[erlang-questions] couchdb performace 10x: using NIF for file io
Sun Oct 24 16:43:16 CEST 2010
On Oct 24, 2010, at 3:30 PM, Martin Scholl wrote:
> I'd guess this is because the NIF blocks the current VM thread instead
> of a dedicated I/O thread.
+A 4 is used by default and using +A 16 reduces the spikes
This is the latest 2.66ghz Core i7 MacBook Pro, 8gb memory and a 2 year-old 256gb Apple SSD.
The number of cores is reported as 2 but, obviously, a lot of threads end up waiting.
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