Hi, On 20 Dec 2010, at 22:32, Chenini, Mohamed wrote:
> Hi, > > I found this info on the net at > http://www.slideshare.net/danglbl/schemaless-databases > [...] > Does anyone knows if this was verified? I think the author's comment on slide 35 sums it up pretty nicely: "Of course this is just one (lame) test." Coming up good numbers is hard which means that people with easy ways to make them come up with bad ones. I've written about the difficulties on benchmarks databases on my blog: http://jan.prima.de/~jan/plok/archives/175-Benchmarks-You-are-Doing-it-Wrong.html http://jan.prima.de/~jan/plok/archives/176-Caveats-of-Evaluating-Databases.html They should give you a few pointers on why this is hard. -- To the point: CouchDB generally performs best with concurrent load. In the case of loading data into CouchDB, bulk requests* will speed up things again. To push CouchDB to a write limit, you want to use concurrent bulk requests (specific numbers will depend on your data and hardware). * http://wiki.apache.org/couchdb/HTTP_Bulk_Document_API Unfortunately this means that these one-off benchmarks don't show any good numbers for CouchDB, yet fortunately this shows easily that these one-off benchmarks don't really reflect common real-world usage and should be discouraged. Hope that helps, let us know if you have any more questions :) Cheers Jan --
