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From: Greg KH <greg@kroah.com>
To: Harsh chopra <serviceprovider.tester@gmail.com>
Cc: Suraj Upadhyay <usuraj35@gmail.com>, kernelnewbies@kernelnewbies.org
Subject: Re: Computing resources required for kernel development
Date: Sun, 31 May 2020 08:29:08 +0200	[thread overview]
Message-ID: <20200531062908.GA1082896@kroah.com> (raw)
In-Reply-To: <CAPEbqj55MfRz07z+BL6TiFwQu18cL2nbipg+obGTM0_a89Y6JA@mail.gmail.com>

On Sun, May 31, 2020 at 11:42:16AM +0530, Harsh chopra wrote:
> I used
> make -j2 all

The number for -j should be at least the number of cores/cpus in your
system, and usually double works well.  I use -j10 for my tiny laptop
and that runs quite nicely.

I suggest running the kcbench tool to get a sense of how fast your
machine is, and what the best -j number is for your system:
	https://gitlab.com/knurd42/kcbench.git

Also, don't build the "full" kernel, only build what you need for your
hardware + whatever driver/code you are working on.  Read up on the
'make localmodconfig' kernel build option to have it create a
configuration file that is _MUCH_ smaller than all options, which will
make the build times very quick.

Good luck!

greg k-h

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  reply	other threads:[~2020-05-31  6:29 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-30 15:26 Computing resources required for kernel development Harsh chopra
2020-05-30 18:44 ` Suraj Upadhyay
2020-05-31  6:12   ` Harsh chopra
2020-05-31  6:29     ` Greg KH [this message]
2020-05-31  8:16 ` Valdis Klētnieks

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