-Original Message-
From: Jan Beulich [mailto:jbeul...@suse.com]
Sent: Thursday, April 16, 2015 4:49 PM
To: Han, Huaitong
Cc: xen-devel@lists.xen.org
Subject: Re: [v1] x86/cpuidle: get accurate C0 value with xenpm tool
On 16.04.15 at 08:03, huaitong@intel.com wrote:
When checking
On 17.04.15 at 09:36, huaitong@intel.com wrote:
From: Jan Beulich [mailto:jbeul...@suse.com]
Sent: Thursday, April 16, 2015 4:49 PM
On 16.04.15 at 08:03, huaitong@intel.com wrote:
When checking the ACPI funciton of C-status, after 100 seconds sleep,
the sampling value of C0
When checking the ACPI funciton of C-status, after 100 seconds sleep,
the sampling value of C0 C-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
On 16.04.15 at 08:03, huaitong@intel.com wrote:
When checking the ACPI funciton of C-status, after 100 seconds sleep,
the sampling value of C0 C-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
