Kommentare zu: The problem with SLA monitoring in virtualized environments http://blog.dynatrace.com/2009/09/23/the-problem-with-sla-monitoring-in-virtualized-environments/ Sat, 11 Feb 2012 09:39:39 +0000 hourly 1 http://wordpress.org/?v=3.1.3 Von: Why Perfomance Managent is easier in public than onpremise clouds Application Performance, Scalability and Architecture – The dynaTrace Blog http://blog.dynatrace.com/2009/09/23/the-problem-with-sla-monitoring-in-virtualized-environments/comment-page-1/#comment-48560 Why Perfomance Managent is easier in public than onpremise clouds Application Performance, Scalability and Architecture – The dynaTrace Blog Thu, 26 May 2011 11:38:00 +0000 http://blog.dynatrace.com/?p=932#comment-48560 [...] problem with timekeeping is well known in the VMWare community. There is a very good VMWare whitepaper that explains this in [...] [...] problem with timekeeping is well known in the VMWare community. There is a very good VMWare whitepaper that explains this in [...]

]]> Von: Tomasz Szreder http://blog.dynatrace.com/2009/09/23/the-problem-with-sla-monitoring-in-virtualized-environments/comment-page-1/#comment-30698 Tomasz Szreder Fri, 07 Jan 2011 13:52:41 +0000 http://blog.dynatrace.com/?p=932#comment-30698 Hi, the VMware's Pseudo Performance Counters you mention seem to be a good solution to the timekeeping issue I am experiencing with VMware virtual machines (collected timestamps are inaccurate beyond acceptable levels). The problem is, I have followed the instructions from the VMware whitepaper on timekeeping but I can't seem to get it work using a simple assembly code, as I explain here: http://communities.vmware.com/message/1669951 . Do you think you could spare a minute and point me in the right direction? Thanks, Tomasz Szreder Hi,
the VMware’s Pseudo Performance Counters you mention seem to be a good solution to the timekeeping issue I am experiencing with VMware virtual machines (collected timestamps are inaccurate beyond acceptable levels). The problem is, I have followed the instructions from the VMware whitepaper on timekeeping but I can’t seem to get it work using a simple assembly code, as I explain here: http://communities.vmware.com/message/1669951 . Do you think you could spare a minute and point me in the right direction?
Thanks,
Tomasz Szreder

]]> Von: andy.edmonds.be › links for 2009-11-01 http://blog.dynatrace.com/2009/09/23/the-problem-with-sla-monitoring-in-virtualized-environments/comment-page-1/#comment-7806 andy.edmonds.be › links for 2009-11-01 Mon, 02 Nov 2009 00:35:17 +0000 http://blog.dynatrace.com/?p=932#comment-7806 [...] The problem with SLA monitoring in virtualized environments Performance, Scalability and Architectur... (tags: performance virtualization monitoring sla) [...] [...] The problem with SLA monitoring in virtualized environments Performance, Scalability and Architectur… (tags: performance virtualization monitoring sla) [...]

]]> Von: Alois Reitbauer http://blog.dynatrace.com/2009/09/23/the-problem-with-sla-monitoring-in-virtualized-environments/comment-page-1/#comment-6540 Alois Reitbauer Mon, 05 Oct 2009 12:08:36 +0000 http://blog.dynatrace.com/?p=932#comment-6540 John, and what is the IBM answer to that problem. Did they consider the problem in their monitoring solutions? John,

and what is the IBM answer to that problem. Did they consider the problem in their monitoring solutions?

]]> Von: John Strumila http://blog.dynatrace.com/2009/09/23/the-problem-with-sla-monitoring-in-virtualized-environments/comment-page-1/#comment-6530 John Strumila Mon, 05 Oct 2009 00:50:18 +0000 http://blog.dynatrace.com/?p=932#comment-6530 Yep, exactly the same issues as documented by ibm 30 years ago under lpars. Of course type 30_v were still much more accurate. Yep, exactly the same issues as documented by ibm 30 years ago under lpars. Of course type 30_v were still much more accurate.

]]> Von: Andreas Grabner http://blog.dynatrace.com/2009/09/23/the-problem-with-sla-monitoring-in-virtualized-environments/comment-page-1/#comment-6447 Andreas Grabner Wed, 30 Sep 2009 11:38:26 +0000 http://blog.dynatrace.com/?p=932#comment-6447 @Stuart I am talking about the Pseudo Performance Counters that are referenced in the VMWare White Paper. This feature can be enabled in the VM Configuration for a virtual machine. Once enabled you have additional process registers that you can read from your application code. It has nothing to do with Windows Performance Counters. For more details check out the White Paper and search for Pseudo Performance Counters. @Stuart
I am talking about the Pseudo Performance Counters that are referenced in the VMWare White Paper. This feature can be enabled in the VM Configuration for a virtual machine. Once enabled you have additional process registers that you can read from your application code. It has nothing to do with Windows Performance Counters.
For more details check out the White Paper and search for Pseudo Performance Counters.

]]> Von: Stuart Moncrieff http://blog.dynatrace.com/2009/09/23/the-problem-with-sla-monitoring-in-virtualized-environments/comment-page-1/#comment-6436 Stuart Moncrieff Wed, 30 Sep 2009 01:13:42 +0000 http://blog.dynatrace.com/?p=932#comment-6436 When you say... <em>"Pseudo Performance Counters are made available via virtual processor registers that can be accessed from any application within the Virtual Machine."</em> ...do you mean the Windows Perfmon counters that are under the "VMware" performance object? Cheers, Stuart. When you say…

“Pseudo Performance Counters are made available via virtual processor registers that can be accessed from any application within the Virtual Machine.”

…do you mean the Windows Perfmon counters that are under the “VMware” performance object?

Cheers,
Stuart.

]]> Von: Martijn Ruff http://blog.dynatrace.com/2009/09/23/the-problem-with-sla-monitoring-in-virtualized-environments/comment-page-1/#comment-6392 Martijn Ruff Mon, 28 Sep 2009 10:31:56 +0000 http://blog.dynatrace.com/?p=932#comment-6392 Great article. I especially like the first three figures, which explain the time keeping issues in a very understandable way. This visualization can be used to explain matters to management without becoming too technical. Great article. I especially like the first three figures, which explain the time keeping issues in a very understandable way. This visualization can be used to explain matters to management without becoming too technical.

]]> Von: Toshiba REGZA 42-Inch 1080p LCD HD TV | Everything about lcd tv http://blog.dynatrace.com/2009/09/23/the-problem-with-sla-monitoring-in-virtualized-environments/comment-page-1/#comment-6336 Toshiba REGZA 42-Inch 1080p LCD HD TV | Everything about lcd tv Fri, 25 Sep 2009 07:03:33 +0000 http://blog.dynatrace.com/?p=932#comment-6336 [...] The problem with SLA monitoring in virtualized environments … [...] [...] The problem with SLA monitoring in virtualized environments … [...]

]]> Von: Will Pedley Racing | Adam Arnold - The Smarter CEO http://blog.dynatrace.com/2009/09/23/the-problem-with-sla-monitoring-in-virtualized-environments/comment-page-1/#comment-6330 Will Pedley Racing | Adam Arnold - The Smarter CEO Thu, 24 Sep 2009 21:52:47 +0000 http://blog.dynatrace.com/?p=932#comment-6330 [...] The problem with SLA monitoring in virtualized environments … [...] [...] The problem with SLA monitoring in virtualized environments … [...]

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