1) I'm still trying to figure this one out (just started with ganglia a week ago :-) ) 2) Like I stated in the previous message, this is related to the total number of virtual CPUs allocated to the LPAR. Check out the 'Online Virtual CPUs' of lparstat -i (if you are using AIX) 3) At the moment, I am still figuring this out. I am currently digging deeper into the memory allocation/usage. (which is very complex in AIX)
Miguel SANDERS ArcelorMittal Gent UNIX System Administrator | SAP Infrastructure Group John Kennedylaan 51, B-9042 Gent T +32 9 347 3538 | F +32 9 347 4901 | M +32478 805 023 E [EMAIL PROTECTED] www.arcelormittal.com/gent -----Oorspronkelijk bericht----- Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Namens kmet Gazeta.pl Verzonden: dinsdag 17 juni 2008 14:41 Aan: [email protected] Onderwerp: [Ganglia-general] (no subject) We have ganglia on IBM p55 (2x2 CPU) installed (8 lpars, aix5.3). In ganglia this machine is defined as ganglia cluster, lpars are nodes. It works well, but I have doubts about its usefulness on lpars, especially in CPU monitoring. Metrics like cpu_[user|wait|system|idle] and graph "CPU last our" are wrong both in shared and dedicated environment. I can understand why it's wrong in shared CPU. But I don't know why is that with dedicated CPU ? I can see different values with ganglia and nmon. I.e: LPAR1 : 2 dedicated CPU, usage around 30% of (2) CPU for 2 hours (topas). Ganglia (CPU last hour) shows : 15 % nmon (physical avg) : 25 % - which is true I think . 1. Why is that ? 2. "CPU total" shows 32 . I think it shows 8 (lpar) x 4, but this is not the real number of CPU. Can I change it ? 3. Which metrics do you monitor in shared CPU environment ? Which are reliable ? regards ------------------------------------------------------------------------ - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Ganglia-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ganglia-general **** This message and any attachment are confidential, intended solely for the use of the individual or entity to whom it is addressed and may be protected by professional secrecy or intellectual property rights. If you have received it by mistake, or are not the named recipient(s), please immediately notify the sender and delete the message. You are hereby notified that any unauthorized use, copying or dissemination of any or all information contained in this message is prohibited. Arcelormittal shall not be liable for the message if altered, falsified, or in case of error in the recipient. This message does not constitute any right or commitment for ArcelorMittal except when expressly agreed otherwise in writing in a separate agreement. **** ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Ganglia-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ganglia-general
