[11u] RFR (S) 8223444: Improve CodeHeap Free Space Management

[Schmidt, Lutz]

Hi Dmitry,

the changes look good to me. Thank you for bringing this one and the follow-up fix to jdk11. 

Please note that I'm not a reviewer for the jdk-updates project. But as author of the original change I dare to approve it. 

Regards,
Lutz

    -----Original Message-----
    From: jdk-updates-dev <jdk-updates-dev-retn at openjdk.java.net> On Behalf Of Dmitry Chuyko
    Sent: Donnerstag, 11. März 2021 16:22
    To: jdk-updates-dev at openjdk.java.net
    Subject: [11u] RFR (S) 8223444: Improve CodeHeap Free Space Management

    Hello,

    Original RFE: https://bugs.openjdk.java.net/browse/JDK-8223444
    Original post-fix: https://bugs.openjdk.java.net/browse/JDK-8231460

    Original patch applies almost cleanly except 4 changes in 
    CodeHeap::add_to_freelist because JDK-8238356 is already backported, 
    they were applied manually.
    Original post-fix (for performance issue) applies cleanly.

    11u webrev: http://cr.openjdk.java.net/~dchuyko/8223444/webrev.11u.00/

    Testing: tier1, tier2.

    --
    Thanks,
    -Dmitry