JVM heap and Max JVm heap , but .. what is the real usage of it ? does the JVM heap goes above 80% of max jvm heap or does it run bellow 40% of jvm max heap ? does it have spikes (busy hours ? busy days ? busy months ? ) or the jvm usage is smooth and constant all over the day/month ? what is the amount of time spent in garbage collect ?
If the usage is going to increase 5 times do you plan to increment JVM heap by a factor of 5 ?
_________________
Best regards
Rui Madaleno |
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