patch for "swap insanity" probrem

mysql55_numactl.patch

--- /usr/bin/mysqld_safe.orig   2011-05-12 03:14:52.000000000 +0900
+++ /usr/bin/mysqld_safe        2011-06-07 11:02:49.000000000 +0900
@@ -727,6 +727,10 @@
 
 cmd="`mysqld_ld_preload_text`$NOHUP_NICENESS"
 
+# Start mysqld with memory allocations interleaved to avoid swapping
+# on NUMA-based architectures.  Should be harmless on non-NUMA.
+cmd="/usr/bin/numactl --interleave all $cmd" 
+
 for i in  "$ledir/$MYSQLD" "$defaults" "--basedir=$MY_BASEDIR_VERSION" \
   "--datadir=$DATADIR" "--plugin-dir=$plugin_dir" "$USER_OPTION"
 do