Document that Solaris can't use effective_io_concurrency because of an

ineffective posix_fadvise().

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 9b58c554d42d9d36c9d8bd6367b73aa59b9d9ee5..dcc65f1f894b0a8d54a05b3ef8093859d0dfbd0c 100644 (file)
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -1253,8 +1253,7 @@ SET ENABLE_SEQSCAN TO OFF;
          function, which some operating systems lack.  If the function is not
          present then setting this parameter to anything but zero will result
          in an error.  On some operating systems the function is present but
-         does not actually do anything.  On such systems setting a nonzero
-         value will add CPU overhead without improving performance.
+         does not actually do anything (e.g. Solaris).
         </para>
        </listitem>
       </varlistentry>