From: Jianguo Wu <wujianguo@huawei.com>
To: Ric Mason <ric.masonn@gmail.com>
Cc: linux-mm@kvack.org, Andi Kleen <andi@firstfloor.org>,
Hillf Danton <dhillf@gmail.com>
Subject: Re: Support variable-sized huge pages
Date: Thu, 31 Jan 2013 16:57:27 +0800 [thread overview]
Message-ID: <510A31F7.8030005@huawei.com> (raw)
In-Reply-To: <1359620590.1391.5.camel@kernel>
On 2013/1/31 16:23, Ric Mason wrote:
> Hi all,
>
> It seems that Andi's "Support more pagesizes for
> MAP_HUGETLB/SHM_HUGETLB" patch has already merged. According to the
> patch, x86 will support 2MB and 1GB huge pages. But I just see
> hugepages-2048kB under /sys/kernel/mm/hugepages/ on my x86_32 PAE desktop.
> Where is 1GB huge pages?
Hi Ric,
By default only has 2M huge pages, you can specify "hugepagesz=1G hugepages=xx" in boot option,
then you can see: /sys/kernel/mm/hugepages/hugepages-1048576kB.
Thanks,
Jianguo Wu
>
> Regards,
> Ric
>
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next prev parent reply other threads:[~2013-01-31 8:58 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-31 8:23 Support variable-sized huge pages Ric Mason
2013-01-31 8:57 ` Jianguo Wu [this message]
2013-01-31 10:52 ` Andi Kleen
2013-02-05 5:48 ` Ric Mason
2013-02-05 9:51 ` Michal Hocko
2013-02-05 14:08 ` Andi Kleen
2013-02-24 7:00 ` Ric Mason
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