johnc [Wed, 27 Apr 2011 14:40:41 -0700] rev 9343
7037756: Deadlock in compiler thread similiar to 6789220
Summary: Avoid blocking in CompileBroker::compile_method_base() if the current thread holds the pending list lock.
Reviewed-by: never, brutisso, ysr
ysr [Tue, 26 Apr 2011 21:17:24 -0700] rev 9342
7039089: G1: changeset for 7037276 broke heap verification, and related cleanups
Summary: In G1 heap verification, we no longer scan perm to G1-collected heap refs as part of process_strong_roots() but rather in a separate explicit oop iteration over the perm gen. This preserves the original perm card-marks. Added a new assertion in younger_refs_iterate() to catch a simple subcase where the user may have forgotten a prior save_marks() call, as happened in the case of G1's attempt to iterate perm to G1 refs when verifying the heap before exit. The assert was deliberately weakened for ParNew+CMS and will be fixed for that combination in a future CR. Also made some (non-G1) cleanups related to code and comments obsoleted by the migration of Symbols to the native heap.
Reviewed-by: iveresov, jmasa, tonyp
iveresov [Tue, 26 Apr 2011 11:46:34 -0700] rev 9341
7037939: NUMA: Disable adaptive resizing if SHM large pages are used
Summary: Make the NUMA allocator behave properly with SHM and ISM large pages.
Reviewed-by: ysr
jcoomes [Sat, 23 Apr 2011 04:20:09 -0700] rev 9340
7037250: cscope.make database generation is silently broken
Reviewed-by: stefank
jmasa [Fri, 22 Apr 2011 09:26:09 -0700] rev 9339
Merge
jmasa [Thu, 21 Apr 2011 10:23:44 -0700] rev 9338
6946417: G1: Java VisualVM does not support G1 properly.
Summary: Added counters for jstat
Reviewed-by: tonyp, jwilhelm, stefank, ysr, johnc
ysr [Thu, 21 Apr 2011 01:16:20 -0700] rev 9337
Merge
ysr [Wed, 20 Apr 2011 19:19:30 -0700] rev 9336
7037276: Unnecessary double traversal of dirty card windows
Summary: Short-circuited an unnecessary double traversal of dirty card windows when iterating younger refs. Also renamed some cardtable methods for more clarity.
Reviewed-by: jmasa, stefank, poonam
iveresov [Wed, 20 Apr 2011 17:12:04 -0700] rev 9335
7034464: Support transparent large pages on Linux
Summary: Support transparent huge pages on Linux available since 2.6.38
Reviewed-by: iveresov, ysr
Contributed-by: aph@redhat.com
tonyp [Tue, 19 Apr 2011 15:46:59 -0400] rev 9334
7011855: G1: non-product flag to artificially grow the heap
Summary: It introduces non-product cmd line parameter G1DummyRegionsPerGC which indicates how many "dummy" regions to allocate at the end of each GC. This allows the G1 heap to grow artificially and makes concurrent marking cycles more frequent irrespective of what the application that is running is doing. The dummy regions will be found totally empty during cleanup so this parameter can also be used to stress the concurrent cleanup operation.
Reviewed-by: brutisso, johnc