-\fBmajor=\fIcollector\fR Specifies which major collector to use.
-Options are `marksweep' for the Mark&Sweep collector, and
-`marksweep-conc' for concurrent Mark&Sweep. The non-concurrent
-Mark&Sweep collector is the default.
+\fBmajor=\fIcollector\fR
+Specifies which major collector to use.
+Options are `marksweep' for the Mark&Sweep collector, `marksweep-conc'
+for concurrent Mark&Sweep and `marksweep-conc-par' for parallel and
+concurrent Mark&Sweep. The concurrent Mark&Sweep collector is the default.
+.TP
+\fBmode=balanced|throughput|pause\fR[:\fImax-pause\fR]
+Specifies what should be the garbage collector's target. The `throughput'
+mode aims to reduce time spent in the garbage collector and improve
+application speed, the `pause' mode aims to keep pause times to a minimum
+and it receives the argument \fImax-pause\fR which specifies the maximum
+pause time in milliseconds that is acceptable and the `balanced' mode
+which is a general purpose optimal mode.