Update shared memory docs.

diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml
index 099dd323cded55f98092d35cb198b2d69071e2ce..10595e1ae4098a11d559c13127bb62df733735f1 100644 (file)
--- a/doc/src/sgml/runtime.sgml
+++ b/doc/src/sgml/runtime.sgml
@@ -1,5 +1,5 @@
 
 
 
@@ -1449,13 +1449,13 @@ env PGOPTIONS='-c geqo=off' psql
       
        SHMMAX
        Maximum size of shared memory segment (bytes)
-       700 kB + 8192 * buffers + extra ... infinity
+       250 kB + 8192 * buffers or infinity
       
 
       
        SHMMIN
        Minimum size of shared memory segment (bytes)
-       1 (at most about 256 kB)
+       1
       
 
       
@@ -1473,7 +1473,7 @@ env PGOPTIONS='-c geqo=off' psql
        
         SHMMNI
         Maximum number of shared memory segments system-wide
-        like SHMSEG + room for other applications
+        like SHMSEG plus room for other applications