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[2003:d8:2f18:f900:e0ae:65d5:8bf8:8cfd]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3e7cde81491sm11735126f8f.42.2025.09.15.03.52.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 15 Sep 2025 03:52:06 -0700 (PDT) Message-ID: Date: Mon, 15 Sep 2025 12:52:03 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v11 00/15] khugepaged: mTHP support To: Lorenzo Stoakes Cc: Kiryl Shutsemau , Nico Pache , linux-mm@kvack.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, ziy@nvidia.com, baolin.wang@linux.alibaba.com, Liam.Howlett@oracle.com, ryan.roberts@arm.com, dev.jain@arm.com, corbet@lwn.net, rostedt@goodmis.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, akpm@linux-foundation.org, baohua@kernel.org, willy@infradead.org, peterx@redhat.com, wangkefeng.wang@huawei.com, usamaarif642@gmail.com, sunnanyong@huawei.com, vishal.moola@gmail.com, thomas.hellstrom@linux.intel.com, yang@os.amperecomputing.com, aarcange@redhat.com, raquini@redhat.com, anshuman.khandual@arm.com, catalin.marinas@arm.com, tiwai@suse.de, will@kernel.org, dave.hansen@linux.intel.com, jack@suse.cz, cl@gentwo.org, jglisse@google.com, surenb@google.com, zokeefe@google.com, hannes@cmpxchg.org, rientjes@google.com, mhocko@suse.com, rdunlap@infradead.org, hughd@google.com, richard.weiyang@gmail.com, lance.yang@linux.dev, vbabka@suse.cz, rppt@kernel.org, jannh@google.com, pfalcato@suse.de References: <20250912032810.197475-1-npache@redhat.com> <155c821d-402c-4627-a723-6f8c88a2f65c@lucifer.local> From: David Hildenbrand Autocrypt: addr=david@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Stat-Signature: hwqd69cshufas6d1obaf54bezrb4wpf8 X-Rspam-User: X-Rspamd-Queue-Id: 8806BC0002 X-Rspamd-Server: rspam10 X-HE-Tag: 1757933530-91960 X-HE-Meta: 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 XTBdqBxc 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 15.09.25 12:43, Lorenzo Stoakes wrote: > On Mon, Sep 15, 2025 at 12:22:07PM +0200, David Hildenbrand wrote: >> >> 0 -> ~100% used (~0% none) >> 1 -> ~50% used (~50% none) >> 2 -> ~25% used (~75% none) >> 3 -> ~12.5% used (~87.5% none) >> 4 -> ~11.25% used (~88,75% none) >> ... >> 10 -> ~0% used (~100% none) > > Oh and shouldn't this be inverted? > > 0 eagerness = we eat up all none PTE entries? Isn't that pretty eager? :P > 10 eagerness = we aren't eager to eat up none PTE entries at all? > > Or am I being dumb here? Good question. For swappiness it's: 0 -> no swap (conservative) So intuitively I assumed: 0 -> no pte_none (conservative) You're the native speaker, so you tell me :) -- Cheers David / dhildenb