[ale] Use cloud guest to compile kernel

[Jim Kinney]

On Sep 23, 2016 3:55 PM, "Raj Wurttemberg" <rajaw at c64.us> wrote:
>
> Why not just cross-compile (-march=i586)  on your local system and then
upload the finished product? Make sure to use the “-j” switch also to keep
all of the CPUs busy.

+1. Keep your local machine busy. The universe hates an unused, cool core.
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> /Raj
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> From: ale-bounces at ale.org [mailto:ale-bounces at ale.org] On Behalf Of Chris
Fowler
> Sent: Friday, September 23, 2016 2:42 PM
> To: ale at ale.org
> Subject: [ale] Use cloud guest to compile kernel
>
>
>
> Is this a bad idea?
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>
> I need to compile a 4.7.2 kernel for i586.  The kernel config is copied
from debian jessie with CONFIG_M586TSC=y.
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> I don't have 2 days to wait.
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> 1.  Spin up a CentOS 6.X 32 bit guest at Digital Ocean with 8 cores and
16GB of ram.  This is $0.25/ht
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> 2. Transfer linux-4.7.2.tar.xz and the config to it.
>
> 3.  Unpack, copy the config to .config, make, create package, and
transfer back to the i586 hardware.
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> 4.  Delete the guest. I only pay for the usage.
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>
> I'm doing this on a Digital Ocean guest of lowest power.  Only 0.007/hr.
It is still taking a long time.
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> I need to build the same kernel, but for i586, i686, and x86_64.  I have
the configs ready to go.  I'm also perfecting my packaging too so I may
have to build a few times.
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> I making assumptions based on my assumption that I can use 8 cores at
100% each for a couple hours.  With Azure I can pay for a quarter core for
testing under Winders.
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