I just stumbled on this as well, and spent some time learning how to generate a call graph (the normal results of cProfile is not terribly informative). Future reference, here’s another way to generate a beautiful call-tree graphic with cProfile + gprof2dot + graphViz. ——————— Install GraphViz: http://www.graphviz.org/Download_macos.php easy_install gprof2dot Run profile on the code. … Read more
(I would have added this as a comment to @ron’s answer, but my reputation is still not high enough that I can comment ;)). Since July 2011, you can in fact get traceview and VMDebug to give you wall clock time as well as cpu usage time, thanks to a code change by Jeff Brown. … Read more
This is the quickest possible way: export MAVEN_OPTS=”-Dorg.slf4j.simpleLogger.dateTimeFormat=HH:mm:ss,SSS \ -Dorg.slf4j.simpleLogger.showDateTime=true” mvn test Results in MAVEN_OPTS=”-Dorg.slf4j.simpleLogger.dateTimeFormat=HH:mm:ss,SSS -Dorg.slf4j.simpleLogger.showDateTime=true” mvn test 17:06:07,330 [INFO] Scanning for projects… 17:06:07,447 [INFO] 17:06:07,447 [INFO] ———————————————————————— 17:06:07,448 [INFO] Building bimble-server 0.0.1-SNAPSHOT 17:06:07,448 [INFO] ———————————————————————— 17:06:07,747 [INFO] 17:06:07,748 [INFO] — maven-resources-plugin:2.6:resources (default-resources) @ bimble-server — If you then add that environment variable to your … Read more
Just to actually add an answer: As Ren stated in his comment, he filed a ticket, as this is related to a bug.
As Carl suggested, you should check code for space leaks. I’ll assume that your program really requires a lot of memory for good reason. The program spent 2820.18s doing major GC. You can lower it by reducing either memory usage (not a case by the assumption) or number of major collections. You have a lot … Read more
How do I see what inside the function is making the code take so long (Should I even use cProfile?) Yes, you can use cProfile but the way you asked the question makes me wonder if line_profiler (third party module, you need to install it) wouldn’t be a better tool. I’m using the IPython/Jupyter bindings … Read more
For machine instruction profiling use valgrind’s callgrind (also, cachegrind can do cache and branch prediction profiling which is quite nice). For time measurements use google’s cpu profiler, it gives way better results than gprof. You can set sampling frequency and it can show the output as a nice annotated call graph.
See this bug report – VISUALVM-637 Solution: start JVisualVM using below command : jvisualvm.exe -J-Dorg.netbeans.profiler.separateConsole=true I’ve checked this (and it works !) at Windows 10 X64 with java version “1.8.0_102”
I found VisualVM (see here and here) to be very convenient. Its use with Clojure has been described about a year ago in this blog post; as far as I can see, it’s not outdated in any way. Note that the GUI from which one starts the VisualVM profiler has a prominent text area where … Read more