NativeCompute Timing: Use real, not user time

User time is unreliable for `native_compute`.

Also output time spent in conversion to native code, just in case that
is ever slow.

Note that this also removes spurious newlines in the output.

Fixes #11962

1 files changed, 4 insertions, 2 deletions

diff --git a/doc/sphinx/proof-engine/tactics.rst b/doc/sphinx/proof-engine/tactics.rst
index 6a280b74c2..7da453b7af 100644
--- a/doc/sphinx/proof-engine/tactics.rst
+++ b/doc/sphinx/proof-engine/tactics.rst
@@ -3134,8 +3134,10 @@ the conversion in hypotheses :n:`{+ @ident}`.
    .. flag:: NativeCompute Timing
 
       This flag causes all calls to the native compiler to print
-      timing information for the compilation, execution, and
-      reification phases of native compilation.
+      timing information for the conversion to native code,
+      compilation, execution, and reification phases of native
+      compilation.  Timing is printed in units of seconds of
+      wall-clock time.
 
    .. flag:: NativeCompute Profiling