When checking the ACPI funciton of C-status, after 100 seconds sleep,
the sampling value of C0 status from the xenpm tool decreases.
Because C0=NOW()-C1-C2-C3-C4, when NOW() value is during idle time,
NOW() value is bigger than last C-status update time, and C0 value
is also bigger than ture
All accepted.
-Original Message-
From: Jan Beulich [mailto:jbeul...@suse.com]
Sent: Monday, May 4, 2015 10:01 PM
To: Han, Huaitong
Cc: xen-devel@lists.xen.org
Subject: Re: [V2] x86/cpuidle: get accurate C0 value with xenpm tool
On 04.05.15 at 15:23, huaitong@intel.com wrote:
On
On 04.05.15 at 15:23, huaitong@intel.com wrote:
On Mon, 2015-05-04 at 09:33 +0100, Jan Beulich wrote:
On 04.05.15 at 08:27, huaitong@intel.com wrote:
--- a/xen/arch/x86/acpi/cpu_idle.c
+++ b/xen/arch/x86/acpi/cpu_idle.c
@@ -254,9 +254,10 @@ static char* acpi_cstate_method_name[]
