Comments on: Document-oriented Database Shootout Part 2: Performance

By: Andy

Andy — Fri, 04 Jun 2010 14:17:27 +0000

You feed items one by one in Tokyo but it has the “putlist” command; I wonder if that would speed things up. Or did I miss something?

By: EH

EH — Thu, 25 Mar 2010 20:03:31 +0000

“The reason my benchmarks are running faster is the extra 1 GB of RAM on my system; MongoDB uses memory-mapped files, which can take advantage of the extra RAM.”

You’ll probably also get a speedup if you run from Linux or Solaris.

By: Kyle

Kyle — Mon, 26 Oct 2009 21:31:47 +0000

Mike,

Some pretty significant gains can be made for MongoDB by reducing the batch size to 500, upgrading the driver to 0.16, and running a rehearsal benchmark:

MongoDB
create (26.27)

CouchDB
create (37.97)

http://gist.github.com/219053

The reason my benchmarks are running faster is the extra 1 GB of RAM on my system; MongoDB uses memory-mapped files, which can take advantage of the extra RAM.

By: mperham

mperham — Sun, 18 Oct 2009 03:28:58 +0000

Kyle, I’m using a unibody MBP 2.4Ghz with 2gb of RAM and Snow Leopard with the default Ruby.

By: Kyle

Kyle — Sun, 18 Oct 2009 02:01:03 +0000

Just ran your tests for MongoDB and CouchDB on a Macbook Pro 2.4 GHz Core 2 Duo. The MongoDB ‘create’ tests were somewhat faster than the Couch tests on my system:

MongoDB
create (32.836103)

CouchDB
create (36.972354)

More details at http://gist.github.com/212516

Can you include some info about the system you’re using to run the tests?

By: Moritz U.

Moritz U. — Sat, 17 Oct 2009 23:59:53 +0000

Why couldn’t you try delete on CouchDB? Should be really easy if you know the ids of the documents.

Also: The view-concept is really easy. Just write a small javascript-function which emit()’s the document if it matches your needs.
I think some people could help you, if you show an example of the query you used.

Greetings,
Moritz

By: Flinn

Flinn — Sat, 17 Oct 2009 05:07:25 +0000

Init time is actually better than the above with a clean tct file:

Using ruby-tokyotyrant 0.2.0
                user     system      total        real
init        0.000000   0.000000   0.000000 (  0.083591)
create      5.180000   0.120000   5.300000 (  7.102129)
query       0.000000   0.000000   0.000000 (  0.071614)
delete      0.000000   0.000000   0.000000 (  0.433987)

By: Flinn

Flinn — Sat, 17 Oct 2009 05:04:31 +0000

http://github.com/actsasflinn/docdb_shootout

Using ruby-tokyotyrant 0.2.0
                user     system      total        real
init        0.000000   0.000000   0.000000 (  1.004962)
create      5.240000   0.140000   5.380000 (  7.333825)
query       0.000000   0.000000   0.000000 (  0.072963)
delete      0.000000   0.000000   0.000000 (  0.446835)