Redis Backplane Speed Tests

Profiles redis read speeds for data structures similar to backplane messages (maps)

Setup

1. Obtain a fresh redis database from 2012.46_RC_7 staging or production(slave), initialize and restart your local redis with it.

2. Initialize test data (only once):

   sbt run

runs com.janrain.redistest.ConvertFromBp, which creates a copy of each message it finds as:

• a redis map, prefixed with redisTest-msg-map-
• a plain string redis entry, prefixed with redisTest-msg-string-

also removes the expiry for all existing v1_message_* entries

Run tests

Adjust test size in Redistest.scala:

val testSize = 100000

Running all tests in one pass / same JVM instance with sbt test seems to favor the tests running last, so run them individually:

sbt
> test-only com.janrain.redistest.GetChannelLegacyDao

sbt
> test-only com.janrain.redistest.GetChannelJavaSerialized

sbt
> test-only com.janrain.redistest.GetChannelStringSerialized

sbt
> test-only com.janrain.redistest.GetChannelMapSerialized

executes and times Redistest.testSize "getChannelMessages" operations, using:

• legacy DAO: the actual BackplaneMessageDAO.getMessagesByChannel from the 2012.46_RC7 jar; this performs sorting (which the other tests do not do)

• JavaSerialized: reads the java serialized messages (from v1_message_* keys) and instantiates a BackplaneMessage from each serialized entry that is read

• StringSerialized: reads the string version the converted messages (from redisTest-msg-string-* keys)

• MapSerialized: reads the redis map version of the converted messages (from redisTest-msg-map-* keys) and executes .toString (prod would have to do toJsonString)