Implement recommendations from low-level performance study (undocument compress levels 7-9 in the GUI, since they do nothing but increase CPU usage, set the default compress level to 1, and include a note that levels higher than 3 are rarely useful)


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4632 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/vncviewer/OptionsDialog.cxx b/vncviewer/OptionsDialog.cxx
index 73ff551..20465b5 100644
--- a/vncviewer/OptionsDialog.cxx
+++ b/vncviewer/OptionsDialog.cxx
@@ -511,7 +511,7 @@
 
   compressionInput = new Fl_Int_Input(tx + INDENT, ty,
                                       INPUT_HEIGHT, INPUT_HEIGHT,
-                                      _("level (1=fast, 9=best)"));
+                                      _("level (1=fast, 6=best [4-6 are rarely useful])"));
   compressionInput->align(FL_ALIGN_RIGHT);
   ty += INPUT_HEIGHT + INNER_MARGIN;