[PATCH] update Kconfig comment for NR_CPUS

From: Jesse Barnes <jbarnes_at_sgi.com>
Date: 2003-09-10 09:57:03
Noticed this when I built a kernel for a 256p machine.

Jesse

===== arch/ia64/Kconfig 1.42 vs edited =====
--- 1.42/arch/ia64/Kconfig	Mon Sep  8 16:15:14 2003
+++ edited/arch/ia64/Kconfig	Tue Sep  9 16:55:14 2003
@@ -424,9 +424,15 @@
 	  support" (CONFIG_PROC_FS) is enabled, too.
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-64)"
+	int "Maximum number of CPUs"
 	depends on SMP
 	default "64"
+	help
+	  You should set this to the number of CPUs in your system, but
+	  keep in mind that a kernel compiled for e.g. 2 CPUs will boot but
+	  only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
+	  than 64 will cause the use of a CPU mask array, causing a small
+	  performance hit.
 
 source "fs/Kconfig.binfmt"
 
-
To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Received on Tue Sep 9 20:02:38 2003

This archive was generated by hypermail 2.1.8 : 2005-08-02 09:20:17 EST