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-rw-r--r--docs/users_guide/runtime_control.rst4
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/users_guide/runtime_control.rst b/docs/users_guide/runtime_control.rst
index f94c584690..2cf277176d 100644
--- a/docs/users_guide/runtime_control.rst
+++ b/docs/users_guide/runtime_control.rst
@@ -1161,6 +1161,10 @@ When the program is linked with the :ghc-flag:`-eventlog` option
- ``g`` — GC events, including GC start/stop. Enabled by default.
+ - ``n`` — non-moving garbage collector (see :rts-flag:`--nonmoving-gc`)
+ events including start and end of the concurrent mark and census
+ information to characterise heap fragmentation. Disabled by default.
+
- ``p`` — parallel sparks (sampled). Enabled by default.
- ``f`` — parallel sparks (fully accurate). Disabled by default.