tamao [Mon, 03 Jun 2013 14:37:13 -0700] rev 17856
6976350: G1: deal with fragmentation while copying objects during GC
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: tamao <tao.mao@oracle.com>
johnc [Tue, 04 Jun 2013 10:04:06 -0700] rev 17855
8015244: G1: Verification after a full GC is incorrectly placed.
Summary: In a full GC, move the verification after the GC to after RSet rebuilding. Verify RSet entries during a full GC under control of a flag.
Reviewed-by: tschatzl, brutisso
tschatzl [Tue, 28 May 2013 09:32:06 +0200] rev 17854
8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen
Summary: Fixed the output of G1SummarizeRSetStats: too small datatype for the number of concurrently processed cards, added concurrent remembered set thread time retrieval for Linux and Windows (BSD uses os::elapsedTime() now), and other cleanup. The information presented during VM operation is now relative to the previous output, not always cumulative if G1SummarizeRSetStatsPeriod > 0. At VM exit, the code prints a cumulative summary.
Reviewed-by: johnc, jwilhelm
jwilhelm [Sat, 01 Jun 2013 10:00:56 +0200] rev 17853
Merge
stefank [Thu, 30 May 2013 10:58:16 +0200] rev 17852
8015486: PSScavenge::is_obj_in_young is unnecessarily slow with UseCompressedOops
Summary: Compare compressed oops to a compressed young gen boundary instead of uncompressing the oops before doing the young gen boundary check.
Reviewed-by: brutisso, jmasa
jcoomes [Thu, 30 May 2013 13:04:51 -0700] rev 17851
6725714: par compact - add a table to speed up bitmap searches
Reviewed-by: jmasa, tschatzl
amurillo [Fri, 31 May 2013 10:04:00 -0700] rev 17850
8015690: new hotspot build - hs25-b36
Reviewed-by: jcoomes
amurillo [Fri, 31 May 2013 09:37:49 -0700] rev 17849
Added tag hs25-b35 for changeset 02ffee063e24
amurillo [Fri, 31 May 2013 09:37:48 -0700] rev 17848
Merge
jwilhelm [Fri, 31 May 2013 09:55:35 +0200] rev 17847
Merge
stefank [Mon, 27 May 2013 12:58:42 +0200] rev 17846
8015422: Large performance hit when the StringTable is walked twice in Parallel Scavenge
Summary: Combine the calls to StringTable::unlink and StringTable::oops_do in Parallel Scavenge.
Reviewed-by: pliden, coleenp
stefank [Mon, 27 May 2013 12:56:34 +0200] rev 17845
8015428: Remove unused CDS support from StringTable
Summary: The string in StringTable is not used by CDS anymore. Remove the unnecessary code in preparation for 8015422: Large performance hit when the StringTable is walked twice in Parallel Scavenge
Reviewed-by: pliden, tschatzl, coleenp
stefank [Mon, 27 May 2013 15:22:59 +0200] rev 17844
8015268: NPG: 2.5% regression in young GC times on CRM Sales Opty
Summary: Split SystemDictionary and ClassLoaderDataGraph root processing to help load balancing.
Reviewed-by: tschatzl, johnc
jwilhelm [Fri, 24 May 2013 14:16:41 +0200] rev 17843
Merge
tamao [Wed, 22 May 2013 11:11:47 -0700] rev 17842
8007762: Rename a bunch of methods in size policy across collectors
Summary: Rename: compute_generations_free_space() = compute_eden_space_size() + compute_old_gen_free_space(); update related logging messages
Reviewed-by: jmasa, johnc, tschatzl, brutisso
Contributed-by: tamao <tao.mao@oracle.com>
tamao [Tue, 21 May 2013 16:43:41 -0700] rev 17841
8015007: Incorrect print format in error message for VM cannot allocate the requested heap
Summary: Correct the wrong print format in error message for VM cannot allocate the requested heap; and clean up the error message call in check_alignment()
Reviewed-by: brutisso, tschatzl
Contributed-by: tamao <tao.mao@oracle.com>