From: David Hildenbrand <david@redhat.com>
To: "Li,Rongqing" <lirongqing@baidu.com>,
"muchun.song@linux.dev" <muchun.song@linux.dev>,
"osalvador@suse.de" <osalvador@suse.de>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [外部邮件] Re: [PATCH] mm/hugetlb: early exit from hugetlb_pages_alloc_boot() when max_huge_pages=0
Date: Thu, 14 Aug 2025 11:15:27 +0200 [thread overview]
Message-ID: <7b8f4380-d74d-4498-9e14-b1302f1dec0b@redhat.com> (raw)
In-Reply-To: <8db5f7f3b66a40af8abf921290db42ab@baidu.com>
On 14.08.25 11:12, Li,Rongqing wrote:
>> On 14.08.25 10:29, lirongqing wrote:
>>> From: Li RongQing <lirongqing@baidu.com>
>>>
>>> Optimize hugetlb_pages_alloc_boot() to return immediately when
>>> max_huge_pages is 0, saving cycles when hugepages aren't configured in
>>> the kernel command line.
>>
>> Do we really care?
>>
>
> I find this when I see the boot log, I think this log is unnecessary if user did not configure hugetlbfs in kernel cmdline
>
> kernel: HugeTLB: allocation took 0ms with hugepage_allocation_threads=32
That's valuable information to add to the patch description :)
--
Cheers
David / dhildenb
prev parent reply other threads:[~2025-08-14 9:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-14 8:29 lirongqing
2025-08-14 9:01 ` David Hildenbrand
2025-08-14 9:12 ` [外部邮件] " Li,Rongqing
2025-08-14 9:15 ` David Hildenbrand [this message]
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