{"id":5712,"date":"2018-09-13T09:45:58","date_gmt":"2018-09-13T14:45:58","guid":{"rendered":"https:\/\/www.poweradmin.com\/blog\/?p=5712"},"modified":"2018-10-04T16:37:33","modified_gmt":"2018-10-04T21:37:33","slug":"counters-monitoring-cpu-usage","status":"publish","type":"post","link":"https:\/\/www.poweradmin.com\/blog\/counters-monitoring-cpu-usage\/","title":{"rendered":"Counters Monitoring CPU Usage"},"content":{"rendered":"

By Zo\u00eb Dunning<\/span><\/strong><\/span><\/p>\n

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This week\u2019s topic is monitoring CPU usage using the \u201c\\Processor Information(_Total)\\% Processor Time\u201d <\/strong>and \u201c\\Processor Information(_Total)\\% Processor Queue Length\u201d<\/strong> counters. <\/span><\/p>\n

Overview<\/span><\/h2>\n

\u201c\\Processor Information(_Total)\\% Processor Time\u201d<\/span><\/strong> shows the percentage of the time that the processor takes to execute a non-idle thread during a sample interval. In other words, this counter shows processor activity. % Processor Time is calculated by subtracting the percentage of time to execute an idle thread from 100%.<\/span><\/span><\/p>\n

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\u201c\\System\\% Processor Queue Length\u201d <\/span><\/strong>corresponds to the number of threads waiting to be processed by any CPU <\/span>(as opposed to Server Work Queue Length, which measures the threads waiting to be processed by a particular<\/em> CPU).<\/span><\/span><\/p>\n

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Dark blue<\/span>= % Processor Time<\/span>; Light blue<\/span><\/span><\/span>=\u00a0<\/span>%\u00a0Processor Queue Length<\/span><\/p>\n

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Potential Problems<\/span><\/h2>\n

Similar to the issues encountered with Current and Average Disk Queue Length, the processor\u2014like the disk queue and memory\u2014can become bottlenecked. A processor bottleneck occurs when threads require more processor time than is available.<\/span><\/p>\n

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% Processor Time won\u2019t necessarily be high if % Processor Queue Length is high. A consistently high rate of CPU usage for % Processor Time\u2014in the range of 80% to 90%\u2014could be a problem. Monitor each % Processor Time counter for each individual processor if you have a multiprocessor system.<\/span><\/p>\n

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However, if you have a SQL server that executes numerous calculations, 100% of the processor\u2019s time can be used without a bottleneck occurring. However, monitor this closely to catch if the performance of other applications and functions begin to suffer. <\/span><\/p>\n

Troubleshooting<\/span><\/h2>\n

If you notice a steadily high rate of CPU usage in the 80% to 90% range, you may need to upgrade your CPU. Install a faster processor if you have more than a couple of processes simultaneously trying to use processor time, resulting in a bottleneck. If you have a multiprocessor system, you can also add more processors.<\/span><\/p>\n

Conclusion<\/span><\/h2>\n

\u201c\\Processor Information(_Total)\\% Processor Time\u201d shows processor activity by displaying the percentage of the time that the processor takes to execute a non-idle thread. \u201c\\System\\% Processor Queue Length\u201d corresponds to the number of threads waiting to be processed by any CPU.<\/span><\/p>\n

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To avoid processor bottleneck, monitor your % Processor Time counter for unusually high rates of CPU usage. Typically, 80% to 90% of CPU usage is problematic unless you have a SQL server that can manage multiple calculations simultaneously. In that case, 100% of the processor time should be able to be used.<\/span><\/p>\n

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If you notice a steadily high rate of CPU usage in the 80% to 90% range, you may need to upgrade your CPU by installing a faster processor or adding a new one if you have a multiprocessor system.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

By Zo\u00eb Dunning \u00a0 This week\u2019s topic is monitoring CPU usage using the \u201c\\Processor Information(_Total)\\% Processor Time\u201d and \u201c\\Processor Information(_Total)\\% Processor Queue Length\u201d counters. Overview \u201c\\Processor Information(_Total)\\% Processor Time\u201d shows the percentage of the time that the processor takes to execute a non-idle thread during a sample interval. In other words, this counter shows processor […]<\/p>\n","protected":false},"author":15,"featured_media":5859,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,5,57,8],"tags":[63,65,52,59,72,68,56,67,69,64],"class_list":["post-5712","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general-it","category-how-to","category-monitoring","category-windows","tag-counters","tag-cpu","tag-how-to","tag-monitoring","tag-percent-processor-queue-length","tag-percent-processor-time","tag-performance-monitor","tag-processor","tag-processor-queue-length","tag-troubleshooting"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t