diff options
| -rw-r--r-- | lib/runtime_tools/src/erts_alloc_config.erl | 169 |
1 files changed, 113 insertions, 56 deletions
diff --git a/lib/runtime_tools/src/erts_alloc_config.erl b/lib/runtime_tools/src/erts_alloc_config.erl index 284e88d4a7..b9a26dc0dc 100644 --- a/lib/runtime_tools/src/erts_alloc_config.erl +++ b/lib/runtime_tools/src/erts_alloc_config.erl @@ -39,6 +39,8 @@ need_config_change, alloc_util, instances, + strategy, + acul, low_mbc_blocks_size, high_mbc_blocks_size, sbct, @@ -54,8 +56,6 @@ -define(SERVER, '__erts_alloc_config__'). --define(MAX_ALLOCATOR_INSTANCES, 16). - -define(KB, 1024). -define(MB, 1048576). @@ -99,23 +99,11 @@ {ets_alloc, 131072}, {fix_alloc, 131072}, {eheap_alloc, 524288}, - {ll_alloc, 2097152}, + {ll_alloc, 131072}, {sl_alloc, 131072}, {temp_alloc, 131072}, {driver_alloc, 131072}]). --define(MMMBC_DEFAULTS, - [{binary_alloc, 10}, - {std_alloc, 10}, - {ets_alloc, 10}, - {fix_alloc, 10}, - {eheap_alloc, 10}, - {ll_alloc, 0}, - {sl_alloc, 10}, - {temp_alloc, 10}, - {driver_alloc, 10}]). - - %%% %%% Exported interface %%% @@ -230,20 +218,72 @@ server_loop(State) -> end, server_loop(NewState). -allocator_instances(temp_alloc) -> - erlang:system_info(schedulers) + 1; -allocator_instances(ll_alloc) -> +carrier_migration_support(aoff) -> + true; +carrier_migration_support(aoffcbf) -> + true; +carrier_migration_support(aoffcaobf) -> + true; +carrier_migration_support(_) -> + false. + +allocator_instances(ll_alloc, Strategy) -> + case carrier_migration_support(Strategy) of + true -> erlang:system_info(schedulers); + false -> 1 + end; +allocator_instances(_A, undefined) -> 1; -allocator_instances(_Allocator) -> - case erlang:system_info(schedulers) of - Schdlrs when Schdlrs =< ?MAX_ALLOCATOR_INSTANCES -> Schdlrs; - _Schdlrs -> ?MAX_ALLOCATOR_INSTANCES +allocator_instances(_A, _Strategy) -> + erlang:system_info(schedulers). + +strategy(temp_alloc, _AI) -> + af; +strategy(A, AI) -> + try + {A, OptList} = lists:keyfind(A, 1, AI), + {as, S} = lists:keyfind(as, 1, OptList), + S + catch + _ : _ -> + undefined + end. + +strategy_str(af) -> + "A fit"; +strategy_str(gf) -> + "Good fit"; +strategy_str(bf) -> + "Best fit"; +strategy_str(aobf) -> + "Address order best fit"; +strategy_str(aoff) -> + "Address order first fit"; +strategy_str(aoffcbf) -> + "Address order first fit carrier best fit"; +strategy_str(aoffcaobf) -> + "Address order first fit carrier adress order best fit". + +default_acul(A, S) -> + case carrier_migration_support(S) of + false -> + 0; + true -> + case A of + ll_alloc -> 85; + eheap_alloc -> 45; + _ -> 60 + end end. - + make_state() -> + {_, _, _, AI} = erlang:system_info(allocator), #state{alloc = lists:map(fun (A) -> + S = strategy(A, AI), #alloc{name = A, - instances = allocator_instances(A)} + strategy = S, + acul = default_acul(A, S), + instances = allocator_instances(A, S)} end, ?ALLOCATORS)}. @@ -345,7 +385,7 @@ do_save_scenario(AlcList) -> conf_size(Bytes) when is_integer(Bytes), Bytes < 0 -> exit({bad_value, Bytes}); conf_size(Bytes) when is_integer(Bytes), Bytes < 1*?MB -> - ?ROUNDUP(?B2KB(Bytes), 128); + ?ROUNDUP(?B2KB(Bytes), 256); conf_size(Bytes) when is_integer(Bytes), Bytes < 10*?MB -> ?ROUNDUP(?B2KB(Bytes), ?B2KB(1*?MB)); conf_size(Bytes) when is_integer(Bytes), Bytes < 100*?MB -> @@ -376,28 +416,25 @@ mmbcs(#conf{format_to = FTO}, temp_alloc -> BlocksSize; _ -> BlocksSize div Insts end, - case BS > default_mmbcs(A, Insts) of - true -> + DefMMBCS = default_mmbcs(A, Insts), + case {Insts, BS > DefMMBCS} of + {1, true} -> MMBCS = conf_size(BS), fc(FTO, "Main mbc size of ~p kilobytes.", [MMBCS]), format(FTO, " +M~cmmbcs ~p~n", [alloc_char(A), MMBCS]); - false -> + _ -> + MMBCS = ?B2KB(DefMMBCS), + fc(FTO, "Main mbc size of ~p kilobytes.", [MMBCS]), + format(FTO, " +M~cmmbcs ~p~n", [alloc_char(A), MMBCS]), ok end. -smbcs_lmbcs_mmmbc(#conf{format_to = FTO}, - #alloc{name = A, instances = Insts, segments = Segments}) -> - MMMBC = case {A, Insts} of - {_, 1} -> Segments#segment.number; - {temp_alloc, _} -> Segments#segment.number; - _ -> (Segments#segment.number div Insts) + 1 - end, +smbcs_lmbcs(#conf{format_to = FTO}, + #alloc{name = A, segments = Segments}) -> MBCS = Segments#segment.size, AC = alloc_char(A), fc(FTO, "Mseg mbc size of ~p kilobytes.", [MBCS]), format(FTO, " +M~csmbcs ~p +M~clmbcs ~p~n", [AC, MBCS, AC, MBCS]), - fc(FTO, "Max ~p mseg mbcs.", [MMMBC]), - format(FTO, " +M~cmmmbc ~p~n", [AC, MMMBC]), ok. alloc_char(binary_alloc) -> $B; @@ -462,6 +499,8 @@ au_conf_alloc(#conf{format_to = FTO} = Conf, #alloc{name = A, alloc_util = true, instances = Insts, + acul = Acul, + strategy = Strategy, low_mbc_blocks_size = Low, high_mbc_blocks_size = High} = Alc) -> fcp(FTO, "Usage of mbcs: ~p - ~p kilobytes", [?B2KB(Low), ?B2KB(High)]), @@ -470,31 +509,49 @@ au_conf_alloc(#conf{format_to = FTO} = Conf, fc(FTO, "One instance used."), format(FTO, " +M~ct false~n", [alloc_char(A)]); _ -> - fc(FTO, "~p instances used.", + fc(FTO, "~p + 1 instances used.", [Insts]), - format(FTO, " +M~ct true~n", [alloc_char(A)]) - end, + format(FTO, " +M~ct true~n", [alloc_char(A)]), + case Strategy of + undefined -> + ok; + _ -> + fc(FTO, "Allocation strategy: ~s.", + [strategy_str(Strategy)]), + format(FTO, " +M~cas ~s~n", [alloc_char(A), + atom_to_list(Strategy)]) + end, + case carrier_migration_support(Strategy) of + false -> + ok; + true -> + fc(FTO, "Abandon carrier utilization limit of ~p%.", [Acul]), + format(FTO, " +M~cacul ~p~n", [alloc_char(A), Acul]) + end + end, mmbcs(Conf, Alc), - smbcs_lmbcs_mmmbc(Conf, Alc), + smbcs_lmbcs(Conf, Alc), sbct(Conf, Alc). -large_growth(Low, High) -> - High - Low >= ?LARGE_GROWTH_ABS_LIMIT. - calc_seg_size(Growth, Segs) -> conf_size(round(Growth*?FRAG_FACT*?GROWTH_SEG_FACT) div Segs). calc_growth_segments(Conf, AlcList0) -> - CalcSmall = fun (#alloc{name = ll_alloc} = Alc, Acc) -> - {Alc#alloc{segments = #segment{size = 0, + CalcSmall = fun (#alloc{name = ll_alloc, instances = 1} = Alc, Acc) -> + {Alc#alloc{segments = #segment{size = conf_size(0), number = 0}}, Acc}; (#alloc{alloc_util = true, - low_mbc_blocks_size = Low, + instances = Insts, + low_mbc_blocks_size = LowMBC, high_mbc_blocks_size = High} = Alc, {SL, AL}) -> + Low = case Insts of + 1 -> LowMBC; + _ -> 0 + end, Growth = High - Low, - case large_growth(Low, High) of + case Growth >= ?LARGE_GROWTH_ABS_LIMIT of true -> {Alc, {SL, AL+1}}; false -> @@ -522,8 +579,13 @@ calc_growth_segments(Conf, AlcList0) -> end, CalcLarge = fun (#alloc{alloc_util = true, segments = undefined, - low_mbc_blocks_size = Low, + instances = Insts, + low_mbc_blocks_size = LowMBC, high_mbc_blocks_size = High} = Alc) -> + Low = case Insts of + 1 -> LowMBC; + _ -> 0 + end, Growth = High - Low, SegSize = calc_seg_size(Growth, SegsPerAlloc), @@ -560,15 +622,10 @@ format_header(FTO) -> case erlang:system_info(schedulers) of 1 -> ok; Schdlrs -> - MinSchdlrs = case Schdlrs > ?MAX_ALLOCATOR_INSTANCES of - true -> ?MAX_ALLOCATOR_INSTANCES; - false -> Schdlrs - end, fcp(FTO, "NOTE: This configuration was made for ~p schedulers. " - "It is very important that at least ~p schedulers " - "are used.", - [Schdlrs, MinSchdlrs]) + "It is very important that ~p schedulers are used.", + [Schdlrs, Schdlrs]) end, fcp(FTO, "This configuration is intended as a suggestion and " |