Created
May 11, 2011 15:46
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jruby hacks
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| #jruby hacks | |
| jps -ml #show java processes running | |
| jstack <pid> #get a jvm stack info | |
| jruby -J-Djruby.reify.classes=true # a flag that tell jruby to compile ruby classes to real (matching) java classes | |
| jvisualvm #great profiling tool | |
| ab -n 1000 -c 10 http://localhost:3000 #apache bench command to load up a server | |
| jruby -S warble executable compile war # creating executable war | |
| java -jar myapp.war #run the executable war | |
| java -jar myapp.war --help | |
| # hotline [email protected] | |
| #jruby -S rails new myapp --template http://jruby.org | |
| #produce a heap dump on running tomcat | |
| jmap -dump:live,format=b,file=heap.bin <pid> |
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