[erlang-questions] ets:lookup() versus mnesia:ets()
Paulo Sérgio Almeida
Thu May 10 20:24:21 CEST 2007
Ulf, thanks for the prompt reply.
Ulf Wiger (TN/EAB) wrote:
> Sure, it has been done. You seem to be aware of
> the drawbacks.
Do you mean, that apart from being bad software enginnering, it will be
as safe as using mnesia:ets/1, if mnesia keeps using ets for its
> mnesia:ets(fun/0) was created to avoid this very
> thing, assuming that it wouldn't matter for most
> people that it'd cost a couple of micros extra.
> Even better than mnesia:ets/1 is to use
> mnesia:activity(Type, fun/0),
> where Type can be set to ets, async_dirty, sync_dirty,
> etc., giving you a wider array of dirtiness to choose
Ok. Btw, I tested mnesia:activity(ets, ...) but the runtime is similar
to mnesia:ets, even a bit slower (5 microseconds instead of 4).
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