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Change so that type of cache is parameterised

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The Tree doesn't seem to be better than the skiplist.  Get ready to make
this switchable
This commit is contained in:
martinsumner 2017-01-21 11:38:26 +00:00
parent 4846272393
commit ed96d0ca7a
5 changed files with 48 additions and 30 deletions
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8
src/leveled_pmem.erl
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@ -188,7 +188,7 @@ generate_randomkeys(Seqn, Count, BucketRangeLow, BucketRangeHigh) ->
[],
BucketRangeLow,
BucketRangeHigh),
leveled_tree:from_orderedlist(lists:ukeysort(1, KVL)).
leveled_tree:from_orderedlist(lists:ukeysort(1, KVL), ?CACHE_TYPE).
generate_randomkeys(_Seqn, 0, Acc, _BucketLow, _BucketHigh) ->
Acc;
@ -277,13 +277,13 @@ compare_method_test() ->
end,
[],
DumpList),
Tree = leveled_tree:from_orderedlist(lists:ukeysort(1, Q0)),
Tree = leveled_tree:from_orderedlist(lists:ukeysort(1, Q0), ?CACHE_TYPE),
Sz0 = leveled_tree:tsize(Tree),
io:format("Crude method took ~w microseconds resulting in tree of " ++
"size ~w~n",
[timer:now_diff(os:timestamp(), SWa), Sz0]),
SWb = os:timestamp(),
Q1 = merge_trees(StartKey, EndKey, TreeList, leveled_tree:empty()),
Q1 = merge_trees(StartKey, EndKey, TreeList, leveled_tree:empty(?CACHE_TYPE)),
Sz1 = length(Q1),
io:format("Merge method took ~w microseconds resulting in tree of " ++
"size ~w~n",
@ -300,7 +300,7 @@ with_index_test() ->
fun(_X, {{LedgerSQN, L0Size, L0TreeList}, L0Idx, SrcList}) ->
LM1 = generate_randomkeys_aslist(LedgerSQN + 1, 2000, 1, 500),
LM1Array = lists:foldl(IndexPrepareFun, new_index(), LM1),
LM1SL = leveled_tree:from_orderedlist(lists:ukeysort(1, LM1)),
LM1SL = leveled_tree:from_orderedlist(lists:ukeysort(1, LM1), ?CACHE_TYPE),
UpdL0Index = add_to_index(LM1Array, L0Idx, length(L0TreeList) + 1),
R = add_to_cache(L0Size,
{LM1SL, LedgerSQN + 1, LedgerSQN + 2000},