{"id":2433,"date":"2022-04-19T15:30:34","date_gmt":"2022-04-19T15:30:34","guid":{"rendered":"https:\/\/loadfocus.com\/blog\/?p=2433"},"modified":"2023-09-03T14:09:47","modified_gmt":"2023-09-03T14:09:47","slug":"what-is-cpu-utilization-in-performance-testing","status":"publish","type":"post","link":"https:\/\/loadfocus.com\/blog\/2022\/04\/what-is-cpu-utilization-in-performance-testing","title":{"rendered":"What is CPU Utilization in Performance Testing?"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\"><\/span> <span class=\"rt-time\"> &lt; 1<\/span> <span class=\"rt-label rt-postfix\">minute read<\/span><\/span>\n<p class=\"lead\"><strong>CPU<\/strong> or C<strong>entral Processing Unit<\/strong> is the brain of any computer and its main responsibility is processing all the tasks required by the running applications.<\/p>\n\n\n\n<p><strong>CPU Utilization<\/strong> is a key metric in performance testing which measures the percentage of time the CPU spends executing a task.<\/p>\n\n\n\n<p>One of the most crucial tasks to do when running a performance test is to monitor the resource utilization. There are four key areas to keep an eye on:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>CPU (Central Processing Unit)<\/li><li>Memory<\/li><li>Disk<\/li><li>Network<\/li><\/ul>\n\n\n\n<p>Actual CPU utilization may vary since certain tasks may require a heavier CPU time while others require less due to non-CPU resource requirements.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does CPU Usage Mean?<\/h2>\n\n\n\n<p>CPU percent utilization represents how much of the total CPU&#8217;s processing power is currently being utilized.<\/p>\n\n\n\n<p>The CPU usage may increase with running performance tests with a higher number of virtual concurrent users.<\/p>\n\n\n\n<p>There are requests that can be handled easily with the CPU usage between 1% and 5%, and other heavier requests with CPU utilization between 80%-100%.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><a href=\"https:\/\/loadfocus.com\"><img loading=\"lazy\" decoding=\"async\" width=\"870\" height=\"360\" src=\"https:\/\/loadfocus.com\/blog\/wp-content\/uploads\/sign-up.jpeg\" alt=\"\" class=\"wp-image-2301\" srcset=\"https:\/\/loadfocus.com\/blog\/wp-content\/uploads\/sign-up.jpeg 870w, https:\/\/loadfocus.com\/blog\/wp-content\/uploads\/sign-up-800x331.jpeg 800w, https:\/\/loadfocus.com\/blog\/wp-content\/uploads\/sign-up-600x248.jpeg 600w, https:\/\/loadfocus.com\/blog\/wp-content\/uploads\/sign-up-768x318.jpeg 768w\" sizes=\"auto, (max-width: 870px) 100vw, 870px\" \/><\/a><figcaption>Cloud Testing Platform for Websites and APIs.<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><em>Written by&nbsp;<a href=\"https:\/\/coursinator.com\/instructor\/bogdan-vazzolla\" target=\"_blank\" rel=\"noreferrer noopener\" class=\"broken_link\">Bogdan&nbsp;Vazzolla<\/a>.<\/em><\/p>\n\n\n\n<p><em><a href=\"https:\/\/loadfocus.com\/\">LoadFocus<\/a>&nbsp;is a cloud testing platform,&nbsp;a&nbsp;<a href=\"https:\/\/loadfocus.com\/load-testing\" target=\"_blank\" rel=\"noreferrer noopener\">load and stress testing tool<\/a>&nbsp;which provides the infrastructure to run tests with thousands of concurrent users, from&nbsp;<a href=\"https:\/\/loadfocus.com\/locations\">multiple cloud locations<\/a>, in less than a few minutes, keep history of the results, compare different runs to inspect performance improvements or performance degradation.<\/em>&nbsp;<em>It also supports running&nbsp;<a href=\"https:\/\/loadfocus.com\/jmeter-load-testing\" target=\"_blank\" rel=\"noreferrer noopener\">JMeter load tests from the cloud<\/a><\/em>&nbsp;and&nbsp;<a href=\"https:\/\/loadfocus.com\/page-speed-monitoring\">monitoring and audit web and mobile performance<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\"><\/span> <span class=\"rt-time\"> &lt; 1<\/span> <span class=\"rt-label rt-postfix\">minute read<\/span><\/span>CPU or Central Processing Unit is the brain of any computer and its main responsibility is processing all the tasks required by the running applications. CPU Utilization is a key metric in performance testing which measures the percentage of time the CPU spends executing a task. One of the most crucial tasks to do when&#8230;  <a href=\"https:\/\/loadfocus.com\/blog\/2022\/04\/what-is-cpu-utilization-in-performance-testing\" class=\"more-link\" title=\"Read What is CPU Utilization in Performance Testing?\">Read more &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":2435,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48],"tags":[389,390],"class_list":["post-2433","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-test-automation","tag-cpu-usage","tag-processor-usage"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/loadfocus.com\/blog\/wp-json\/wp\/v2\/posts\/2433","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/loadfocus.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/loadfocus.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/loadfocus.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/loadfocus.com\/blog\/wp-json\/wp\/v2\/comments?post=2433"}],"version-history":[{"count":1,"href":"https:\/\/loadfocus.com\/blog\/wp-json\/wp\/v2\/posts\/2433\/revisions"}],"predecessor-version":[{"id":2764,"href":"https:\/\/loadfocus.com\/blog\/wp-json\/wp\/v2\/posts\/2433\/revisions\/2764"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/loadfocus.com\/blog\/wp-json\/wp\/v2\/media\/2435"}],"wp:attachment":[{"href":"https:\/\/loadfocus.com\/blog\/wp-json\/wp\/v2\/media?parent=2433"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/loadfocus.com\/blog\/wp-json\/wp\/v2\/categories?post=2433"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/loadfocus.com\/blog\/wp-json\/wp\/v2\/tags?post=2433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}