gistfile1.txt

[] ~/projects/jruby $ jruby --sample -e '100.times { 100.times { 100.times { 100.times { "foo" } } } }'

[] ~/projects/jruby $ head -50 sample.txt
--- Execution profile ---
Total samples       : 7554
unknown_Java        : 2 (0.03%)
not_walkable_Java   : 26 (0.34%)
deoptimization      : 5 (0.07%)

Frame buffer usage  : 13.9233%

          ns  percent  samples  top
  ----------  -------  -------  ---
   498000000   13.19%      996  JNIMethodBlock::add_method(Method*)
   300500000    7.96%      601  org.jruby.runtime.Block.setVisibility
   149500000    3.96%      299  org.jruby.RubyString.newStringShared
    55000000    1.46%      110  org.jruby.ir.runtime.IRRuntimeHelpers.updateBlockState
    54000000    1.43%      108  DashE.RUBY$block$-e$3
    51000000    1.35%      102  __psynch_cvwait
    41000000    1.09%       82  PhaseIdealLoop::idom_no_update(Node*) const
    40500000    1.07%       81  java.lang.invoke.MethodHandle.invokeBasic
    36500000    0.97%       73  IndexSetIterator::advance_and_next()
    31500000    0.83%       63  PhaseChaitin::Split(unsigned int, ResourceArea*)
    31500000    0.83%       63  java.lang.invoke.LambdaForm$MH.2056418216.invokeExact_MT
    31500000    0.83%       63  org.jruby.runtime.Frame.setVisibility
    31000000    0.82%       62  java.lang.ThreadLocal$ThreadLocalMap.remove
    30500000    0.81%       61  org.jruby.runtime.ThreadContext.pushFrame
    30000000    0.79%       60  org.jruby.runtime.ThreadContext.getNextFrame
    29000000    0.77%       58  java.lang.invoke.LambdaForm$BMH.1615056168.reinvoke
    24500000    0.65%       49  IndexSetIterator::next()
    23500000    0.62%       47  java.lang.ThreadLocal.get
    23000000    0.61%       46  SymbolTable::lookup(int, char const*, int, unsigned int)
    22500000    0.60%       45  IndexSet::insert(unsigned int)
    21000000    0.56%       42  PhaseIdealLoop::dom_depth(Node*) const
    20500000    0.54%       41  PhaseChaitin::build_ifg_physical(ResourceArea*)
    20000000    0.53%       40  java.lang.invoke.LambdaForm$DMH.666988784.invokeStatic_L6_L
    20000000    0.53%       40  pthread_getspecific
    19500000    0.52%       39  PhaseChaitin::gather_lrg_masks(bool)
    19000000    0.50%       38  PhaseChaitin::post_allocate_copy_removal()
    18000000    0.48%       36  zError
    17500000    0.46%       35  org.jruby.runtime.Block.setEvalType
    17000000    0.45%       34  org.jruby.runtime.Block.getVisibility
    17000000    0.45%       34  _platform_bzero$VARIANT$Haswell
    16500000    0.44%       33  PhaseAggressiveCoalesce::insert_copies(Matcher&)
    16500000    0.44%       33  binary_search(Array<Method*>*, Symbol*)
    16500000    0.44%       33  java.lang.ThreadLocal.remove
    16000000    0.42%       32  _platform_memmove$VARIANT$Haswell
    16000000    0.42%       32  VectorSet::test_set(unsigned int)
    15500000    0.41%       31  Arena::Amalloc(unsigned long, AllocFailStrategy::AllocFailEnum)
    15500000    0.41%       31  org.jruby.ir.targets.Bootstrap.string
    15000000    0.40%       30  GrowableArray<Metadata*>::append(Metadata* const&)
    14500000    0.38%       29  java.lang.ThreadLocal.getMap
    14500000    0.38%       29  PhaseLive::compute(unsigned int)