[infinispan-issues] [JBoss JIRA] (ISPN-6062) Remove megamorphic calls when calling next method in interceptor stack

[Radim Vansa (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-6062?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Radim Vansa updated ISPN-6062:
------------------------------
              Status: Pull Request Sent  (was: Open)
    Git Pull Request: https://github.com/infinispan/infinispan/pull/3931


> Remove megamorphic calls when calling next method in interceptor stack
> ----------------------------------------------------------------------
>
>                 Key: ISPN-6062
>                 URL: https://issues.jboss.org/browse/ISPN-6062
>             Project: Infinispan
>          Issue Type: Enhancement
>          Components: Core
>    Affects Versions: 8.1.0.Final
>            Reporter: Radim Vansa
>
> With current acceptor-visitor architecture of interceptor stack, calls to next interceptor use megamorphic interface calls. This is suboptimal as it prohibits the JIT compiler from inlining the calls.
> Since the interceptor stack is not changed very often, we may adapt the code programmatically to call next interceptor directly.
> The solution should verify that interceptor stack is inlined as much as possible with 'common' JVM options - increasing -XX:MaxInlineLevel is viable, while we should not request users to mess with -XX:DesiredMethodLimit. Preferably, -XX:FreqInlineSize and -XX:MaxInlineSize should stay at defaults.



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