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Java / Garbage collection

What are the 2 JVM tuning parameters for parallel collector?

Maximum Pause Time Goal is the duration during which the garbage collector stops the application and recovers space that is no longer in use. The intent of the maximum pause time goal is to limit the longest of these pauses.

The maximum pause time goal is specified with the command-line option -XX:MaxGCPauseMillis=<nnn>. This is interpreted as a hint to the garbage collector that pause times of nnn milliseconds or less are desired.

The throughput goal is measured in terms of the time spent collecting garbage and the time spent outside of garbage collection (referred to as application time). The goal is specified by the command-line option -XX:GCTimeRatio=<nnn>.

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