UnSafe Sun package

[Pascal66]

Maybe the next part to clean ? Or keep for historical purpose ? With Unsafe : 966983290915691193309978723256242679920691599725908954700676674631843021151 (250 bits) = 2166660942804222727904664493239497749 * 446301159453293757389122758418041256099 (factored in 58s, 152ms) Without: 966983290915691193309978723256242679920691599725908954700676674631843021151 (250 bits) = 2166660942804222727904664493239497749 * 446301159453293757389122758418041256099 (factored in 57s, 519ms)

[TilmanNeumann]

A single test is no proof ;-) In my experience, the unsafe implementation has always been clearly faster. But of course, I have only been testing with a single and quite old computer.

Which Java version did you use, and which hardware?

[Pascal66]

# JMH version: 1.22
# VM version: JDK 1.8.0_212-release, OpenJDK 64-Bit Server VM, 25.212-b04
# VM options: -XX:-RestrictContended -XX:+AggressiveOpts -XX:NewSize=16m -XX:MaxTenuringThreshold=1 -XX:+UseParallelGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xms4g -Xmx4g

I use jdk 1.8 because the unsafe part usage isnt clear in future of java, and (for me and my old computer this give not so much improvment (~10% in not all case)

It's not a single test.. It's an example of the result of many tests. As the code is very very well optimized, i'm searching for the little part wich can do the same things of unsafe part.

[TilmanNeumann]

It's not a single test.. It's an example of the result of many tests. As the code is very very well optimized, i'm searching for the little part wich can do the same things of unsafe part.

Well done then, I'll keep it in mind. Thanks for your extensive tests. To m knowledge you are the first person who has embraced the capabilities of class FactorizerTest :-)