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Mon, 31 Aug 2026 23:43:00 -0700 (PDT) Message-ID: <6a9673f4.cbade83c.66f7c.3d66@mx.google.com> Date: Mon, 31 Aug 2026 23:43:00 -0700 (PDT) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: base64 From: Taha Sezer To: ljs@kernel.org, akpm@linux-foundation.org Cc: david@kernel.org, vbabka@kernel.org, mhocko@suse.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm: vmpressure: scale window size based on machine memory In-Reply-To: <20260831130316.448-1-tahasezer.is@gmail.com> References: <20260831130316.448-1-tahasezer.is@gmail.com> SGkgTG9yZW56bywgQW5kcmV3LAoKVGhhbmtzIGZvciB0aGUgaG9uZXN0IGFuZCB0aG9yb3VnaCBy ZXZpZXcuCgpMb3JlbnpvIC0tIHllcywgSSBkaWQgdXNlIGFuIEFJIGNvZGluZyBhc3Npc3RhbnQg KENsYXVkZSkgdG8gaGVscAp3cml0ZSB0aGlzIHBhdGNoLiBJIHNob3VsZCBoYXZlIGluY2x1ZGVk IGFuIEFzc2lzdGVkLWJ5OiB0YWcgZnJvbQp0aGUgc3RhcnQgYW5kIEkgYXBvbG9naXNlIGZvciB0 aGUgb21pc3Npb24uIFRoYXQgd2FzIGEgbWlzdGFrZSBvbgpteSBwYXJ0LCBub3QgYW4gYXR0ZW1w dCB0byBoaWRlIGFueXRoaW5nIC0tIEkgc2ltcGx5IHdhcyBub3QgYXdhcmUgb2YKdGhlIGRpc2Ns b3N1cmUgcHJvY2VzcyBmb3IgbXkgZmlyc3Qgc3VibWlzc2lvbi4KCkFuZHJldyAtLSB5b3UgYXJl IGFic29sdXRlbHkgcmlnaHQgYWJvdXQgdGhlIG1hdGguIFRoZSBvcmlnaW5hbCB3aW5kb3cKaXMg U1dBUF9DTFVTVEVSX01BWCAqIDE2ID0gNTEyIHBhZ2VzLCBhbmQgbXkgZm9ybXVsYSBjbGFtcChm bHMobWVtKSwKNCwgNjQpIHByb2R1Y2VzIHZhbHVlcyB3ZWxsIGJlbG93IDE2IGZvciBldmVyeSBt YWNoaW5lIHVuZGVyIH44IFRCLgpUaGUgcGF0Y2ggc2hyaW5rcyB0aGUgd2luZG93IG9uIHZpcnR1 YWxseSBhbGwgcmVhbCBoYXJkd2FyZSwgd2hpY2ggaXMKdGhlIGV4YWN0IG9wcG9zaXRlIG9mIHdo YXQgdGhlIGNvbW1pdCBtZXNzYWdlIHByb21pc2VzLiBFbWJhcnJhc3NpbmcsCmFuZCBJIHNob3Vs ZCBoYXZlIGNhdWdodCB0aGlzIGJlZm9yZSBzZW5kaW5nLgoKRm9yIGEgYml0IG9mIGNvbnRleHQg b24gd2h5IEkgY2hvc2UgbW0vOiBJIGhhdmUgYmVlbiB3cml0aW5nIGEgaG9iYnkKa2VybmVsIGZy b20gc2NyYXRjaCAoQ2FlbHVtKSB0aGF0IGluY2x1ZGVzIGEgVk1NIHdpdGggQ09XIGFuZCBkZW1h bmQKcGFnaW5nLCBhIHNsYWIgYWxsb2NhdG9yIHdpdGggTlVNQS1hd2FyZSBhbGxvY2F0aW9uLCBU TEIgc2hvb3Rkb3duCnZpYSBJUEksIGFuZCBTTVAgYm9vdCAtLSBzbyBtZW1vcnkgbWFuYWdlbWVu dCBpcyB0aGUgYXJlYSBJIGFtIG1vc3QKY29tZm9ydGFibGUgd2l0aC4gVGhhdCBzYWlkLCBjb21m b3J0YWJsZSB3aXRoIHRoZSBjb25jZXB0cyBjbGVhcmx5CmRpZCBub3Qgc2F2ZSBtZSBmcm9tIGEg YmFzaWMgYXJpdGhtZXRpYyBtaXN0YWtlIGhlcmUsIGFuZCBJIHRha2UgZnVsbApyZXNwb25zaWJp bGl0eSBmb3Igbm90IHZlcmlmeWluZyB0aGUgb3V0cHV0IGNhcmVmdWxseSBlbm91Z2guCgpCZWZv cmUgSSBzZW5kIGEgdjIsIEkgd291bGQgYXBwcmVjaWF0ZSBhbnkgZ3VpZGFuY2U6CgogIDEuIElz IHRoZSBnZW5lcmFsIGlkZWEgc3RpbGwgd29ydGggcHVyc3VpbmcgLS0gc2NhbGluZyB0aGUgd2lu ZG93CiAgICAgbG9nYXJpdGhtaWNhbGx5IHdpdGggdG90YWwgUkFNIHVzaW5nIGZscygpLCBvciBk byB5b3UgdGhpbmsKICAgICB0aGUgZml4ZWQgNTEyLXBhZ2Ugd2luZG93IGlzIGZpbmUgYXMtaXMg YW5kIHRoaXMgVE9ETyBpcwogICAgIGJldHRlciBsZWZ0IGFsb25lPwoKICAyLiBJZiB0aGUgYXBw cm9hY2ggaXMgd29ydGggZml4aW5nOiB3b3VsZCBrZWVwaW5nIHRoZSBvcmlnaW5hbAogICAgIG11 bHRpcGxpZXIgb2YgMTYgYXMgdGhlIGZsb29yIChzbyB0aGUgd2luZG93IG9ubHkgZXZlciBncm93 cwogICAgIGJleW9uZCA1MTIgcGFnZXMpIGJlIHRoZSByaWdodCBkaXJlY3Rpb24sIG9yIHdvdWxk IHlvdSBwcmVmZXIKICAgICBhIGRpZmZlcmVudCBzY2FsaW5nIHN0cmF0ZWd5IGVudGlyZWx5PwoK ICAzLiBBbnkgb3RoZXIgYWR2aWNlIGZvciBhIGZpcnN0LXRpbWUgY29udHJpYnV0b3Igb24gaG93 IHRvCiAgICAgYXBwcm9hY2ggbW0vIHBhdGNoZXMgbW9yZSBjYXJlZnVsbHk/CgpJIHdpbGwgaG9s ZCBvZmYgb24gdjIgdW50aWwgSSBoZWFyIGJhY2ssIHNvIEkgZG8gbm90IHdhc3RlIGFueW9uZSdz CnRpbWUgd2l0aCBhbm90aGVyIGhhbGYtYmFrZWQgYXR0ZW1wdC4gVGhlIG5leHQgdmVyc2lvbiB3 aWxsIGluY2x1ZGUKYSBwcm9wZXIgQXNzaXN0ZWQtYnk6IENsYXVkZTpjbGF1ZGUtb3B1cy00IHRh Zy4KClRoYW5rcyBhZ2FpbiBmb3IgdGhlIHBhdGllbmNlLgoKQmVzdCByZWdhcmRzLApUYWhhIFNl emVyCg==