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From "Chris Anderson" <>
Subject Re: Write Performance
Date Thu, 08 Jan 2009 01:04:20 GMT
On Wed, Jan 7, 2009 at 4:55 PM, Josh Bryan <> wrote:
> System 2:
> Intel(R) Pentium(R) D CPU 3.00GHz
> 3 GB ram
> Erlang (BEAM) emulator version 5.5.5 [source] [async-threads:0]
> [kernel-poll:false]
> couchdb - Apache CouchDB 0.9.0a724455-incubating

There have been signficant performance enhancements since r724455, and
the version of Erlang on this box looks old enough to have performance
problems as well.

"Can you make sure you are running on Erlang R12B-4 or newer?" -- Jan

If you get updated to a more recent Erlang, and update CouchDB via
svn, you can expect a substantial performance boost. Please let us
know how that works out.

If you'd like a technical look at why CouchDB's reduce values should
not grow in size faster than roughly O(log N), see this great blog


Chris Anderson

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