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-rw-r--r--doc/apps/speed.pod12
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/apps/speed.pod b/doc/apps/speed.pod
index 77560f1c3d..8101851ec6 100644
--- a/doc/apps/speed.pod
+++ b/doc/apps/speed.pod
@@ -7,6 +7,7 @@ speed - test library performance
=head1 SYNOPSIS
B<openssl speed>
+[B<-engine id>]
[B<md2>]
[B<mdc2>]
[B<md5>]
@@ -39,6 +40,17 @@ This command is used to test the performance of cryptographic algorithms.
=head1 OPTIONS
+=over 4
+
+=item B<-engine id>
+
+specifying an engine (by it's unique B<id> string) will cause B<speed>
+to attempt to obtain a functional reference to the specified engine,
+thus initialising it if needed. The engine will then be set as the default
+for all available algorithms.
+
+=item B<[zero or more test algorithms]>
+
If any options are given, B<speed> tests those algorithms, otherwise all of
the above are tested.