RFC: JWarmup precompile java hot methods at application startup

[李三红(三红)]

HI Alan,
Thanks for comment.   We can put com.alibaba.jwarmup in separate new module.
Any further suggestion for the package name?  
Or anyone can give us some options for considering:-)

Thanks!
Sanhong
-----邮件原件-----
发件人: hotspot-dev [mailto:hotspot-dev-bounces at openjdk.java.net] 代表 Alan Bateman
发送时间: 2019年3月15日 15:30
收件人: yumin qi <yumin.qi at gmail.com>; hotspot-dev at openjdk.java.net
主题: Re: RFC: JWarmup precompile java hot methods at application startup

On 15/03/2019 05:59, yumin qi wrote:
> Please review the patch for implementing JEP 8203832:
> (*https://bugs.openjdk.java.net/browse/JDK-8203832
> <https://bugs.openjdk.java.net/browse/JDK-8203832>)*
>
> Bug: *https://bugs.openjdk.java.net/browse/JDK-8220692
> <https://bugs.openjdk.java.net/browse/JDK-8220692>*
> Webrev: http://cr.openjdk.java.net/~minqi/8220692/webrev-01/
> <http://cr.openjdk.java.net/~minqi/8203832/webrev-01/>
>
> Summary: This patch implements the first version of JIT warmup to 
> solve the java application peak time CPU contest between JIT compiler 
> threads and regular application java threads. The CPU contest isa 
> avoided by pre-run to collect comilation data and precompile the hot 
> java methods during application startup based on the pre-run collected 
> data.
>
com.alibaba.jwarmup will need to find a new home, it cannot be exported by java.base. I think you'll need to look at create a new module for this API if it's really needed, it will need a better package name too.

-Alan.