Mikael Gerdin
10379e7e82
8048268: G1 Code Root Migration performs poorly
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Replace G1CodeRootSet with a Hashtable based implementation, merge Code Root Migration phase into Code Root Scanning
Reviewed-by: jmasa, brutisso, tschatzl
2014-08-29 13:12:21 +02:00
Thomas Schatzl
24bee82e67
8052170: G1 asserts at collection exit with -XX:-G1DeferredRSUpdate
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Do not try to verify timing measures for the redirty logged cards phase when it is not executed.
Reviewed-by: brutisso, jmasa
2014-08-07 22:28:16 +02:00
Thomas Schatzl
f161bd6d16
8027959: Early reclamation of large objects in G1
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Try to reclaim humongous objects at every young collection after doing a conservative estimate of its liveness.
Reviewed-by: brutisso, mgerdin
2014-07-23 09:03:32 +02:00
Stefan Karlsson
1b001a2afd
8049421: G1 Class Unloading after completing a concurrent mark cycle
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Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
2014-07-07 10:12:40 +02:00
Stefan Karlsson
ef1e9b3c80
8049420: Backout 8048248 to correct attribution
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Reviewed-by: ehelin, brutisso
2014-07-07 12:37:11 +02:00
Stefan Karlsson
8c3aced316
8048248: G1 Class Unloading after completing a concurrent mark cycle
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Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
2014-07-07 10:12:40 +02:00
Goetz Lindenmaier
8e7c8f1d88
8044775: Improve usage of umbrella header atomic.inline.hpp
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Reviewed-by: stefank, kvn
2014-06-04 11:56:44 +02:00
David Chase
305ec3bd3f
8037816: Fix for 8036122 breaks build with Xcode5/clang
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Repaired or selectively disabled offending formats; future-proofed with additional checking
Reviewed-by: kvn, jrose, stefank
2014-05-09 16:50:54 -04:00
Thomas Schatzl
c5ef16027b
8019342: G1: High "Other" time most likely due to card redirtying
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Parallelize card redirtying to decrease the time it takes.
Reviewed-by: brutisso
2014-04-16 16:46:58 +02:00
Stefan Karlsson
6583b826bb
8039244: Don't use UINT32_FORMAT and INT32_FORMAT when printing uints and ints in the GC code
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Reviewed-by: brutisso, tschatzl
2014-04-04 09:46:10 +02:00
Vladimir Kempik
0ab60ab172
8016302: Change type of the number of GC workers to unsigned int (2)
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Reviewed-by: tschatzl, jwilhelm
2014-04-03 17:49:31 +04:00
Per Lidén
4a4c0fce93
8029075: String deduplication in G1
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Implementation of JEP 192, http://openjdk.java.net/jeps/192
Reviewed-by: brutisso, tschatzl, coleenp
2014-03-18 19:07:22 +01:00
Thomas Schatzl
2a8616c9d6
8035654: Add times for evacuation failure handling in "Other" time
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Detailed breakdown of time spent in the evacuation failure handling phases to make the "Other" time roughly correspond to the sum of its parts.
Reviewed-by: jwilhelm, jmasa
2014-03-17 10:13:42 +01:00
Thomas Schatzl
80188ce0b2
8035398: Add card redirty time in "Other" time in G1
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Show the time taken by card redirtying during GC in a new "Redirty Cards" line.
Reviewed-by: jwilhelm, brutisso
2014-03-17 10:13:27 +01:00
Thomas Schatzl
d3e28ca682
8027295: Free CSet takes ~50% of young pause time
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Improve fast card cache iteration and avoid taking locks when freeing the collection set.
Reviewed-by: brutisso
2014-03-17 10:13:18 +01:00
Thomas Schatzl
329e55e7b0
8035406: Improve data structure for Code Cache remembered sets
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Change the code cache remembered sets data structure from a GrowableArray to a chunked list of nmethods. This makes the data structure more amenable to parallelization, and decreases freeing time.
Reviewed-by: mgerdin, brutisso
2014-03-17 10:12:21 +01:00
John Cuthbertson
f63547bf71
7145569: G1: optimize nmethods scanning
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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
2013-08-15 10:52:18 +02:00
John Cuthbertson
c38f8fc543
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
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Refactor G1's hot card cache and card counts table into their own files. Simplify the card counts table, including removing the encoding of the card index in each entry. The card counts table now has a 1:1 correspondence with the cards spanned by heap. Space for the card counts table is reserved from virtual memory (rather than C heap) during JVM startup and is committed/expanded when the heap is expanded. Changes were also reviewed-by Vitaly Davidovich.
Reviewed-by: tschatzl, jmasa
2013-05-09 11:16:39 -07:00
Bengt Rutisson
38f6de7a0c
8006242: G1: WorkerDataArray<T>::verify() too strict for double calculations
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Also reviewed by vitalyd@gmail.com .
Reviewed-by: johnc, mgerdin
2013-01-16 12:46:27 +01:00
Jon Masamitsu
1ea36e2324
7200615: NPG: optimized VM build is broken
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Reviewed-by: kvn
2012-09-25 07:05:55 -07:00
Bengt Rutisson
68bbfe24e7
7178363: G1: Remove the serial code for PrintGCDetails and make it a special case of the parallel code
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Also reviewed by vitalyd@gmail.com . Introduced the WorkerDataArray class. Fixed some minor logging bugs.
Reviewed-by: johnc, mgerdin
2012-08-23 10:21:12 +02:00
Bengt Rutisson
3571ee23dc
7178361: G1: Make sure that PrintGC and PrintGCDetails use the same timing for the GC pause
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Also reviewed by: vitalyd@gmail.com . Move the timing out of G1CollectorPolicy into the G1GCPhaseTimes class
Reviewed-by: johnc
2012-07-11 22:47:38 +02:00
