RFR: 8234863: Increase default value of MaxInlineLevel

[Claes Redestad]

Thanks for the review!

/Claes

On 2019-12-09 01:52, Vladimir Kozlov wrote:
> Nice finding! Good.
> 
> Thanks,
> Vladimir
> 
> On 12/8/19 1:44 PM, Claes Redestad wrote:
>> Hi,
>>
>> increasing MaxInlineLevel can substantially improve performance in some
>> benchmarks[1], and has been reported to help applications implemented in
>> scala in particular.
>>
>> There is always some risk of regressions when tweaking the default
>> inlining settings. I've done a number of experiments to ascertain that
>> the effect of increasing this on a wide array of benchmarks. With 15 all
>> benchmarks tested are show either neutral or positive results, with no
>> observed regression w.r.t. compilation speed or code cache usage.
>>
>> Webrev: http://cr.openjdk.java.net/~redestad/8234863/open.00/
>>
>> Thanks!
>>
>> /Claes
>>
>> [1] One http://renaissance.dev sub-benchmark improve by almost 3x with
>> an increase from 9 to 15.