From: Adrian Hunter <adrian.hunter@intel.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@linux.intel.com>,
Andy Lutomirski <luto@amacapital.net>,
LKML <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
X86 ML <x86@kernel.org>, "H. Peter Anvin" <hpa@zytor.com>,
Len Brown <lenb@kernel.org>, George Spelvin <linux@horizon.com>,
Ingo Molnar <mingo@kernel.org>,
a.p.zijlstra@chello.nl, arjan@infradead.org, bp@alien8.de,
penberg@iki.fi, akpm@linux-foundation.org
Subject: Re: [PATCH RFC] x86, tsc: Allow for high latency in quick_pit_calibrate()
Date: Mon, 06 Jul 2015 09:48:58 +0300 [thread overview]
Message-ID: <559A24DA.7040004@intel.com> (raw)
In-Reply-To: <alpine.DEB.2.11.1506221514150.4107@nanos>
On 22/06/15 16:14, Thomas Gleixner wrote:
> On Mon, 22 Jun 2015, Adrian Hunter wrote:
>> On 03/06/15 19:23, Thomas Gleixner wrote:
>>> On Wed, 3 Jun 2015, Adrian Hunter wrote:
>>>
>>>> On 03/06/15 06:30, Andi Kleen wrote:
>>>>>> Then the changelog should say that I think. The current text says
>>>>>> "Fast TSC calibration will always fail", which, to me, suggests that
>>>>>> either the slow calibration will work or that the changelog message
>>>>>> should be changed.
>>>>>
>>>>> Ok. No, the slow calibration works I believe.
>>>>
>>>> Yeah, so the (only?) downside is the 50ms wasted on Fast TSC
>>>> calibration. What about this?
>>>
>>> I'm certainly happy to apply this one.
>>
>> George Spelvin began investigating improving quick_pit_calibrate() but Ingo
>> anyway suggested this patch as the first, so can this be applied?
>
> Oh, yes. I simply forgot to pick it up. Thanks for the reminder.
Sorry to bother you, but I don't still don't see the patch anywhere?
next prev parent reply other threads:[~2015-07-06 6:51 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-21 7:55 [PATCH RFC] x86, tsc: Allow for high latency in quick_pit_calibrate() Adrian Hunter
2015-06-01 7:57 ` Adrian Hunter
2015-06-02 13:58 ` Thomas Gleixner
2015-06-02 19:33 ` Thomas Gleixner
2015-06-02 19:41 ` Andy Lutomirski
2015-06-02 19:43 ` Andi Kleen
2015-06-02 19:58 ` Thomas Gleixner
2015-06-02 20:03 ` Andy Lutomirski
2015-06-02 20:20 ` Andi Kleen
2015-06-02 21:03 ` Thomas Gleixner
2015-06-02 23:38 ` Andi Kleen
2015-06-03 0:21 ` Andy Lutomirski
2015-06-03 0:39 ` Andi Kleen
2015-06-03 0:58 ` Andy Lutomirski
2015-06-03 3:30 ` Andi Kleen
2015-06-03 8:13 ` Adrian Hunter
2015-06-03 13:45 ` Linus Torvalds
2015-06-04 11:28 ` Adrian Hunter
2015-06-03 16:23 ` Thomas Gleixner
2015-06-22 11:21 ` Adrian Hunter
2015-06-22 13:14 ` Thomas Gleixner
2015-07-06 6:48 ` Adrian Hunter [this message]
2015-07-06 7:42 ` Thomas Gleixner
2015-06-22 14:12 ` George Spelvin
2015-07-06 7:42 ` [tip:x86/urgent] x86/tsc: Let high latency PIT fail fast " tip-bot for Adrian Hunter
2015-06-03 4:20 ` [PATCH RFC] x86, tsc: Allow for high latency " Linus Torvalds
2015-06-03 6:20 ` Ingo Molnar
2015-06-03 13:43 ` Linus Torvalds
2015-06-03 16:47 ` Thomas Gleixner
2015-06-03 17:04 ` Linus Torvalds
2015-06-03 17:50 ` H. Peter Anvin
2015-06-04 12:32 ` Ingo Molnar
2015-06-03 17:06 ` Ingo Molnar
-- strict thread matches above, loose matches on Subject: below --
2015-06-03 6:27 George Spelvin
2015-06-03 18:29 ` George Spelvin
2015-06-03 18:48 ` H. Peter Anvin
2015-06-03 19:07 ` George Spelvin
2015-06-04 16:38 ` George Spelvin
2015-06-04 16:52 ` Linus Torvalds
2015-06-04 17:54 ` George Spelvin
2015-06-04 18:07 ` Linus Torvalds
2015-06-05 5:52 ` George Spelvin
2015-06-05 6:16 ` Ingo Molnar
2015-06-05 5:58 ` Ingo Molnar
2015-06-05 8:24 ` George Spelvin
2015-06-05 8:31 ` Ingo Molnar
2015-06-05 20:17 ` George Spelvin
2015-06-06 21:50 ` George Spelvin
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