[Valgrind-developers] valgrind: r8335 - trunk/exp-drd/docs

[<sv...@va...>]

Author: bart
Date: 2008-07-02 12:50:37 +0100 (Wed, 02 Jul 2008)
New Revision: 8335

Log:
Added a few extra notes.

Modified:
   trunk/exp-drd/docs/drd-manual.xml


Modified: trunk/exp-drd/docs/drd-manual.xml
===================================================================
--- trunk/exp-drd/docs/drd-manual.xml	2008-07-02 11:47:46 UTC (rev 8334)
+++ trunk/exp-drd/docs/drd-manual.xml	2008-07-02 11:50:37 UTC (rev 8335)
@@ -1074,6 +1074,12 @@
 </para>
 
 <para>
+Note: DRD reports errors on the <literal>libgomp</literal> library
+included with gcc 4.2.0 up to and including 4.3.1. This might indicate
+a race condition in the POSIX version of <literal>libgomp</literal>.
+</para>
+
+<para>
 For more information about OpenMP, see also 
 <ulink url="http://openmp.org/">openmp.org</ulink>.
 </para>
@@ -1099,6 +1105,15 @@
   </listitem>
   <listitem>
     <para>
+      Most applications will run between 20 and 100 times slower under
+      DRD than natively. Applications which perform very much mutex
+      lock / unlock operations however will run too slow to be usable
+      under DRD. Examples are Firefox and Nautilus. This will be
+      addressed in a future DRD version.
+    </para>
+  </listitem>
+  <listitem>
+    <para>
       Of the two POSIX threads implementations for Linux, only the
       NPTL (Native POSIX Thread Library) is supported. The older
       LinuxThreads library is not supported.
@@ -1128,11 +1143,18 @@
   </listitem>
   <listitem>
     <para>
+      When address tracing is enabled, no information on atomic stores
+      will be displayed. This functionality is easy to add
+      however. Please contact the Valgrind authors if you would like
+      to see this functionality enabled.
+    </para>
+  </listitem>
+  <listitem>
+    <para>
       If you compile the DRD source code yourself, you need gcc 3.0 or
       later. gcc 2.95 is not supported.
     </para>
   </listitem>
-
 </itemizedlist>
 
 </sect1>