{"id":2762,"date":"2017-01-02T18:33:56","date_gmt":"2017-01-02T16:33:56","guid":{"rendered":"https:\/\/voxxeddays.com\/bucharest\/?p=2762"},"modified":"2017-01-02T20:10:28","modified_gmt":"2017-01-02T18:10:28","slug":"heinz-labutz-fork","status":"publish","type":"post","link":"https:\/\/voxxeddays.com\/greece\/2017\/01\/02\/heinz-labutz-fork\/","title":{"rendered":"Turbo Charge CPU Utilization in Fork\/Join Using the ManagedBlocker"},"content":{"rendered":"<h2>Turbo Charge CPU Utilization in Fork\/Join Using the ManagedBlocker<\/h2>\n<p><img loading=\"lazy\" class=\"image-medalion-post alignright wp-image-1971\" src=\"http:\/\/incremental.community\/wp-content\/uploads\/2016\/12\/heinz-kabutz.png\" alt=\"Apache Zeppelin, the missing GUI for your Big Data back-end\" width=\"130\" height=\"130\" \/><\/p>\n<blockquote>\n<p class=\"p1\"><span class=\"s1\"><a href=\"\/\/twitter.com\/heinzkabutz\" target=\"_blank\"> Heinz Kabutz<\/a> writes the popular \u201cThe Java Specialists\u2019 Newsletter\u201d read by tens of thousands of enthusiastic fans in over 138 countries. To sign up, visit <a href=\"http:\/\/www.javaspecialists.eu\">http:\/\/www.javaspecialists.eu<\/a><\/span><\/p>\n<\/blockquote>\n<p class=\"p1\"><span class=\"s1\">Fork\/Join is a framework for parallelizing calculations using recursive decomposition, also called divide and conquer. These algorithms occasionally end up duplicating work, especially at the beginning of the run. We can reduce wasted CPU cycles by implementing a reserved caching scheme. Before a task starts its calculation, it tries to reserve an entry in the shared map. If it is successful, it immediately begins. If not, it blocks until the other thread has finished its calculation. Unfortunately this might result in a significant number of blocked threads, decreasing CPU utilization. In this talk we will demonstrate this issue and offer a solution in the form of the ManagedBlocker. Combined with the Fork\/Join, it can keep parallelism at the desired level.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Turbo Charge CPU Utilization in Fork\/Join Using the ManagedBlocker Heinz Kabutz writes the popular \u201cThe Java Specialists\u2019 Newsletter\u201d read by tens of thousands of enthusiastic fans in over 138 countries. To sign up, visit http:\/\/www.javaspecialists.eu Fork\/Join is a framework for parallelizing calculations using recursive decomposition, also called divide and conquer. These algorithms occasionally end up [&hellip;]<\/p>\n","protected":false},"author":7816,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Turbo Charge CPU Utilization in Fork\/Join Using the ManagedBlocker - Voxxed Days Greece<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/voxxeddays.com\/greece\/2017\/01\/02\/heinz-labutz-fork\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Turbo Charge CPU Utilization in Fork\/Join Using the ManagedBlocker - Voxxed Days Greece\" \/>\n<meta property=\"og:description\" content=\"Turbo Charge CPU Utilization in Fork\/Join Using the ManagedBlocker Heinz Kabutz writes the popular \u201cThe Java Specialists\u2019 Newsletter\u201d read by tens of thousands of enthusiastic fans in over 138 countries. To sign up, visit http:\/\/www.javaspecialists.eu Fork\/Join is a framework for parallelizing calculations using recursive decomposition, also called divide and conquer. These algorithms occasionally end up [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/voxxeddays.com\/greece\/2017\/01\/02\/heinz-labutz-fork\/\" \/>\n<meta property=\"og:site_name\" content=\"Voxxed Days Greece\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/voxxedbucharest\/\" \/>\n<meta property=\"article:published_time\" content=\"2017-01-02T16:33:56+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2017-01-02T18:10:28+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/incremental.community\/wp-content\/uploads\/2016\/12\/heinz-kabutz.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@VoxxedBucharest\" \/>\n<meta name=\"twitter:site\" content=\"@VoxxedBucharest\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\">\n\t<meta name=\"twitter:data1\" content=\"alexproca\">\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\">\n\t<meta name=\"twitter:data2\" content=\"1 minute\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/voxxeddays.com\/greece\/#website\",\"url\":\"https:\/\/voxxeddays.com\/greece\/\",\"name\":\"Voxxed Days Greece\",\"description\":\"Another Voxxed event\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/voxxeddays.com\/greece\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/voxxeddays.com\/greece\/2017\/01\/02\/heinz-labutz-fork\/#primaryimage\",\"inLanguage\":\"en-US\",\"url\":\"http:\/\/incremental.community\/wp-content\/uploads\/2016\/12\/heinz-kabutz.png\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/voxxeddays.com\/greece\/2017\/01\/02\/heinz-labutz-fork\/#webpage\",\"url\":\"https:\/\/voxxeddays.com\/greece\/2017\/01\/02\/heinz-labutz-fork\/\",\"name\":\"Turbo Charge CPU Utilization in Fork\/Join Using the ManagedBlocker - Voxxed Days Greece\",\"isPartOf\":{\"@id\":\"https:\/\/voxxeddays.com\/greece\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/voxxeddays.com\/greece\/2017\/01\/02\/heinz-labutz-fork\/#primaryimage\"},\"datePublished\":\"2017-01-02T16:33:56+00:00\",\"dateModified\":\"2017-01-02T18:10:28+00:00\",\"author\":{\"@id\":\"https:\/\/voxxeddays.com\/greece\/#\/schema\/person\/3610fff738a03b155237ab4707e803eb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/voxxeddays.com\/greece\/2017\/01\/02\/heinz-labutz-fork\/\"]}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/voxxeddays.com\/greece\/#\/schema\/person\/3610fff738a03b155237ab4707e803eb\",\"name\":\"alexproca\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/voxxeddays.com\/greece\/#personlogo\",\"inLanguage\":\"en-US\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/fb9bbcf4c88be28b95644b3697985fcb?s=96&d=mm&r=g\",\"caption\":\"alexproca\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","_links":{"self":[{"href":"https:\/\/voxxeddays.com\/greece\/wp-json\/wp\/v2\/posts\/2762"}],"collection":[{"href":"https:\/\/voxxeddays.com\/greece\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/voxxeddays.com\/greece\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/voxxeddays.com\/greece\/wp-json\/wp\/v2\/users\/7816"}],"replies":[{"embeddable":true,"href":"https:\/\/voxxeddays.com\/greece\/wp-json\/wp\/v2\/comments?post=2762"}],"version-history":[{"count":0,"href":"https:\/\/voxxeddays.com\/greece\/wp-json\/wp\/v2\/posts\/2762\/revisions"}],"wp:attachment":[{"href":"https:\/\/voxxeddays.com\/greece\/wp-json\/wp\/v2\/media?parent=2762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/voxxeddays.com\/greece\/wp-json\/wp\/v2\/categories?post=2762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/voxxeddays.com\/greece\/wp-json\/wp\/v2\/tags?post=2762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}