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Rename clerk and CDB Speed-Up

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CDB did many "bitty" reads/writes when scanning or writing hash tables -
change these to bult reads and writes to speed up.

CDB also added capabilities to fetch positions and get keys by position
to help with iclerk role.
This commit is contained in:
martinsumner 2016-09-20 16:13:36 +01:00
parent c10eaa75cb
commit aa7d235c4d
4 changed files with 225 additions and 44 deletions
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6
src/leveled_penciller.erl
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@ -251,7 +251,7 @@ init([PCLopts]) ->
M
end,
TID = ets:new(?MEMTABLE, [ordered_set]),
{ok, Clerk} = leveled_clerk:clerk_new(self()),
{ok, Clerk} = leveled_pclerk:clerk_new(self()),
InitState = #state{memtable=TID,
clerk=Clerk,
root_path=RootPath,
@ -435,7 +435,7 @@ terminate(_Reason, State) ->
%% The cast may not succeed as the clerk could be synchronously calling
%% the penciller looking for a manifest commit
%%
leveled_clerk:clerk_stop(State#state.clerk),
leveled_pclerk:clerk_stop(State#state.clerk),
Dump = ets:tab2list(State#state.memtable),
case {State#state.levelzero_pending,
get_item(0, State#state.manifest, []), length(Dump)} of
@ -499,7 +499,7 @@ push_to_memory(DumpList, State) ->
end,
%% Prompt clerk to ask about work - do this for every push_mem
ok = leveled_clerk:clerk_prompt(UpdState#state.clerk, penciller),
ok = leveled_pclerk:clerk_prompt(UpdState#state.clerk, penciller),
MemoryInsertion = do_push_to_mem(DumpList,
TableSize,