- It is now possible, with the <literal>-I</literal> RTS flag,
- to control the amount of idle time that happens before a major
- GC is performed.
+ If the program is idle for a certain amount of time then GHC
+ will now take the opportunity to do a major garbage collection.
+ The amount of idle time that is required before that happens
+ is controlled by the new <literal>-I</literal> RTS flag.
+ There is more detail in <xref linkend="rts-options-gc" />.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ It is now possible to control the frequency that the RTS clock
+ ticks at with the new <literal>-V</literal> RTS flag. This is
+ normally handled automatically by other flags, but this flag
+ is needed if you want to increase the resolution of the time
+ profiler.
+ For more details see <xref linkend="rts-options-misc" />.