Document NIX_SHOW_STATS and NIX_COUNT_CALLS
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@ -312,6 +312,24 @@ $ mount -o bind /mnt/otherdisk/nix /nix</screen>
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<varlistentry><term><envar>NIX_SHOW_STATS</envar></term>
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<listitem><para>If set to <literal>1</literal>, Nix will print some
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evaluation statistics, such as the number of values
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allocated.</para></listitem>
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</varlistentry>
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<varlistentry><term><envar>NIX_COUNT_CALLS</envar></term>
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<listitem><para>If set to <literal>1</literal>, Nix will print how
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often functions were called during Nix expression evaluation. This
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is useful for profiling your Nix expressions.</para></listitem>
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</varlistentry>
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<varlistentry><term><envar>GC_INITIAL_HEAP_SIZE</envar></term>
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<varlistentry><term><envar>GC_INITIAL_HEAP_SIZE</envar></term>
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<listitem><para>If Nix has been configured to use the Boehm garbage
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<listitem><para>If Nix has been configured to use the Boehm garbage
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