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branaway / Japid

A Java-based statically-typed fast template engine that can be used in any Java code. It has special adapter for use with the Play! Framework.
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research how some JVM arguments would help performance #24

Open branaway opened 13 years ago

branaway commented 13 years ago

http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html

some interesting ones:

-XX:+UseCompressedStrings Use a byte[] for Strings which can be represented as pure ASCII. (Introduced in Java 6 Update 21 Performance Release)

-XX:+OptimizeStringConcat Optimize String concatenation operations where possible. (Introduced in Java 6 Update 20)

-XX:+UseStringCache Enables caching of commonly allocated strings.

tunggad commented 13 years ago

oh my god, i love your fanatical devotion to performance! Keep up pls.

But these options are not common to all JVMs, only available on HotSpot right? As JRockit is now free too, i will do some research for JRockit and post it here.

DarkDimius commented 12 years ago

FYI OptimizeStringConcat is bugged and can lead to jvm oops see http://www.lucidimagination.com/blog/2011/07/28/dont-use-java-7-for-anything/

branaway commented 12 years ago

thanks for reminding

2012/5/28 DarkDimius < reply@reply.github.com

FYI OptimizeStringConcat is bugged and can lead to jvm oops see http://www.lucidimagination.com/blog/2011/07/28/dont-use-java-7-for-anything/

Reply to this email directly or view it on GitHub: https://github.com/branaway/Japid/issues/24#issuecomment-5960610