On Thu, Oct 22, 2009 at 5:12 PM, Paul Davis <[email protected]> wrote: > Fabio, > > There are about four things that will slow view generation down from > the _bulk_docs rate: > > 1. JSON conversion (twice) when passing data to the view process > 2. Collation of keys on tree insertion > 3. I/O (Disk and stdio) > 4. Memory thresholds > > Things like native views will give noticeable speed improvements > because it avoids JSON serialization and transfer over stdio. The > other (theoretically) tunable parameter is the memory threshold that > triggers flushes to disk. Its not currently configurable by the client > (requires a rebuild of couchdb) and as such I haven't seen anyone > attempt to tune it.
Thanks fro the answer, so I see that there are considerable margins for improvements, because ideally the index re-generation should be bound by disk speed once all possible optimizations are kicked in (except some pathological situations such as an application I have which stores chunks of xml in document strings, obliging double parsing in order to process them ;)) bye -- Fabio Forno, Bluendo srl http://www.bluendo.com jabber id: [email protected]
