7133038: G1: Some small profile based optimizations Summary: Some minor profile based optimizations. Reduce the number of branches and branch mispredicts by removing some virtual calls, through closure specalization, and refactoring some conditional statements. Reviewed-by: brutisso, tonyp

7112413: JVM Crash, possibly GC-related Summary: disable UseAdaptiveSizePolicy with the CMS and ParNew Reviewed-by: johnc, brutisso

7127706: G1: re-enable survivors during the initial-mark pause Summary: Re-enable survivors during the initial-mark pause. Afterwards, the concurrent marking threads have to scan them and mark everything reachable from them. The next GC will have to wait for the survivors to be scanned. Reviewed-by: brutisso, johnc

6484965: G1: piggy-back liveness accounting phase on marking 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

7132398: G1: java.lang.IllegalArgumentException: Invalid threshold: 9223372036854775807 > max (1073741824) Summary: Was not passing the right old pool max to the memory pool constructor in the fix for 7078465. Reviewed-by: brutisso, johnc

7132311: G1: assert((s == klass->oop_size(this)) || (Universe::heap()->is_gc_active() && ((is_typeArray()... Summary: Move the check for when to call collect() to before we do a humongous object allocation Reviewed-by: stefank, tonyp

7131791: G1: Asserts in nightly testing due to 6976060 Summary: Create a handle and fake an object to make sure that we don't loose the memory we just allocated Reviewed-by: tonyp, stefank

7078465: G1: Don't use the undefined value (-1) for the G1 old memory pool max size Reviewed-by: johnc, brutisso

7129271: G1: Interference from multiple threads in PrintGC/PrintGCDetails output Summary: During an initial mark pause, signal the Concurrent Mark thread after the pause output from PrintGC/PrintGCDetails is complete. Reviewed-by: tonyp, brutisso

7097586: G1: improve the per-space output when using jmap -heap Summary: Extend the jmap -heap output for G1 to include some more G1-specific information. Reviewed-by: brutisso, johnc, poonam

6976060: G1: humongous object allocations should initiate marking cycles when necessary Reviewed-by: tonyp, johnc

7130334: G1: Change comments and error messages that refer to CMS in g1/concurrentMark.cpp/hpp Summary: Removed references to CMS in the concurrentMark.cpp/hpp files. Reviewed-by: tonyp, jmasa, johnc

7121547: G1: High number mispredicted branches while iterating over the marking bitmap Summary: There is a high number of mispredicted branches associated with calling BitMap::iteratate() from within CMBitMapRO::iterate(). Implement a version of CMBitMapRO::iterate() directly using inline-able routines. Reviewed-by: tonyp, iveresov

Merge

7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS Summary: Make sure that CompilationPolicy::event() doesn't throw exceptions Reviewed-by: kvn, never

7120468: SPARC/x86: use frame::describe to enhance trace_method_handle Summary: improvements of TraceMethodHandles for JSR292 Reviewed-by: never, twisti

7123910: Some CTW tests crash VM: is_loaded() && that->is_loaded() Summary: handle not loaded array klass in Parse::do_checkcast(). Reviewed-by: kvn, never

Merge

7132936: guarantee(t != NULL) failed: must be con Summary: Use !higher_equal() check to skip top and values which fit. Reviewed-by: never

7116050: C2/ARM: memory stomping error with DivideMcTests Summary: Block::schedule_local() may write beyond end of ready_cnt array Reviewed-by: never, kvn

7132945: Tiered: adjust OSR threshold of level 3 Summary: Change the value of Tier3BackEdgeThreshold from 7000 to 60000 Reviewed-by: kvn, never

7120450: complete information dumped by frame_describe Summary: improvements of frame_describe Reviewed-by: never, twisti

7130676: Tiered: assert(bci == 0 || 0<= bci && bci<code_size()) during stack trace construction Reviewed-by: kvn, iveresov

7131028: Switch statement takes wrong path Summary: Pass correct type to branch in LIRGenerator::do_SwitchRanges() Reviewed-by: kvn, never