From: Michal Hocko <mhocko@kernel.org>
To: yoav rubin <yoavrubin18@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: linux 32bit kernel virtual space , lowmem , highmem , RAM size
Date: Mon, 23 Sep 2019 16:50:37 +0200 [thread overview]
Message-ID: <20190923145037.GA1204@dhcp22.suse.cz> (raw)
In-Reply-To: <CAHcr5QqDCjWZz9ADvsE-3tt8qu4K+1NCn-gJuSsm2KBjUcaYVg@mail.gmail.com>
On Wed 11-09-19 19:46:46, yoav rubin wrote:
> Apologize in advance if I'm sending this to the wrong place. (It's my
> first time using mailing list...)
>
>
> I need some help understanding the exact relations between the linux
> kernel virtual space , specifically LOWMEM area , and the available
> RAM size as seen by the kernel.
Read through https://www.kernel.org/doc/gorman/
[...]
> For this question I'm ignoring the HIGHMEM area since its not exists
> in my system (turned it off by menuconfig).
[...]
> I know that I'm missing something here because there is no way its true.
If you disable highmem then all the 32b kernel can with is lowmem and
that is defined by the split (1/3 low/high).
--
Michal Hocko
SUSE Labs
prev parent reply other threads:[~2019-09-23 14:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-11 16:46 yoav rubin
2019-09-23 14:50 ` Michal Hocko [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190923145037.GA1204@dhcp22.suse.cz \
--to=mhocko@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=yoavrubin18@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®