From: "Zhai, Edwin" <edwin.zhai@intel.com>
To: Keir Fraser <keir.fraser@eu.citrix.com>
Cc: Xen Developers <xen-devel@lists.xensource.com>,
"Zhai, Edwin" <edwin.zhai@intel.com>
Subject: [PATCH] [VMX] Change the default PLE_Gap
Date: Wed, 12 May 2010 08:46:12 +0800 [thread overview]
Message-ID: <4BE9FA54.4060802@intel.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 209 bytes --]
Changed the default PLE_Gap to 128 for
1. not using odd number like 41
2. getting a little bit more PLE vmexits to improve performance
Signed-off-by: Zhai Edwin <edwin.zhai@intel.com>
--
best rgds,
edwin
[-- Attachment #2: change_def_ple_gap.patch --]
[-- Type: text/plain, Size: 790 bytes --]
Changed the default PLE_Gap to 128 for
1. not using odd number like 41
2. getting a little bit more PLE vmexits to improve performance
Signed-off-by: Zhai Edwin <edwin.zhai@intel.com>
diff -r d77a88f938c6 xen/arch/x86/hvm/vmx/vmcs.c
--- a/xen/arch/x86/hvm/vmx/vmcs.c Tue May 11 14:05:28 2010 +0100
+++ b/xen/arch/x86/hvm/vmx/vmcs.c Wed May 12 08:27:00 2010 +0800
@@ -53,7 +53,7 @@ boolean_param("unrestricted_guest", opt_
* Time is measured based on a counter that runs at the same rate as the TSC,
* refer SDM volume 3b section 21.6.13 & 22.1.3.
*/
-static unsigned int __read_mostly ple_gap = 41;
+static unsigned int __read_mostly ple_gap = 128;
integer_param("ple_gap", ple_gap);
static unsigned int __read_mostly ple_window = 4096;
integer_param("ple_window", ple_window);
[-- Attachment #3: Type: text/plain, Size: 138 bytes --]
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