Command line XPL help

I am running xpl using command line tool.

xpl is interacting with web service, I was expecting the response display on standard output. But below is the message I got

Initializing Resource Manager with: {oxf.resources.factory=org.orbeon.oxf.resources.PriorityResourceManagerFactory, oxf.resources.priori
n.oxf.resources.FilesystemResourceManagerFactory, oxf.resources.priority.2=org.orbeon.oxf.resources.ClassLoaderResourceManagerFactory}
2012-05-04 17:32:34,451 INFO  org.orbeon.oxf.main.OPS  - Running processor
2012-05-04 17:32:34,520 INFO  org.orbeon.oxf.main.OPS  - / - Timing: 69 - Cache hits for cache.main: 1, fault: 4, adds: 4, expirations:e: 20%

Can anybody please explain what is meaning of last line mainly

Timing: 69 - Cache hits for cache.main: 1, fault: 4, adds: 4, expirations:e: 20%

I got it working.
I have to Serialize response.