Various RT doc fixes

RT1556: doc/crypto/threads.pod
RT2024: Missing pages mentioned in crypto.pod
RT2890: Wrong size in ERR_string_error description.
RT3461: Better description of PEM Encryption
        (Jeffrey Walton <noloader@gmail.com>)
        Also, fix up formatting and removed some code examples
        that encourage unsafe patterns, like unencrypted private
        keys (Rich Salz)
RT4240: Document some speed flags (Tomas Mraz <tmraz@redhat.com>)
RT4260: Fix return value doc for X509_REQ_sign and X509_sign
        (Laetitia Baudoin <lbaudoin@google.com>)

Reviewed-by: Emilia Käsper <emilia@openssl.org>

1 files changed, 16 insertions, 0 deletions

diff --git a/doc/apps/speed.pod b/doc/apps/speed.pod
index 1cd1998d16..a2957095ba 100644
--- a/doc/apps/speed.pod
+++ b/doc/apps/speed.pod
@@ -8,6 +8,9 @@ speed - test library performance
 
 B<openssl speed>
 [B<-engine id>]
+[B<-elapsed>]
+[B<-evp algo>]
+[B<-decrypt>]
 [B<md2>]
 [B<mdc2>]
 [B<md5>]
@@ -49,6 +52,19 @@ 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<-elapsed>
+
+Measure time in real time instead of CPU time. It can be useful when testing
+speed of hardware engines.
+
+=item B<-evp algo>
+
+Use the specified cipher or message digest algorithm via the EVP interface.
+
+=item B<-decrypt>
+
+Time the decryption instead of encryption. Affects only the EVP testing.
+
 =item B<[zero or more test algorithms]>
 
 If any options are given, B<speed> tests those algorithms, otherwise all of