- 11 2月, 2013 1 次提交
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由 brutisso 提交于
Summary: Use Stack<> instead of GrowableArray to keep track of preserved marks. Also reviewed by vitalyd@gmail.com. Reviewed-by: johnc, jcoomes
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- 05 10月, 2012 1 次提交
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由 johnc 提交于
Summary: Divide by zero error, if ParallelGCThreads is 0, when adjusting the PLAB size. Reviewed-by: jmasa, jcoomes
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- 21 9月, 2012 1 次提交
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由 johnc 提交于
Summary: Reset the fields in ParGCAllocBuffer, that are used for accumulating values for the ResizePLAB sensors in PLABStats, to zero after flushing the values to the PLABStats fields. Flush PLABStats values only when retiring the final allocation buffers prior to disposing of a G1ParScanThreadState object, rather than when retiring every allocation buffer. Reviewed-by: jwilhelm, jmasa, ysr
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- 17 9月, 2012 1 次提交
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由 brutisso 提交于
Summary: Move the first part of the GC logging, including timestamp, to the start of the GC Reviewed-by: johnc, jwilhelm
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- 02 9月, 2012 1 次提交
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由 coleenp 提交于
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: Njmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
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- 29 8月, 2012 1 次提交
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由 johnc 提交于
Summary: Add the flags G1EvacuationFailureALot flag (and supporting flags) to force trigger evacuation failures. The support flags control how often to trigger an evacuation failure and during which types of evacuation pause. This functionality is analogous to that of PromotionFailureALot for the other collectors. Reviewed-by: brutisso
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- 23 8月, 2012 1 次提交
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由 brutisso 提交于
7178363: G1: Remove the serial code for PrintGCDetails and make it a special case of the parallel code Summary: Also reviewed by vitalyd@gmail.com. Introduced the WorkerDataArray class. Fixed some minor logging bugs. Reviewed-by: johnc, mgerdin
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- 22 8月, 2012 1 次提交
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由 johnc 提交于
Summary: Correct the result value of G1CollectedHeap::pending_card_num(). Change the code that calculates the GC efficiency of a non-young heap region to use historical data from mixed GCs and the actual number of live bytes when predicting how long it would take to collect the region. Changes were also reviewed by Thomas Schatzl. Reviewed-by: azeemj, brutisso
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- 07 8月, 2012 1 次提交
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由 johnc 提交于
Summary: Employ PLABStats instances to record information about survivor and old PLABs, and use the recorded stats to adjust the sizes of survivor and old PLABS. Reviewed-by: johnc, ysr Contributed-by: NBrandon Mitchell <brandon@twitter.com>
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- 20 7月, 2012 1 次提交
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由 tonyp 提交于
Summary: Various cleanups as a prelude to introducing iterators for HeapRegions. Reviewed-by: johnc, brutisso
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- 29 6月, 2012 1 次提交
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由 zgu 提交于
7151532: DCmd for hotspot native memory tracking Summary: Implementation of native memory tracking phase 1, which tracks VM native memory usage, and related DCmd Reviewed-by: acorn, coleenp, fparain
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- 06 6月, 2012 1 次提交
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由 brutisso 提交于
Reviewed-by: azeemj, jmasa
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- 18 4月, 2012 1 次提交
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由 tonyp 提交于
Summary: Change the type of fields / variables / etc. that represent region counts and indeces from size_t to uint. Reviewed-by: iveresov, brutisso, jmasa, jwilhelm
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- 16 4月, 2012 1 次提交
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由 brutisso 提交于
Summary: removed oop_verify_old_oop and allow_dirty. Also reviewed by: alexlamsl@gmail.com Reviewed-by: jmasa, jwilhelm
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- 06 4月, 2012 1 次提交
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由 tonyp 提交于
Summary: Removed lots of dead code after some recent conc mark changes. Reviewed-by: brutisso, johnc
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- 16 3月, 2012 1 次提交
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由 brutisso 提交于
Reviewed-by: tonyp, johnc
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- 16 2月, 2012 1 次提交
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由 tonyp 提交于
Summary: Revamp of the mechanism that chooses old regions for inclusion in the CSet. It simplifies the code and introduces min and max bounds on the number of old regions added to the CSet at each mixed GC to avoid pathological cases. It also ensures that when we do a mixed GC we'll always find old regions to add to the CSet (i.e., it eliminates the case where a mixed GC will collect no old regions which can happen today). Reviewed-by: johnc, brutisso
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- 14 2月, 2012 1 次提交
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由 tonyp 提交于
Summary: If we try to schedule an initial-mark GC in order to explicit start a conc mark cycle and it gets pre-empted by antoher GC, we should retry the attempt as long as it's appropriate for the GC cause. Reviewed-by: brutisso, johnc
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- 12 1月, 2012 1 次提交
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由 johnc 提交于
Summary: Remove the separate counting phase of concurrent marking by tracking the amount of marked bytes and the cards spanned by marked objects in marking task/worker thread local data structures, which are updated as individual objects are marked. Reviewed-by: brutisso, tonyp
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- 17 1月, 2012 1 次提交
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由 brutisso 提交于
Reviewed-by: tonyp, johnc
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- 11 1月, 2012 1 次提交
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由 tonyp 提交于
Summary: This change simplifies the interaction between GC and concurrent marking. By disabling survivor spaces during the initial-mark pause we don't need to propagate marks of objects we copy during each GC (since we never need to copy an explicitly marked object). Reviewed-by: johnc, brutisso
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- 24 12月, 2011 1 次提交
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由 johnc 提交于
Summary: Parallelize the removal of self forwarding pointers etc. by wrapping in a HeapRegion closure, which is then wrapped inside an AbstractGangTask. Reviewed-by: tonyp, iveresov
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- 05 1月, 2012 1 次提交
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由 tonyp 提交于
Summary: Introduce a flag that is set when a heap expansion attempt during a GC fails so that we do not consantly attempt to expand the heap when it's going to fail anyway. This not only prevents the excessive ergo output (which is generated when a region allocation fails) but also avoids excessive and ultimately unsuccessful expansion attempts. Reviewed-by: jmasa, johnc
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- 15 12月, 2011 2 次提交
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由 johnc 提交于
Summary: Cache workers' calculated starting heap region, used for parallel iteration over the collcection set, for subsequent reuse. Reviewed-by: tonyp, brutisso
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由 jmasa 提交于
Summary: Change variables representing the number of GC workers to uint from int and size_t. Change the parameter in work(int i) to work(uint worker_id). Reviewed-by: brutisso, tonyp
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- 14 12月, 2011 1 次提交
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由 stefank 提交于
Summary: Fixed G1CollectedHeap::is_in, added tests, cleaned up comments and made Space::is_in pure virtual. Reviewed-by: brutisso, tonyp, jcoomes
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- 18 11月, 2011 1 次提交
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由 johnc 提交于
Summary: Parallelize the serial code that was used to mark objects reachable from survivor objects in the collection set. Some minor improvments in the timers used to track the freeing of the collection set along with some tweaks to PrintGCDetails. Reviewed-by: tonyp, brutisso
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- 08 11月, 2011 2 次提交
- 28 9月, 2011 1 次提交
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由 brutisso 提交于
Summary: Remove the extra guard to allow G1 to use ReduceInitialCardMarks Reviewed-by: jmasa, tonyp, johnc, ysr
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- 24 9月, 2011 1 次提交
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由 tonyp 提交于
Summary: Fixed a few inconsistencies in the monitoring data, in particular when reported from jstat. Reviewed-by: jmasa, brutisso, johnc
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- 23 9月, 2011 1 次提交
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由 johnc 提交于
Summary: G1 now uses two reference processors - one is used by concurrent marking and the other is used by STW GCs (both full and incremental evacuation pauses). In an evacuation pause, the reference processor is embedded into the closures used to scan objects. Doing so causes causes reference objects to be 'discovered' by the reference processor. At the end of the evacuation pause, these discovered reference objects are processed - preserving (and copying) referent objects (and their reachable graphs) as appropriate. Reviewed-by: ysr, jwilhelm, brutisso, stefank, tonyp
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- 21 9月, 2011 1 次提交
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由 johnc 提交于
Summary: As a result of the changes for 7080389, an evacuation failure during an initial mark pause may result in some root objects not being marked. Pass whether the caller is a root scanning closure into the evacuation failure handling code so that the thread that successfully forwards an object to itself also marks the object. Reviewed-by: ysr, brutisso, tonyp
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- 30 8月, 2011 1 次提交
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由 johnc 提交于
Summary: Refactor code marking code in the evacuation pause copy closures so that an evacuated object is only marked by the thread that successfully copies it. Reviewed-by: stefank, brutisso, tonyp
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- 19 8月, 2011 1 次提交
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由 brutisso 提交于
Summary: Removed the possibility to turn off generational mode for G1. Reviewed-by: johnc, ysr, tonyp
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- 12 8月, 2011 1 次提交
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由 tonyp 提交于
Summary: Refactor the allocation code during GC to use the G1AllocRegion abstraction. Use separate subclasses of G1AllocRegion for survivor and old regions. Avoid BOT updates and dirty survivor cards incrementally for the former. Reviewed-by: brutisso, johnc, ysr
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- 10 8月, 2011 1 次提交
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由 jmasa 提交于
Summary: Select number of GC threads dynamically based on heap usage and number of Java threads Reviewed-by: johnc, ysr, jcoomes
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- 19 11月, 2011 1 次提交
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由 tonyp 提交于
Summary: Major cleanup of the G1CollectorPolicy class. It removes a lot of unused fields and methods and also consolidates replicated information (mainly various ways of counting the number of CSet regions) into one copy. Reviewed-by: johnc, brutisso
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- 02 8月, 2011 1 次提交
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由 johnc 提交于
Summary: In root processing, move the scanning of the reference processor's discovered lists to before RSet updating and scanning. When scanning the reference processor's discovered lists, use a buffering closure so that the time spent copying any reference object is correctly attributed. Also removed a couple of unused and irrelevant timers. Reviewed-by: ysr, jmasa
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- 25 6月, 2011 1 次提交
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由 tonyp 提交于
Summary: Extend and make more consistent the output from the G1PrintHeapRegions flag. Reviewed-by: johnc, jmasa
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