[15] RFR 8245961: Shenandoah: move some root marking to concurrent phase

[Zhengyu Gu]

On 6/2/20 5:49 AM, Aleksey Shipilev wrote:
> On 6/1/20 8:23 PM, Zhengyu Gu wrote:
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8245961
>> Webrev: http://cr.openjdk.java.net/~zgu/JDK-8245961/webrev.00/
> 
> Let me push 8246097 and 8246100 before this, so we would have the backport base.
Sure.

> 
> Mostly stylistic nits follow:
> 
> *) Does it make sense to move ShenandoahConcurrentRootsIterator to shenandoahRootProcessor? And do
> something like ShenandoahConcurrentRootScanner?

Okay.

> 
> *) conc_mark_roots can be just "  Concurrent Roots", no need to duplicate "Concurrent Mark":
> 
>    70   f(conc_mark,                                      "Concurrent Marking")              \
>    71   f(conc_mark_roots,                                "  Concurrent Mark Roots ")        \
>    72   SHENANDOAH_PAR_PHASE_DO(conc_mark_roots,          "    CM: ", f)                     \
> 

Fixed
> *) Typo: "Concurrnet":
> 
>   145   f(full_gc_scan_conc_roots,                        "  Scan Concurrnet Roots")         \
> 
Fixed.

http://cr.openjdk.java.net/~zgu/JDK-8245961/webrev.01/index.html


Thanks,

-Zhengyu
>