RFR (M): 8227434: G1 predictions may over/underflow with high variance input
thomas.schatzl at oracle.com
Fri Nov 22 09:21:59 UTC 2019
ping for second review.
On 21.11.19 15:26, Stefan Johansson wrote:
> Hi Thomas,
> On 2019-11-12 15:10, Thomas Schatzl wrote:
>> Hi all,
>> can I have reviews for this change that tries to fix possible
>> underflows and overflows in our predictor use in case there is high
>> variance input?
>> I did not analyze for every case whether the issue actually happened,
>> but changed the get_new_prediction() calls to something I believe is
>> appropriate for the given sequence. Cases where there has already been
>> some clamping going on were obvious of course.
>> It's a bit boring to review...
> Looks good in general, me and Thomas discussed some naming suggestions
> offline, but we are going to do that as a separate RFE. See JDK-8234574.
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