</listitem>
</varlistentry>
<varlistentry>
-<term><option>-C[<us>]</option>:</term>
+<term><option>-C[<s>]</option>:</term>
<listitem>
<para>
-<indexterm><primary>-C<us> RTS option</primary></indexterm> Sets
+<indexterm><primary>-C<s> RTS option</primary></indexterm> Sets
the context switch interval to <literal><s></literal> seconds.
A context switch will occur at the next heap block allocation after
the timer expires (a heap block allocation occurs every 4k of
allocation). With <option>-C0</option> or <option>-C</option>,
context switches will occur as often as possible (at every heap block
-allocation). By default, context switches occur every 20ms
-milliseconds. Note that GHC's internal timer ticks every 20ms, and
+allocation). By default, context switches occur every 20ms. Note that GHC's internal timer ticks every 20ms, and
the context switch timer is always a multiple of this timer, so 20ms
is the maximum granularity available for timed context switches.
</para>