>-Original Message-
>From: [EMAIL PROTECTED]
>[mailto:[EMAIL PROTECTED] On Behalf Of Paul
>Rolland (???・???)
>Sent: Thursday, November 29, 2007 10:53 PM
>To: Pallipadi, Venkatesh
>Cc: Linux Kernel; Siddha, Suresh B; [EMAIL PROTECTED]
>Subject: Re: const
Paul Rolland (ポール・ロラン) wrote:
Note that once TSC is disabled (it's using "jiffies" as far
as I can see), ntpd constantly speeds up and slows down the
clock, it jumps +/- 0.5sec every several minutes or hours -
I guess that's when ntpd process gets moved from one core
to another for whatever rea
Hello,
On Fri, 30 Nov 2007 00:26:47 +0300
Michael Tokarev <[EMAIL PROTECTED]> wrote:
> H. Peter Anvin wrote:
> > Paul Rolland (ポール・ロラン) wrote:
> []
> >> Measured 3978592228 cycles TSC warp between CPUs, turning off TSC clock.
> >> Marking TSC unstable due to: check_tsc_sync_source failed.
> []
>
Hello,
On Thu, 29 Nov 2007 15:29:49 -0800
"Pallipadi, Venkatesh" <[EMAIL PROTECTED]> wrote:
> TSCs on Core 2 Duo are supposed to be in sync unless CPU supports deep idle
> states like C2, C3. Can you send the full /proc/cpuinfo and full dmesg.
>
Sure I can...
[EMAIL PROTECTED] log]# cat /proc/
Paul Rolland wrote:
> Total of 2 processors activated (6919.15 BogoMIPS).
> ENABLING IO-APIC IRQs
> ..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
> checking TSC synchronization [CPU#0 -> CPU#1]:
> Measured 3978592228 cycles TSC warp between CPUs, turning off TSC clock.
> Marking TSC unstable
>-Original Message-
>From: [EMAIL PROTECTED]
>[mailto:[EMAIL PROTECTED] On Behalf Of Paul
>Rolland (???・???)
>Sent: Thursday, November 29, 2007 8:12 AM
>To: Linux Kernel
>Cc: [EMAIL PROTECTED]
>Subject: constant_tsc and TSC unstable
>
>Hello,
>
>I've a machine with a Core2Duo CPU. /pro
H. Peter Anvin wrote:
Paul Rolland (ポール・ロラン) wrote:
Hello,
I've a machine with a Core2Duo CPU. /proc/cpuinfo reports the flag
constant_tsc, but at boot time, I have the log :
...
Total of 2 processors activated (6919.15 BogoMIPS).
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 apic1=0 pin1=2 apic2
H. Peter Anvin wrote:
> Paul Rolland (ポール・ロラン) wrote:
[]
>> Measured 3978592228 cycles TSC warp between CPUs, turning off TSC clock.
>> Marking TSC unstable due to: check_tsc_sync_source failed.
[]
>> but I was wondering if this is a bug or a feature ;)
> The problem you're having is that the TSCs
Paul Rolland (ポール・ロラン) wrote:
Hello,
I've a machine with a Core2Duo CPU. /proc/cpuinfo reports the flag
constant_tsc, but at boot time, I have the log :
...
Total of 2 processors activated (6919.15 BogoMIPS).
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
checking TS
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