It could be argued that this is a poor reason to switch from Erlang to C -- this is a problem with how binaries are handled in user code, not something intrinsic to Erlang VM.
Generally, the write amplification will be < 7 (max # of levels), but in practice is probably ~3.5 since it's possible for files/keys to get promoted across multiple levels under some circumstances. I haven't…
Actually, couchbase is exactly the opposite: it's membase with riak bolted on. (Which is arguably worse, IMNSHO) :)
It could be argued that this is a poor reason to switch from Erlang to C -- this is a problem with how binaries are handled in user code, not something intrinsic to Erlang VM.
Generally, the write amplification will be < 7 (max # of levels), but in practice is probably ~3.5 since it's possible for files/keys to get promoted across multiple levels under some circumstances. I haven't…
Actually, couchbase is exactly the opposite: it's membase with riak bolted on. (Which is arguably worse, IMNSHO) :)