RFC: JWarmup precompile java hot methods at application startup

[yumin qi]

Hi,

  Apart from comments from compiler professionals can I have comments from
runtime either? The changes mostly land in runtime area.

Thanks
Yumin

On Tue, Apr 16, 2019 at 11:27 AM yumin qi <yumin.qi at gmail.com> wrote:

> HI,
>
>   Did anyone have comments for this version?
>
> Thanks
> Yumin
>
> On Tue, Apr 9, 2019 at 10:36 AM yumin qi <yumin.qi at gmail.com> wrote:
>
>> Alan,
>>   Thanks! Updated in same link:
>>   http://cr.openjdk.java.net/~minqi/8220692/webrev-02/
>>
>>   Removed non-boot loader branch in nativeLookup.cpp.
>>   Added jdk.jwarmup to boot loader list in make/common/Modules.gmk.
>>   Tested again to make sure the new changes.
>>
>>   Thanks
>>   Yumin
>>
>>
>> On Tue, Apr 9, 2019 at 4:48 AM Alan Bateman <Alan.Bateman at oracle.com>
>> wrote:
>>
>>> On 09/04/2019 07:10, yumin qi wrote:
>>> >
>>> >   Now the registerNatives is found when it looks up for native entry
>>> > in lookupNative.cpp. I thought the class JWarmUp will be loaded by
>>> > boot loader like Unsafe or WhiteBox, but I was wrong, it is loaded by
>>> > app class loader so logic for obtaining its native entry put in both
>>> > cases, boot loader and non boot loaders.
>>> >
>>> make/common/Modules.gmk is where BOOT_MODULES is defined with the list
>>> of modules mapped to the boot loader.
>>>
>>> -Alan
>>>
>>