Hi, I wrote a blog post on generating Java CPU Flame Graphs with linux perf [1]. With these flame graphs, we can see system code paths in addition to java code paths.
Thanks! Best Regards, [1] http://isuru-perera.blogspot.com/2015/07/java-cpu-flame-graphs.html <http://bit.ly/1MHz3YC> On Tue, Jun 9, 2015 at 10:49 AM, Srinath Perera <[email protected]> wrote: > thanks and ack! > > On Mon, Jun 1, 2015 at 5:32 PM, Isuru Perera <[email protected]> wrote: > >> Hi Srinath, >> >> Flame Graphs help us to identify hot methods from sampled stack traces. >> There are examples to generate Java Flame Graphs from jstack and Google's >> lightweight-java-profiler. >> >> Since we primarily use Java Flight Recorder in development, I wrote a >> simple Java program to read a Java Flight Recording and create a Flame >> Graph compatible output [1]. I also wrote a blog post [2]. >> >> I hope this Java program will help us in our performance testing. >> >> I have started looking in to other tools and I will update this thread >> later. >> >> Thanks! >> >> Best Regards, >> >> [1] https://github.com/chrishantha/jfr-flame-graph >> [2] >> http://isuru-perera.blogspot.com/2015/05/flame-graphs-with-java-flight-recordings.html >> >> On Thu, Apr 9, 2015 at 8:29 AM, Srinath Perera <[email protected]> wrote: >> >>> Hi Isuru, >>> >>> As per our chat yesterday, please look at the $subject. Idea is not to >>> intergate those tools, but document and know them so we can use them >>> internally for debugging etc. >>> >>> Lets start with Flame Graphs >>> http://www.brendangregg.com/blog/2014-06-12/java-flame-graphs.html >>> >>> Others could be >>> >>> >>> http://dtrace.org/blogs/brendan/2013/06/08/linux-performance-analysis-and-tools/ >>> >>> http://www.brendangregg.com/blog/2015-03-03/performance-tuning-linux-instances-on-ec2.html >>> >>> Keep this thread updated. >>> >>> --Srinath >>> >>> -- >>> ============================ >>> Blog: http://srinathsview.blogspot.com twitter:@srinath_perera >>> Site: http://people.apache.org/~hemapani/ >>> Photos: http://www.flickr.com/photos/hemapani/ >>> Phone: 0772360902 >>> >> >> >> >> -- >> Isuru Perera >> Associate Technical Lead | WSO2, Inc. | http://wso2.com/ >> Lean . Enterprise . Middleware >> >> about.me/chrishantha >> > > > > -- > ============================ > Blog: http://srinathsview.blogspot.com twitter:@srinath_perera > Site: http://people.apache.org/~hemapani/ > Photos: http://www.flickr.com/photos/hemapani/ > Phone: 0772360902 > -- Isuru Perera Associate Technical Lead | WSO2, Inc. | http://wso2.com/ Lean . Enterprise . Middleware about.me/chrishantha Contact: +IsuruPereraWSO2 <https://www.google.com/+IsuruPereraWSO2/about>
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