RFR 8191989: TLAB Refills for Sparc

[JC Beyler]

Hi Thomas,

I did the same change for sparc here (compared to x86):
http://cr.openjdk.java.net/~rasbold/8191989/webrev.03/

Let me know what you think,
Jc

On Thu, Dec 7, 2017 at 9:52 PM, JC Beyler <jcbeyler at google.com> wrote:
> Hi Thomas,
>
> I fixed it here:
> http://cr.openjdk.java.net/~rasbold/8191989/webrev.02/
>
> Let me know if it is better, I did the same for x86.
>
> Thanks!
> Jc
>
> On Tue, Dec 5, 2017 at 3:08 AM, Thomas Schatzl <thomas.schatzl at oracle.com>
> wrote:
>>
>> Hi,
>>
>> On Thu, 2017-11-30 at 16:58 -0800, JC Beyler wrote:
>> > Hi all,
>> >
>> > The TLAB and the inline contiguous allocations handling are different
>> > for
>> > each architecture. On certain architectures, TLAB is never actually
>> > never
>> > refilled (ref:  https://bugs.openjdk.java.net/browse/JDK-8190862).
>> >
>> > The idea behind the implementation for Sparc is to do two things:
>> >   - separate TLAB usage to contiguous allocations in eden space.
>> >   - remove the code that augments the TLAB waste limit since that is
>> > already done in the common code slow path
>> >
>> > Bug: https://bugs.openjdk.java.net/browse/JDK-8191989
>> > WebRev: *http://cr.openjdk.java.net/~rasbold/8191989/webrev.01/
>> > <http://cr.openjdk.java.net/~rasbold/8191989/webrev.01/>*
>> >
>> > Does anyone see any issues with this webrev?
>>
>>   same comment as the x86 change, otherwise looks good.
>>
>> Thanks,
>>   Thomas
>
>