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From: robert.richter@cavium.com (Robert Richter)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3] arm64: mm: Fix NOMAP page initialization
Date: Thu, 12 Jan 2017 19:58:25 +0100	[thread overview]
Message-ID: <20170112185825.GE5020@rric.localdomain> (raw)
In-Reply-To: <20170112160535.GF13843@arm.com>

On 12.01.17 16:05:36, Will Deacon wrote:
> On Mon, Jan 09, 2017 at 12:53:20PM +0100, Robert Richter wrote:

> > Kernel compile times (3 runs each):
> > 
> > pfn_valid_within():
> > 
> > real    6m4.088s
> > user    372m57.607s
> > sys     16m55.158s
> > 
> > real    6m1.532s
> > user    372m48.453s
> > sys     16m50.370s
> > 
> > real    6m4.061s
> > user    373m18.753s
> > sys     16m57.027s
> 
> Did you reboot the machine between each build here, or only when changing
> kernel? If the latter, do you see variations in kernel build time by simply
> rebooting the same Image?

I built it in a loop on the shell, so no reboots between builds. Note
that I was building the kernel in /dev/shm to not access harddisks. I
think build times should be comparable then since there is no fs
caching.

-Robert

  reply	other threads:[~2017-01-12 18:58 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-16 16:54 [PATCH v3] arm64: mm: Fix NOMAP page initialization Robert Richter
2017-01-04 13:56 ` Ard Biesheuvel
2017-01-05  2:03   ` Hanjun Guo
2017-01-06  1:07     ` Hanjun Guo
2017-01-06  5:22       ` Prakash B
2017-01-09  5:09         ` Hanjun Guo
2017-01-09  6:15           ` Prakash B
2017-01-06  8:37       ` Ard Biesheuvel
2017-01-09  5:14         ` Hanjun Guo
2017-01-09 11:53         ` Robert Richter
2017-01-12 16:05           ` Will Deacon
2017-01-12 18:58             ` Robert Richter [this message]
2017-01-13  9:19               ` Will Deacon
2017-01-13 13:15                 ` Robert Richter
2017-01-17 10:00                   ` Robert Richter
2017-01-17 19:16                     ` Will Deacon
2017-02-03 15:14                       ` Robert Richter
2017-02-03 18:16                         ` Will Deacon
2017-01-05 11:03   ` Robert Richter

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