- 20 1月, 2014 1 次提交
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由 tschatzl 提交于
8027455: Improve symbol table scan times during gc pauses Summary: Parallelize string table and symbol table scan during remark and full GC. Some additional statistics output if the experimental flag G1TraceStringSymbolTableScrubbing is set. Reviewed-by: mgerdin, coleenp, brutisso
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- 23 11月, 2013 1 次提交
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由 mgronlun 提交于
Reviewed-by: dholmes, egahlin
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- 26 9月, 2013 1 次提交
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由 hseigel 提交于
Summary: Enable CHECK_UNHANDLED_OOPS in fastdebug builds across all supported platforms. Reviewed-by: coleenp, hseigel, dholmes, stefank, twisti, ihse, rdurbin Contributed-by: lois.foltan@oracle.com
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- 24 9月, 2013 1 次提交
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由 mgerdin 提交于
Summary: Move some G1 specific code from CardTableModRefBS to G1SATBCardTableModRefBS. Reviewed-by: brutisso, tschatzl, ehelin
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- 11 9月, 2013 1 次提交
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由 tschatzl 提交于
Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation. Reviewed-by: stefank, dholmes
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- 22 8月, 2013 1 次提交
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由 brutisso 提交于
Reviewed-by: tonyp, tschatzl
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- 15 8月, 2013 1 次提交
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由 johnc 提交于
Summary: Add a list of nmethods to the RSet for a region that contain references into the region. Skip scanning the code cache during root scanning and scan the nmethod lists during RSet scanning instead. Reviewed-by: tschatzl, brutisso, mgerdin, twisti, kvn
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- 04 7月, 2013 1 次提交
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由 jiangli 提交于
Summary: Remove -Xaprof and Klass::_alloc_count & ArrayKlass::_alloc_size. Reviewed-by: stefank, coleenp
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- 10 6月, 2013 1 次提交
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由 sla 提交于
Reviewed-by: acorn, coleenp, sla Contributed-by: NKaren Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
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- 04 6月, 2013 1 次提交
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由 tamao 提交于
Summary: Create G1ParGCAllocBufferContainer to contain two buffers instead of previously using one buffer, in order to hold the first priority buffer longer. Thus, when some large objects hits the value of free space left in the first priority buffer it has an alternative to fit in the second priority buffer while the first priority buffer is given more chances to try allocating smaller objects. Overall, it will improve heap space efficiency. Reviewed-by: johnc, jmasa, brutisso Contributed-by: Ntamao <tao.mao@oracle.com>
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- 17 5月, 2013 1 次提交
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由 ehelin 提交于
Reviewed-by: brutisso, tschatzl
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- 10 4月, 2013 1 次提交
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由 stefank 提交于
Reviewed-by: brutisso, jmasa
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- 28 3月, 2013 1 次提交
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由 mgerdin 提交于
Summary: Keep a counter of how many times we were stalled by the GC locker, add a diagnostic flag which sets the limit. Reviewed-by: brutisso, ehelin, johnc
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- 19 4月, 2013 1 次提交
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由 johnc 提交于
Summary: Stack allocate instances of HeapRegionRemSetIterator during RSet scanning. Reviewed-by: brutisso, jwilhelm
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- 23 4月, 2013 1 次提交
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由 stefank 提交于
Reviewed-by: tschatzl, jmasa
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- 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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