RFR(m): 8221734: Deoptimize with handshakes
patricio.chilano.mateo at oracle.com
Mon May 20 17:14:46 UTC 2019
Changes to biased locking look good! Thanks for the change.
@@ -1318,3 +1318,2 @@
oop obj = (objects_to_revoke->at(i))();
- markOop mark = obj->mark();
On 5/20/19 5:04 AM, Robbin Ehn wrote:
> Hi all, please see this update v4.
> I have fixed the simplification Patricio talked about and David's nit.
> The interesting part is now the full diff of bias locking cpp file:
> It's very clean.
> I have seen no issues in T1-7, KS and other assorted testing.
> Thanks, Robbin
> On 2019-04-25 14:05, Robbin Ehn wrote:
>> Hi all, please review.
>> Let's deopt with handshakes.
>> Removed VM op Deoptimize, instead we handshake.
>> Locks needs to be inflate since we are not in a safepoint.
>> Goes on top of:
>> Passes t1-7 and multiple t1-5 runs.
>> A few startup benchmark see a small speedup.
>> Thanks, Robbin
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