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  1. JDK
  2. JDK-8241841

Shenandoah: ditch one of allocation type counters in ShenandoahHeapRegion

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        We currently count the allocation by type: TLAB, GCLAB, shared allocs. All together, they should add up to the "used" space in the region. That means we can ditch one of the counters, and infer it from the already tracked "used" size.

        "Shared" counter seems to be the most profitable to go: it usually means either a small allocation that does not need another small roadbump on allocation path, or the humongous allocation that does increments for every region in the humongous chain.

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            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8244350 Shenandoah: ditch one of allocation type counters in ShenandoahHeapRegion

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8245344 Shenandoah: ditch one of allocation type counters in ShenandoahHeapRegion

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            blocks

            Enhancement - null JDK-8241845 Shenandoah: align ShenandoahHeapRegions to cache lines

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Enhancement - null JDK-8242114 Shenandoah: remove ShenandoahHeapRegion::reset_alloc_metadata_to_shared

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

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                shade Aleksey Shipilev
                shade Aleksey Shipilev
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