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ruby--ruby/tool/ruby_vm
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Takashi Kokubun 151f8be40d
Make JIT-ed leave insn leaf 
to eliminate sp / pc moves by cancelling JIT execution on interrupts.

$ benchmark-driver benchmark.yml -v --rbenv 'before --jit;after --jit' --repeat-count=12 --output=all
before --jit: ruby 2.8.0dev (2020-04-01T03:48:56Z master 5a81562dfe) +JIT [x86_64-linux]
after --jit: ruby 2.8.0dev (2020-04-01T04:58:01Z master 39beb26a27) +JIT [x86_64-linux]
Calculating -------------------------------------
                                 before --jit           after --jit
Optcarrot Lan_Master.nes    75.06409603894944     76.06422026555558 fps
                            75.12025067279242     78.48161731616810
                            77.42020273492177     79.78958240950033
                            79.07253675128945     79.88645902325614
                            79.99179109732327     80.33743931749331
                            80.07633091008627     80.53790081529166
                            80.15450942667547     80.99048270668010
                            80.48372803283709     81.70497146081003
                            80.57410149187352     82.79494539467382
                            81.80449157081202     82.85797792223954
                            82.24629397834902     83.00603891515506
                            82.63708148686703     83.23221006969828

$ benchmark-driver -v --rbenv 'before;before --jit;after --jit' benchmark/mjit_leave.yml --repeat-count=4
before: ruby 2.8.0dev (2020-04-01T03:48:56Z master 5a81562dfe) [x86_64-linux]
before --jit: ruby 2.8.0dev (2020-04-01T03:48:56Z master 5a81562dfe) +JIT [x86_64-linux]
after --jit: ruby 2.8.0dev (2020-04-01T04:58:01Z master 39beb26a27) +JIT [x86_64-linux]
Calculating -------------------------------------
                         before  before --jit  after --jit
          mjit_leave   106.656M       82.786M      91.635M i/s -    200.000M times in 1.875183s 2.415881s 2.182569s

Comparison:
                       mjit_leave
              before: 106656239.9 i/s
         after --jit:  91635143.7 i/s - 1.16x  slower
        before --jit:  82785537.2 i/s - 1.29x  slower
2020-03-31 22:10:16 -07:00
..
controllers delete emacs mode lines [ci skip] 2018-12-27 06:12:09 +00:00
helpers vm.inc now in C99 2019-01-25 14:09:10 +00:00
loaders extend rb_call_cache 2019-11-07 17:41:30 +09:00
models Introduce an "Inline IVAR cache" struct 2019-12-05 13:37:02 -08:00
scripts delete emacs mode lines [ci skip] 2018-12-27 06:12:09 +00:00
tests new insns.def format (2nd try) 2018-01-12 08:38:07 +00:00
views Make JIT-ed leave insn leaf 2020-03-31 22:10:16 -07:00