linux-kernel - [PATCH 20/20] UML

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Date:	Thu, 17 Jan 2008 16:40:50 -0500
From:	Jeff Dike <jdike@...toit.com>
To:	Andrew Morton <akpm@...l.org>
Cc:	uml-devel <user-mode-linux-devel@...ts.sourceforge.net>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 20/20] UML - defconfig tweaks

Tweak the UML defconfig -
      we probably don't need 256 old-style ptys - this slows down udev
noticably
      enable hostfs
      disable slab debugging - another noticable performance hit

Signed-off-by: Jeff Dike <jdike@...ux.intel.com>
---
 arch/um/defconfig |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Index: linux-2.6.22/arch/um/defconfig
===================================================================
--- linux-2.6.22.orig/arch/um/defconfig	2008-01-17 14:39:06.000000000 -0500
+++ linux-2.6.22/arch/um/defconfig	2008-01-17 14:40:07.000000000 -0500
@@ -75,7 +75,7 @@ CONFIG_LD_SCRIPT_DYN=y
 CONFIG_NET=y
 CONFIG_BINFMT_ELF=y
 CONFIG_BINFMT_MISC=m
-# CONFIG_HOSTFS is not set
+CONFIG_HOSTFS=y
 # CONFIG_HPPFS is not set
 CONFIG_MCONSOLE=y
 CONFIG_MAGIC_SYSRQ=y
@@ -185,7 +185,7 @@ CONFIG_CON_CHAN="xterm"
 CONFIG_SSL_CHAN="pts"
 CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
+CONFIG_LEGACY_PTY_COUNT=32
 # CONFIG_WATCHDOG is not set
 CONFIG_UML_SOUND=m
 CONFIG_SOUND=m
@@ -505,7 +505,7 @@ CONFIG_DEBUG_KERNEL=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHEDSTATS is not set
-CONFIG_DEBUG_SLAB=y
+# CONFIG_DEBUG_SLAB is not set
 # CONFIG_DEBUG_SLAB_LEAK is not set
 # CONFIG_DEBUG_MUTEXES is not set
 # CONFIG_DEBUG_SPINLOCK is not set
--
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