{"id":8407,"date":"2021-10-29T08:30:07","date_gmt":"2021-10-29T12:30:07","guid":{"rendered":"https:\/\/www.redline13.com\/blog\/?p=8407"},"modified":"2022-01-06T07:09:36","modified_gmt":"2022-01-06T12:09:36","slug":"ycrash-answers-performance-testing-questions","status":"publish","type":"post","link":"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/","title":{"rendered":"yCrash Answers Performance Testing Questions – A Complement to RedLine13"},"content":{"rendered":"

Performance engineers know how to run the load testing which is used to determine when a system is ready for production.\u00a0 When the system doesn\u2019t handle the load, someone needs to determine why.\u00a0\u00a0 yCrash answers performance testing questions: Why did the CPU spike up?\u00a0 Why is memory degraded?\u00a0 Why is response time increased?\"yCrash<\/a><\/p>\n

RedLine13 and yCrash<\/a> partnered together as valuable tools that complement each other.\u00a0 RedLine13 handles the generation of load data and collection of test results.\u00a0 As a performance testing platform, the metrics RedLine13 collects are at the network and system level.\u00a0 yCrash captures more stratified analytics reaching to the application level \u2013 with examples including garbage collection logs, thread dumps, and heap dumps.\u00a0 It also analyzes network statistics, and gathers several more artifacts from the application.\u00a0 yCrash automatically captures and analyzes these data points to instantly identify the root cause of potential problems.\u00a0 In other words, yCrash answers performance testing questions by drawing high-level conclusions from low-level granular data.<\/p>\n

To demonstrate the complementary utility, the folks at yCrash ran a load test powered by RedLine13.\u00a0 In the yCrash post<\/a>, they compiled the results and analysis.\u00a0 You can read about the environment setup and JMeter test plan<\/a> details in their post.<\/p>\n

You can also read the RedLine13 report below which shows you information about the load test and how it complements the yCrash results.<\/p>\n

<\/a>RedLine13 Results<\/h3>\n

The actual results of this example are publicly available, and we have shared these results here<\/a>.\u00a0 Within the RedLine13 results we can see that load agent CPU utilization was pegged at 100% for nearly the entire test duration:<\/p>\n

\"CPU
CPU utilization profile for the example test.<\/figcaption><\/figure>\n

While it appears the test was still able to generate sufficient load for the test, the maximal load for that agent size was likely somewhat limited.\u00a0 As a general recommendation, we advise that load agent CPU utilization be kept below 100% at all times, with an ideal safe target around 70%-80% maximum sustained.<\/p>\n

This finding in particular is mirrored in the yCrash report, where we see peak average CPU utilization approaching 100%. What isn\u2019t immediately apparent are the memory inefficiencies which yCrash also reflects. This is elucidated in plain language and show in the following \u201cMemory wasted\u201d graphical breakdown:<\/p>\n

\"Memory
Memory wasted analysis with breakdown as reported by yCrash.<\/figcaption><\/figure>\n

Incidentally you may also notice that in this particular load test there are a relatively large number of errors indicating “Embedded resource download error…<\/em><\/strong>“.\u00a0 This is another example of how RedLine13 complements yCrash to provide a more comprehensive evaluation of your test.\u00a0 In this case, the majority of these errors are simply the result of the test being configured to download all linked resources at the endpoint web page.\u00a0 In this case it does not seem to affect the overall test, however it ends up with a greater number of reported errors at the end of the test. It is worth mentioning, as if you encounter this it can be prevented by modifying the test plan and deselecting the “Retrieve All Embedded Resources<\/em>” option on the “HTTP Request Defaults<\/em>” config element:<\/p>\n

\"HTTP
HTTP request settings as configured in JMeter.\u00a0 Note the \u201cRetrieve All Embedded Resources\u201d option.<\/figcaption><\/figure>\n

Conclusion<\/h3>\n

We have shown how yCrash<\/a> elegantly complements RedLine13 test results to provide deeper dimensions of analysis to your load tests.\u00a0 The examples we described here in our sample test illustrate a few of the many ways these companion products can provide greater insight in deriving meaning from load test results.<\/p>\n

\n

Did you know that you can test drive RedLine13 with our free trial? Sign up<\/a> and start testing today!<\/p>\n","protected":false},"excerpt":{"rendered":"

Performance engineers know how to run the load testing which is used to determine when a system is ready for production.\u00a0 When the system doesn\u2019t handle the load, someone needs to determine why.\u00a0\u00a0 yCrash answers performance testing questions: Why did the CPU spike up?\u00a0 Why is memory degraded?\u00a0 Why is response time increased? RedLine13 and yCrash partnered together as valuable tools that complement each other.\u00a0 RedLine13 handles the generation of load data and collection of testRead More →<\/a><\/p>\n","protected":false},"author":7,"featured_media":8423,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[283,389,394,424,555],"class_list":{"0":"entry","1":"post","2":"publish","3":"author-cbaeckstrom","4":"post-8407","6":"format-standard","7":"has-post-thumbnail","8":"category-blog","9":"post_tag-jmeter","10":"post_tag-performance-analysis","11":"post_tag-performance-testing","12":"post_tag-redline13","13":"post_tag-ycrash"},"yoast_head":"\nyCrash Answers Performance Testing Questions - a RedLine13 Complement<\/title>\n<meta name=\"description\" content=\"yCrash answers performance testing questions - a perfect complement to RedLine13. We partnered with yCrash to run a load test and analyze the results.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"yCrash Answers Performance Testing Questions - a RedLine13 Complement\" \/>\n<meta property=\"og:description\" content=\"yCrash answers performance testing questions - a perfect complement to RedLine13. We partnered with yCrash to run a load test and analyze the results.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/\" \/>\n<meta property=\"og:site_name\" content=\"RedLine13\" \/>\n<meta property=\"article:published_time\" content=\"2021-10-29T12:30:07+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-01-06T12:09:36+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.redline13.com\/blog\/wp-content\/uploads\/2021\/10\/yCrash_plus_RL13-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"400\" \/>\n\t<meta property=\"og:image:height\" content=\"300\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Chris Baeckstrom\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Chris Baeckstrom\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/\"},\"author\":{\"name\":\"Chris Baeckstrom\",\"@id\":\"https:\/\/www.redline13.com\/blog\/#\/schema\/person\/969c3ed71bfb140abd38d17818cd9773\"},\"headline\":\"yCrash Answers Performance Testing Questions – A Complement to RedLine13\",\"datePublished\":\"2021-10-29T12:30:07+00:00\",\"dateModified\":\"2022-01-06T12:09:36+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/\"},\"wordCount\":624,\"publisher\":{\"@id\":\"https:\/\/www.redline13.com\/blog\/#organization\"},\"keywords\":[\"JMeter\",\"performance analysis\",\"performance testing\",\"RedLine13\",\"yCrash\"],\"articleSection\":[\"Blog\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/\",\"url\":\"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/\",\"name\":\"yCrash Answers Performance Testing Questions - a RedLine13 Complement\",\"isPartOf\":{\"@id\":\"https:\/\/www.redline13.com\/blog\/#website\"},\"datePublished\":\"2021-10-29T12:30:07+00:00\",\"dateModified\":\"2022-01-06T12:09:36+00:00\",\"description\":\"yCrash answers performance testing questions - a perfect complement to RedLine13. We partnered with yCrash to run a load test and analyze the results.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.redline13.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"yCrash Answers Performance Testing Questions – A Complement to RedLine13\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.redline13.com\/blog\/#website\",\"url\":\"https:\/\/www.redline13.com\/blog\/\",\"name\":\"RedLine13\",\"description\":\"(Almost) Free Load Testing in the Cloud\",\"publisher\":{\"@id\":\"https:\/\/www.redline13.com\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.redline13.com\/blog\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.redline13.com\/blog\/#organization\",\"name\":\"RedLine13\",\"url\":\"https:\/\/www.redline13.com\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.redline13.com\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.redline13.com\/blog\/wp-content\/uploads\/2013\/06\/cropped-rl13-header-logo.jpg\",\"contentUrl\":\"https:\/\/www.redline13.com\/blog\/wp-content\/uploads\/2013\/06\/cropped-rl13-header-logo.jpg\",\"width\":300,\"height\":68,\"caption\":\"RedLine13\"},\"image\":{\"@id\":\"https:\/\/www.redline13.com\/blog\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.redline13.com\/blog\/#\/schema\/person\/969c3ed71bfb140abd38d17818cd9773\",\"name\":\"Chris Baeckstrom\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.redline13.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/776ba47b4b25ab883054c8fee0241158a549c6217bc321ab4027256ec71ce93a?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/776ba47b4b25ab883054c8fee0241158a549c6217bc321ab4027256ec71ce93a?s=96&d=mm&r=g\",\"caption\":\"Chris Baeckstrom\"},\"url\":\"https:\/\/www.redline13.com\/blog\/author\/cbaeckstrom\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"yCrash Answers Performance Testing Questions - a RedLine13 Complement","description":"yCrash answers performance testing questions - a perfect complement to RedLine13. We partnered with yCrash to run a load test and analyze the results.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/","og_locale":"en_US","og_type":"article","og_title":"yCrash Answers Performance Testing Questions - a RedLine13 Complement","og_description":"yCrash answers performance testing questions - a perfect complement to RedLine13. We partnered with yCrash to run a load test and analyze the results.","og_url":"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/","og_site_name":"RedLine13","article_published_time":"2021-10-29T12:30:07+00:00","article_modified_time":"2022-01-06T12:09:36+00:00","og_image":[{"width":400,"height":300,"url":"https:\/\/www.redline13.com\/blog\/wp-content\/uploads\/2021\/10\/yCrash_plus_RL13-1.png","type":"image\/png"}],"author":"Chris Baeckstrom","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Chris Baeckstrom","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/#article","isPartOf":{"@id":"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/"},"author":{"name":"Chris Baeckstrom","@id":"https:\/\/www.redline13.com\/blog\/#\/schema\/person\/969c3ed71bfb140abd38d17818cd9773"},"headline":"yCrash Answers Performance Testing Questions – A Complement to RedLine13","datePublished":"2021-10-29T12:30:07+00:00","dateModified":"2022-01-06T12:09:36+00:00","mainEntityOfPage":{"@id":"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/"},"wordCount":624,"publisher":{"@id":"https:\/\/www.redline13.com\/blog\/#organization"},"keywords":["JMeter","performance analysis","performance testing","RedLine13","yCrash"],"articleSection":["Blog"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/","url":"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/","name":"yCrash Answers Performance Testing Questions - a RedLine13 Complement","isPartOf":{"@id":"https:\/\/www.redline13.com\/blog\/#website"},"datePublished":"2021-10-29T12:30:07+00:00","dateModified":"2022-01-06T12:09:36+00:00","description":"yCrash answers performance testing questions - a perfect complement to RedLine13. We partnered with yCrash to run a load test and analyze the results.","breadcrumb":{"@id":"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.redline13.com\/blog\/2021\/10\/ycrash-answers-performance-testing-questions\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.redline13.com\/blog\/"},{"@type":"ListItem","position":2,"name":"yCrash Answers Performance Testing Questions – A Complement to RedLine13"}]},{"@type":"WebSite","@id":"https:\/\/www.redline13.com\/blog\/#website","url":"https:\/\/www.redline13.com\/blog\/","name":"RedLine13","description":"(Almost) Free Load Testing in the Cloud","publisher":{"@id":"https:\/\/www.redline13.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.redline13.com\/blog\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.redline13.com\/blog\/#organization","name":"RedLine13","url":"https:\/\/www.redline13.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.redline13.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.redline13.com\/blog\/wp-content\/uploads\/2013\/06\/cropped-rl13-header-logo.jpg","contentUrl":"https:\/\/www.redline13.com\/blog\/wp-content\/uploads\/2013\/06\/cropped-rl13-header-logo.jpg","width":300,"height":68,"caption":"RedLine13"},"image":{"@id":"https:\/\/www.redline13.com\/blog\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.redline13.com\/blog\/#\/schema\/person\/969c3ed71bfb140abd38d17818cd9773","name":"Chris Baeckstrom","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.redline13.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/776ba47b4b25ab883054c8fee0241158a549c6217bc321ab4027256ec71ce93a?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/776ba47b4b25ab883054c8fee0241158a549c6217bc321ab4027256ec71ce93a?s=96&d=mm&r=g","caption":"Chris Baeckstrom"},"url":"https:\/\/www.redline13.com\/blog\/author\/cbaeckstrom\/"}]}},"_links":{"self":[{"href":"https:\/\/www.redline13.com\/blog\/wp-json\/wp\/v2\/posts\/8407","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.redline13.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.redline13.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.redline13.com\/blog\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.redline13.com\/blog\/wp-json\/wp\/v2\/comments?post=8407"}],"version-history":[{"count":1,"href":"https:\/\/www.redline13.com\/blog\/wp-json\/wp\/v2\/posts\/8407\/revisions"}],"predecessor-version":[{"id":8802,"href":"https:\/\/www.redline13.com\/blog\/wp-json\/wp\/v2\/posts\/8407\/revisions\/8802"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.redline13.com\/blog\/wp-json\/wp\/v2\/media\/8423"}],"wp:attachment":[{"href":"https:\/\/www.redline13.com\/blog\/wp-json\/wp\/v2\/media?parent=8407"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.redline13.com\/blog\/wp-json\/wp\/v2\/categories?post=8407"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.redline13.com\/blog\/wp-json\/wp\/v2\/tags?post=8407"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}