Feature #17633
Updated by fidalgo (Paulo Fidalgo) about 3 years ago
Sorry, I've created I'm running this code against ruby 3.0.0 ``` # frozen_string_literal: true def number_combinations @number_combinations ||= (1..50).to_a.combination(5) end def max_sequence_numbers_reached?(elements) elements.slice_when { |i, j| i + 1 == j }.count <= 2 end puts "Combinations size:#{number_combinations.size}" splits = number_combinations.each_slice(number_combinations.size / 8) ractors = [] splits.each do |split| ractor = Ractor.new do combination = Ractor.receive puts "Received combination size:#{combination.size}" combination.map { |c| c unless max_sequence_numbers_reached?(c) }.compact end ractor.send(split) ractors << ractor end result = ractors.map(&:take) puts result.flatten.size ``` I'm taking one big array, split it into 8 other arrays and then use one actor for each subset to check if there is more than 2 sequence numbers. Since I'm not sharing state between actors nor doing something fancy, I would expect this to run 100% of the report on times. I have different errors when running ``` ruby ractor.rb Combinations size:2118760 <internal:ractor>:267: warning: Ractor is experimental, and the wrong place. Can be deleted/closed. behavior may change in future versions of Ruby! Also there are many implementation issues. Received combination size:264845 Received combination size:264845 Received combination size:264845 Received combination size:264845 malloc(): unaligned fastbin chunk detected Aborted (core dumped) ``` ``` ruby ractor.rb Combinations size:2118760 <internal:ractor>:267: warning: Ractor is experimental, and the behavior may change in future versions of Ruby! Also there are many implementation issues. Received combination size:264845 Received combination size:264845 Received combination size:264845 Received combination size:264845 Received combination size:264845 Received combination size:264845 <OBJ_INFO:gc_mark_ptr@gc.c:6106> 0x0000000007666050 [0 M ] T_NONE ractor.rb:8: [BUG] try to mark T_NONE object ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [x86_64-linux] -- Control frame information ----------------------------------------------- c:0011 p:---- s:0039 e:000038 IFUNC c:0010 p:---- s:0036 e:000035 CFUNC :each c:0009 p:---- s:0033 e:000032 IFUNC c:0008 p:---- s:0030 E:0014e0 CFUNC :each c:0007 p:---- s:0027 e:000026 CFUNC :each c:0006 p:---- s:0024 E:001480 CFUNC :count c:0005 p:0008 s:0020 E:0012d8 METHOD ractor.rb:8 c:0004 p:0006 s:0015 e:000014 BLOCK ractor.rb:18 [FINISH] c:0003 p:---- s:0011 e:000010 CFUNC :map c:0002 p:0040 s:0007 e:000006 BLOCK ractor.rb:18 [FINISH] c:0001 p:---- s:0003 e:000002 (none) [FINISH] -- Ruby level backtrace information ---------------------------------------- ractor.rb:18:in `block (2 levels) in <main>' ractor.rb:18:in `map' ractor.rb:18:in `block (3 levels) in <main>' ractor.rb:8:in `max_sequence_numbers_reached?' ractor.rb:8:in `count' ractor.rb:8:in `each' ractor.rb:8:in `each' ractor.rb:8:in `each' -- C level backtrace information ------------------------------------------- /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_print_backtrace+0x11) [0x7faa0e3fa6fb] vm_dump.c:758 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_vm_bugreport) vm_dump.c:998 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(bug_report_end+0x0) [0x7faa0e207dfa] error.c:763 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_bug_without_die) error.c:763 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(die+0x0) [0x7faa0e171e01] error.c:771 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_bug) error.c:773 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(gc_mark_ptr+0xd8) [0x7faa0e22d768] gc.c:6107 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(generator_mark+0xc) [0x7faa0e1fcdec] enumerator.c:1387 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(is_mark_stack_empty+0x0) [0x7faa0e2304cc] gc.c:6454 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(pop_mark_stack) gc.c:5458 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(gc_mark_stacked_objects) gc.c:6448 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(gc_mark_stacked_objects_all) gc.c:6494 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(gc_marks_rest) gc.c:7435 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(gc_marks+0x8) [0x7faa0e230e08] gc.c:7491 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(gc_start) gc.c:8309 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_multi_ractor_p+0x0) [0x7faa0e23299f] gc.c:8197 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_vm_lock_leave) vm_sync.h:93 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(garbage_collect) gc.c:8199 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(garbage_collect_with_gvl) gc.c:8502 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(objspace_malloc_increase) gc.c:10448 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(objspace_malloc_increase) gc.c:10426 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(objspace_malloc_fixup+0x17) [0x7faa0e2351c4] gc.c:10527 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(ruby_xmalloc2) gc.c:10598 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(ary_heap_alloc+0x14) [0x7faa0e178504] array.c:329 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(ary_heap_alloc) array.c:320 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(ary_resize_capa) array.c:448 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(ary_double_capa+0x44) [0x7faa0e17cd88] array.c:502 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(ary_ensure_room_for_push) array.c:653 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_array_ptr_use_start+0x0) [0x7faa0e17cf0d] array.c:1304 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_ary_push) array.c:1305 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(slicewhen_ii+0x132) [0x7faa0e1f8902] enum.c:3693 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_vm_pop_frame+0x0) [0x7faa0e3daab8] vm_insnhelper.c:3704 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_yield_with_cfunc) vm_insnhelper.c:3705 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(invoke_block_from_c_bh+0x10) [0x7faa0e3f21f3] vm.c:1358 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_yield) vm.c:1398 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_yield_0) vm_eval.c:1171 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_yield_1) vm_eval.c:1177 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_yield) vm_eval.c:1187 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(RB_FL_TEST_RAW+0x0) [0x7faa0e17695c] array.c:2523 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(RB_FL_ANY_RAW) ./include/ruby/internal/fl_type.h:258 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_array_len) ./include/ruby/internal/core/rarray.h:135 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_ary_each) array.c:2522 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_cfp_consistent_p+0x0) [0x7faa0e3e79e6] vm_eval.c:95 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_call0_cfunc_with_frame) vm_eval.c:97 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_call0_cfunc) vm_eval.c:109 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_call0_body) vm_eval.c:144 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_vm_call0) vm_eval.c:57 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/home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_invoke_proc+0x2a0) [0x7faa0e3e65d0] vm.c:1448 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_vm_invoke_proc+0x57) [0x7faa0e3e7707] vm.c:1485 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_proc_call_kw+0x9c) [0x7faa0e2f1bbc] proc.c:973 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_cfp_consistent_p+0x0) [0x7faa0e3e79e6] vm_eval.c:95 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_call0_cfunc_with_frame) vm_eval.c:97 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_call0_cfunc) vm_eval.c:109 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_call0_body) vm_eval.c:144 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_vm_call0) vm_eval.c:57 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_call0+0x6a) [0x7faa0e3efc7e] vm_eval.c:361 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_call) vm_eval.c:689 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(iterate_method) vm_eval.c:1406 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_iterate0+0xf8) [0x7faa0e3d74b8] vm_eval.c:1355 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_block_call_kw+0x53) [0x7faa0e3d7753] vm_eval.c:1434 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(enumerator_block_call+0x59) [0x7faa0e200049] enumerator.c:555 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_cfp_consistent_p+0x0) [0x7faa0e3e79e6] vm_eval.c:95 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_call0_cfunc_with_frame) vm_eval.c:97 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_call0_cfunc) vm_eval.c:109 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_call0_body) vm_eval.c:144 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_vm_call0) vm_eval.c:57 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_call0+0x6a) [0x7faa0e3efc7e] vm_eval.c:361 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_call) vm_eval.c:689 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(iterate_method) vm_eval.c:1406 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_iterate0+0xf8) [0x7faa0e3d74b8] vm_eval.c:1355 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_block_call+0x53) [0x7faa0e3d76e3] vm_eval.c:1420 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(imemo_count_value+0x0) [0x7faa0e1f43c3] enum.c:282 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(enum_count) enum.c:283 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_cfp_consistent_p+0x0) [0x7faa0e3d203c] vm_insnhelper.c:2898 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_call_cfunc_with_frame) vm_insnhelper.c:2900 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_sendish+0x366) [0x7faa0e3dc4e6] vm_insnhelper.c:4499 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_exec_core+0x9e) [0x7faa0e3df35e] insns.def:789 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_vm_exec+0x182) [0x7faa0e3e4812] vm.c:2163 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_yield+0x25a) [0x7faa0e3f20da] vm.c:1263 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_ary_collect+0x5c) [0x7faa0e17d67c] array.c:3635 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_cfp_consistent_p+0x0) [0x7faa0e3d203c] vm_insnhelper.c:2898 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_call_cfunc_with_frame) vm_insnhelper.c:2900 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_sendish+0x366) [0x7faa0e3dc4e6] vm_insnhelper.c:4499 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(vm_exec_core+0x10d) [0x7faa0e3df3cd] insns.def:770 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(rb_vm_exec+0x182) [0x7faa0e3e4812] vm.c:2163 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(thread_do_start_proc+0x2a9) [0x7faa0e39db19] thread.c:725 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(thread_do_start+0x66) [0x7faa0e39e057] thread.c:766 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(thread_start_func_2) thread.c:822 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(register_cached_thread_and_wait+0x0) [0x7faa0e39e9ca] thread_pthread.c:994 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0(thread_start_func_1) thread_pthread.c:1001 /lib64/libpthread.so.0(start_thread+0xe9) [0x7faa0e0eb3f9] /lib64/libc.so.6(clone+0x43) [0x7faa0de84b53] -- Other runtime information ----------------------------------------------- * Loaded script: ractor.rb * Loaded features: 0 enumerator.so 1 thread.rb 2 rational.so 3 complex.so 4 ruby2_keywords.rb 5 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/x86_64-linux/enc/encdb.so 6 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/x86_64-linux/enc/trans/transdb.so 7 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/x86_64-linux/rbconfig.rb 8 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/home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/version.rb 21 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/requirement.rb 22 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/specification.rb 23 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/util.rb 24 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/dependency.rb 25 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/core_ext/kernel_gem.rb 26 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/x86_64-linux/monitor.so 27 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/monitor.rb 28 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb 29 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/core_ext/kernel_warn.rb 30 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems.rb 31 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/path_support.rb 32 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/did_you_mean/version.rb 33 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/did_you_mean/core_ext/name_error.rb 34 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/did_you_mean/levenshtein.rb 35 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/did_you_mean/jaro_winkler.rb 36 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/did_you_mean/spell_checker.rb 37 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/did_you_mean/spell_checkers/name_error_checkers/class_name_checker.rb 38 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/did_you_mean/spell_checkers/name_error_checkers/variable_name_checker.rb 39 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/did_you_mean/spell_checkers/name_error_checkers.rb 40 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/did_you_mean/spell_checkers/method_name_checker.rb 41 /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/did_you_mean/spell_checkers/key_error_checker.rb 42 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7faa0e13a000-7faa0e16b000 r--p 00000000 fd:03 17434849 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0.0 7faa0e16b000-7faa0e407000 r-xp 00031000 fd:03 17434849 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0.0 7faa0e407000-7faa0e50f000 r--p 002cd000 fd:03 17434849 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0.0 7faa0e50f000-7faa0e510000 ---p 003d5000 fd:03 17434849 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0.0 7faa0e510000-7faa0e517000 r--p 003d5000 fd:03 17434849 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0.0 7faa0e517000-7faa0e51b000 rw-p 003dc000 fd:03 17434849 /home/fidalgo/.rbenv/versions/3.0.0/lib/libruby.so.3.0.0 7faa0e51b000-7faa0e52d000 rw-p 00000000 00:00 0 7faa0e52d000-7faa0e531000 r--p 00000000 00:00 0 [vvar] 7faa0e531000-7faa0e533000 r-xp 00000000 00:00 0 [vdso] 7faa0e533000-7faa0e534000 r--p 00000000 fd:01 3413984 /usr/lib64/ld-2.32.so 7faa0e534000-7faa0e555000 r-xp 00001000 fd:01 3413984 /usr/lib64/ld-2.32.so 7faa0e555000-7faa0e55e000 r--p 00022000 fd:01 3413984 /usr/lib64/ld-2.32.so 7faa0e55e000-7faa0e55f000 r--p 0002a000 fd:01 3413984 /usr/lib64/ld-2.32.so 7faa0e55f000-7faa0e561000 rw-p 0002b000 fd:01 3413984 /usr/lib64/ld-2.32.so 7ffd9d9fc000-7ffd9e1fb000 rw-p 00000000 00:00 0 [stack] ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] Aborted (core dumped) ``` And here success with debugging: ``` ruby -d ractor.rb Exception `LoadError' at /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems.rb:1348 - cannot load such file -- rubygems/defaults/operating_system Exception `LoadError' at /home/fidalgo/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems.rb:1356 - cannot load such file -- rubygems/defaults/ruby Combinations size:2118760 <internal:ractor>:267: warning: Ractor is experimental, and the behavior may change in future versions of Ruby! Also there are many implementation issues. Received combination size:264845 Received combination size:264845 Received combination size:264845 Received combination size:264845 Received combination size:264845 Received combination size:264845 Received combination size:264845 Received combination size:264845 476330 ```