Minor edits

doc/src/sgml/runtime.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/runtime.sgml,v 1.379 2007/03/06 09:54:23 petere Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/runtime.sgml,v 1.380 2007/03/06 09:59:22 petere Exp $ -->
 
 <chapter Id="runtime">
  <title>Operating System Environment</title>
@@ -663,6 +663,26 @@ psql: could not connect to server: No such file or directory
 
 
     <variablelist>
+     <varlistentry>
+      <term><systemitem class="osname">AIX</></term>
+      <indexterm><primary>AIX</><secondary>IPC configuration</></>
+      <listitem>
+       <para>
+        At least as of version 5.1, it should not be necessary to do
+        any special configuration for such parameters as
+        <varname>SHMMAX</varname>, as it appears this is configured to
+        allow all memory to be used as shared memory.  That is the
+        sort of configuration commonly used for other databases such
+        as <application>DB/2</application>.</para>
+
+       <para> It might , however, be necessary to modify the global
+       <command>ulimit</command> information in
+       <filename>/etc/security/limits</filename>, as the default hard
+       limits for file sizes (<varname>fsize</varname>) and numbers of
+       files (<varname>nofiles</varname>) might be too low.
+       </para>
+      </listitem>
+     </varlistentry>      
 
      <varlistentry>
       <term><systemitem class="osname">BSD/OS</></term>
@@ -846,10 +866,10 @@ options        SEMMAP=256
       <listitem>
        <para>
         The default settings are only suitable for small installations 
-        (the default max segment size is 32 MB). However the remaining
+        (the default maximum segment size is 32 MB). However, the remaining
         defaults are quite generously sized, and usually do not require
-        changes. The max segment size can be changed via the 
-        <command>sysctl</command> interface. For example, to allow 128 MB, 
+        changes. The maximum shared memory segment size can be changed via the 
+        <command>sysctl</command> interface.  For example, to allow 128 MB, 
         and explicitly set the maximum total shared memory size to 2097152 
         pages (the default):
 <screen>
@@ -958,26 +978,6 @@ kern.sysv.shmall=1024
       </listitem>
      </varlistentry>
 
-     <varlistentry>
-      <term><systemitem class="osname">AIX</></term>
-      <indexterm><primary>AIX</><secondary>IPC configuration</></>
-      <listitem>
-       <para>
-        At least as of version 5.1, it should not be necessary to do
-        any special configuration for such parameters as
-        <varname>SHMMAX</varname>, as it appears this is configured to
-        allow all memory to be used as shared memory.  That is the
-        sort of configuration commonly used for other databases such
-        as <application>DB/2</application>.</para>
-
-       <para> It might , however, be necessary to modify the global
-       <command>ulimit</command> information in
-       <filename>/etc/security/limits</filename>, as the default hard
-       limits for file sizes (<varname>fsize</varname>) and numbers of
-       files (<varname>nofiles</varname>) might be too low.
-       </para>
-      </listitem>
-     </varlistentry>      
 
      <varlistentry>
       <term><systemitem class="osname">Solaris</></term>
@@ -1068,12 +1068,12 @@ set semsys:seminfo_semmsl=32
 
       <row>
        <entry><xref linkend="guc-shared-buffers"></>
-       <entry>8300 (assuming 8K <symbol>BLCKSZ</>)</entry>
+       <entry>8300 (assuming 8 kB <symbol>BLCKSZ</>)</entry>
       </row>
 
       <row>
        <entry><xref linkend="guc-wal-buffers"></>
-       <entry>8200 (assuming 8K <symbol>XLOG_BLCKSZ</>)</entry>
+       <entry>8200 (assuming 8 kB <symbol>XLOG_BLCKSZ</>)</entry>
       </row>
 
       <row>