</sect2>
+ <sect2 id="rts-options-misc">
+ <title>Miscellaneous RTS options</title>
+
+ <variablelist>
+ <varlistentry>
+ <term><option>-V<replaceable>secs</replaceable></option>
+ <indexterm><primary><option>-V</option></primary><secondary>RTS
+ option</secondary></indexterm></term>
+ <listitem>
+ <para>Sets the interval that the RTS clock ticks at. The
+ runtime uses a single timer signal to count ticks; this timer
+ signal is used to control the context switch timer (<xref
+ linkend="using-concurrent" />) and the heap profiling
+ timer <xref linkend="rts-options-heap-prof" />. Also, the
+ time profiler uses the RTS timer signal directly to record
+ time profiling samples.</para>
+
+ <para>Normally, setting the <option>-V</option> option
+ directly is not necessary: the resolution of the RTS timer is
+ adjusted automatically if a short interval is requested with
+ the <option>-C</option> or <option>-i</option> options.
+ However, setting <option>-V</option> is required in order to
+ increase the resolution of the time profiler.</para>
+
+ <para>Using a value of zero disables the RTS clock
+ completetly, and has the effect of disabling timers that
+ depend on it: the context switch timer and the heap profiling
+ timer. Context switches will still happen, but
+ deterministically and at a rate much faster than normal.
+ Disabling the interval timer is useful for debugging, because
+ it eliminates a source of non-determinism at runtime.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>--install-signal-handlers=<replaceable>yes|no</replaceable></option>
+ <indexterm><primary><option>--install-signal-handlers</option></primary><secondary>RTS
+ option</secondary></indexterm></term>
+ <listitem>
+ <para>If yes (the default), the RTS installs signal handlers to catch
+ things like ctrl-C. This option is primarily useful for when
+ you are using the Haskell code as a DLL, and want to set your
+ own signal handlers.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </sect2>
+
<sect2 id="rts-options-gc">
<title>RTS options to control the garbage collector</title>
<varlistentry>
<term>
<option>-I</option><replaceable>seconds</replaceable>
- <indexterm><primary><option>-H</option></primary>
+ <indexterm><primary><option>-I</option></primary>
<secondary>RTS option</secondary>
</indexterm>
<indexterm><primary>idle GC</primary>
</sect2>
<sect2>
- <title>RTS options for profiling and Concurrent/Parallel Haskell</title>
+ <title>RTS options for profiling and parallelism</title>
<para>The RTS options related to profiling are described in <xref
- linkend="rts-options-heap-prof"/>; and those for concurrent/parallel
- stuff, in <xref linkend="parallel-rts-opts"/>.</para>
+ linkend="rts-options-heap-prof"/>, those for concurrency in
+ <xref linkend="using-concurrent" />, and those for parallelism in
+ <xref linkend="parallel-options"/>.</para>
</sect2>
<sect2 id="rts-options-debugging">