It seems a lot is needed for running a simple ruby script with 1.9
while much less is required by 1.8.
Charles Nutter has talked recently about some tips to speed jruby
startup time. One of them is "export JAVA_OPTS='-d32'", but I get this
on Linux:
Running a 32-bit JVM is not supported on this platform.
Is there any other tip that I could use for a 64-bit JVM on Linux to
speed up the startup time?
Thanks, Rodrigo.
On 07-01-2011 23:29, Hirotsugu Asari wrote:
Below, you see that thread.jar, rbconfig, rubygems and generator_internal add
up to the startup cost.
[system]:~ $ time jruby -J-Djruby.debug.loadService.timing=true --1.9 -e 'p 1'
-> thread.jar
<- thread.jar - 9ms
-> rbconfig
<- rbconfig - 204ms
-> rubygems/defaults/operating_system
<- rubygems/defaults/operating_system - 14ms
-> enumerator
-> generator_internal
-> thread
<- thread - 0ms
<- generator_internal - 188ms
<- enumerator - 227ms
1
real 0m2.244s
user 0m1.574s
sys 0m0.174s
[system]:~ $ time jruby -J-Djruby.debug.loadService.timing=true -e 'p 1'
-> enumerator
<- enumerator - 11ms
1
real 0m1.072s
user 0m0.646s
sys 0m0.108s
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