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  1. JDK
  2. JDK-8058968

Compiler time traces should be improved

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 9
    • Component/s: hotspot
    • Labels:
      None
    • Subcomponent:
    • Resolved In Build:
      b35

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        Description

        Current C1/C2 compiler time tracing is old and rusty:
         - separate VM options for C1 and C2 compilers
         - C2 tracking ignores CompilerBroker (mostly), and doing the tracking on its own
         - bailouts and invalidates are ignored in time tracks
         - significant parts of compiler code is not timed accurately

        We need to fix that for any future compiler performance work to succeed.
        (Patch follows).

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                Assignee:
                shade Aleksey Shipilev
                Reporter:
                shade Aleksey Shipilev
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                  Created:
                  Updated:
                  Resolved: