{"id":2189,"date":"2022-08-30T15:22:47","date_gmt":"2022-08-30T15:22:47","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2014\/01\/04\/problem-about-jprofiler-collection-of-common-programming-errors\/"},"modified":"2022-08-30T15:22:47","modified_gmt":"2022-08-30T15:22:47","slug":"problem-about-jprofiler-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2022\/08\/30\/problem-about-jprofiler-collection-of-common-programming-errors\/","title":{"rendered":"problem about jprofiler-Collection of common programming errors"},"content":{"rendered":"<ul>\n<li>\n<img decoding=\"async\" src=\"http:\/\/i.stack.imgur.com\/21IXR.jpg?s=32&amp;g=1\" \/><br \/>\nasok Buzz<br \/>\nrest profiling jprofiler<br \/>\nI&#8217;ve a RESTful server and it crashes pretty often. So, I&#8217;m profiling it to check what processes are consuming most of CPU. After quite a time of profiling, I find org.restlet.engine.http.connector.BaseHelper.isWorkingServiceFull has maximum CPU usage on Runnable thread.Is there any way to enhance the performance? When I change Thread Status to &#8216;All State&#8217; form &#8216;Runnable&#8217; java.net.ServerSocket.accept(50%) and java.lang.Thread.sleep(49%) has the maximum CPU usage. What does the sleeping thread and<\/li>\n<li>\n<img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/9e7a8b29723c6d38e1b1a1f245c27b4c?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nTrenton<br \/>\njava performance jprofiler yourkit<br \/>\nWhich profiler is better for general purpose profiling and heap analysis? 90% of our apps are standalone command line programs with substantial database and numeric processing. The other 10% are webapps\/servlet container apps (with very little JSP and NO SCRIPLETS!). Target user would be Sr Software Engineer with 5-10 years of industry experience. We need support only for Sun JDK 5 and.As of writing this question (2008-10-02), JProfiler was at 5.1.4 and YourKit was 7.5. Looks like YourKit 8.0 wi<\/li>\n<li>\n<img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/6af6c4c44575775210dca60bcc8eec47?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nAndy<br \/>\njprofiler<br \/>\nI use jprofiler 7.2.2, app server (JBoss) is running java 1.6.0_30. The same user is used to start JBoss and JProfiler.I execute jpenable, choose offline mode, provide my setting file and then process fails with two different errors:Using the single session in the config file. ERROR: Attaching is not supported: Unable to open socket file: target process not responding or HotSpot VM not loaded com.sun.tools.attach.AttachNotSupportedException: Unable to open socket file: target process not respon<\/li>\n<li>\n<img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/51d44174b0768f7703925d969ca149df?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nHo\u00e0ng Long<br \/>\njava linux jvm profiling jprofiler<br \/>\nI just downloaded and installed a trial JProfiler version from jprofiler_linux_7_0_1.sh. The strange fact is that there&#8217;s no prompt for inputting license information in the installing process. But everything seems to be fine, until I try to run the profiler:# sh .\/bin\/jprofiler -c(The -c is to run jprofiler in console. I have read somewhere on Internet, but not sure that&#8217;s true. Anyway, the result is still the same.)Here&#8217;s the results I get:Exception in thread &#8220;main&#8221; java.lang.UnsatisfiedLinkErr<\/li>\n<li>\n<img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/9ef3cab35f78f70c8d821ab0be835714?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nvikiiii<br \/>\njava jprofiler<br \/>\nI want to configure web application to JProfiler 7.1.2. Below are details which I carried out while configuring the session. Web Server: Tomcat 5.0 Operating System: Windows XPWe have selected session type as &#8220;Web Start&#8221;. In Web Start settings section, How to select URL of JNLP file? (we could not find out JNLP file). Also we have selected Java VM as a &#8220;Oracle JRE 1.6.0_22&#8221;. We have configured Class Path. After clicking OK after some time it shows application error as &#8220;Unable to launch applica<\/li>\n<li>\n<img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/5ddfd9fbd9f21ef824a8425a649ff5a2?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nYogesh_D<br \/>\njava profiling jprofiler<br \/>\nI am using JProfiler jprofiler6_2_4 64 bit. Had used the Zip file for the Jprofiler. Have a Weblogic 10.2 Server, that is running on HotSpot JVm 1.6.0_24 32 Bit JVM on win 7 64 bit.Have added the jprofilerti.dll included in the windows(the 32 bit one) in the JVM startup. The Server and application starts up fine. However as soon as i start any activity from the application the JVM crashes.I have been getting &#8220;JProfiler&gt; ERROR unknown frame type in StackMapTable attribute&#8221; while my application st<\/li>\n<\/ul>\n<p id=\"rop\"><small>Originally posted 2014-01-04 02:58:29. <\/small><\/p>","protected":false},"excerpt":{"rendered":"<p>asok Buzz rest profiling jprofiler I&#8217;ve a RESTful server and it crashes pretty often. So, I&#8217;m profiling it to check what processes are consuming most of CPU. After quite a time of profiling, I find org.restlet.engine.http.connector.BaseHelper.isWorkingServiceFull has maximum CPU usage on Runnable thread.Is there any way to enhance the performance? When I change Thread Status [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2189","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/2189","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=2189"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/2189\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=2189"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=2189"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=2189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}