From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qt1-f179.google.com (mail-qt1-f179.google.com [209.85.160.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C53A92EAD15 for ; Tue, 12 Aug 2025 11:14:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.179 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754997252; cv=none; b=Tat+BnMGn6BOEIMHDHKLrUds0vPxQwU2eQ+6ffJKtAo8eXK8T8c0eSsdDcv+j9DetC2qbWD/HRG/CCvV3K+diUuGjsfTZUQnacKgyMYKl7fkvDzYyXTR72GGEBOw6cV/8P3eB6FfCqISPU2VXvje4I1XzAIuN4Zf0Btl5J4w5V0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754997252; c=relaxed/simple; bh=r+j4yIaNHRIg2FsLqu4uPP3CnoIPww8WNh0povehQEw=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=Ugp5dTWIm71G8LC3e7hjXLyQzsxaTxz+dEyLRpBFaHHFCO9j/kZhe+LtoEtfgssMIwqddTwEFhGvO+78Tc/CrMs1XifqU2A9D+kFebajB/WxflokA+YsgWRHkK5l/SDTE+1tu7GoXYzMf1gKMRgKMBtRXE+4vDOoMywAo9zo1vY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=szeredi.hu; spf=pass smtp.mailfrom=szeredi.hu; dkim=pass (1024-bit key) header.d=szeredi.hu header.i=@szeredi.hu header.b=qgzVRuaH; arc=none smtp.client-ip=209.85.160.179 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=szeredi.hu Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=szeredi.hu Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=szeredi.hu header.i=@szeredi.hu header.b="qgzVRuaH" Received: by mail-qt1-f179.google.com with SMTP id d75a77b69052e-4b0db8ce2ceso29357721cf.1 for ; Tue, 12 Aug 2025 04:14:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=szeredi.hu; s=google; t=1754997248; x=1755602048; darn=vger.kernel.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=r+j4yIaNHRIg2FsLqu4uPP3CnoIPww8WNh0povehQEw=; b=qgzVRuaHkK0/BIdMlom9u/3QXHjPQAPsVlgLxIU1WW346VgRrhdd23za9Ff86dbqZ6 7WZ17667qMnsKaIQugrCUFGWjM7PbCgYNLXnhhvuxq2uMv0mx6xluZY6mRGWAGngQUWf ctXLSpTLeJPBaiYzKt3UZVcoFkhGZttmgrHQQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1754997248; x=1755602048; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=r+j4yIaNHRIg2FsLqu4uPP3CnoIPww8WNh0povehQEw=; b=quy6SQiNz5XSIREazujF/NHGloNnnf+EDyQsqIjo1PBifxfU+vV23Jr1JCMY5saiCF nzKZMdK4PQT583YpXqqUow30+SH24ZyU9gr60LWxYmb9l5lGW6ErKqDrsn/7Ar9G2SOe x44y0ZKCtYDp/wLgaHuy+EQ+2mCmlEFCMMkG3zMO2v5sWVrZHaIDZ/Vx1vBXDBsiESGC XGrtadzMyB4eNKTTxd2wpBoMZv/+dUnzp7p0qSMdsiH9T3kieCHdXZQ+aHFFyPxwjYo/ 4cWFQUy7fAbfoGUjgNzBguXBhfVFitSM5rv+Zg8Mm6EGnhIyo2kHyjGYgXmz0h15raDA Ks+w== X-Gm-Message-State: AOJu0Yze4uzPOy+sYSNsaIKCRqHzJNz0W84ioz2LKEpXinpzZLo7catx dzrPR5t6ZdeJcl3X57Jrm5aITua4mOB2630IVWX69pj9E0uJhvFpSoZ8J1V0XJOMj8uYQeXEc24 I0N/qeo6vTidmBDUJS2VnWw+FVUCYgZgHhtHZV/I4hw== X-Gm-Gg: ASbGncve6BfbgewewHj3R86kvATAy9X/Be5GEe8+5VgueZCR8uxm+HQ4w5vzRG5Vpfo ahq3aBE3f0i87SgbfkA4s31b6QZWKTjOkEhbaHsNhBnidjwFJGnD0tT5jda9xCCOJAdc4WWJKp3 aoQ7GaOUaKjG2z/xZVAJAIbngF8RwqFApSb+dn6Y2KcHAX6aWDHwf1PSmYmh8bVLD+ebGDcrd6x TRS X-Google-Smtp-Source: AGHT+IHQYhSqmfdE0xzXHnDoCKg4YvLClz6yM+KFUmIF9eCorxMjYYGKJklIoGPTtD08uW6+sNSOrLlPQu1VIRls/+M= X-Received: by 2002:a05:622a:58c7:b0:4ab:6154:d2a3 with SMTP id d75a77b69052e-4b0eccb8c6emr31141741cf.52.1754997248429; Tue, 12 Aug 2025 04:14:08 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20250811204008.3269665-1-joannelkoong@gmail.com> In-Reply-To: From: Miklos Szeredi Date: Tue, 12 Aug 2025 13:13:57 +0200 X-Gm-Features: Ac12FXxr26kpmMnlrjUv1Qw9y98AxmWMjQlwwGwK7BtYvoI-hNmfKyNz_qeMWdA Message-ID: Subject: Re: [PATCH] fuse: enable large folios (if writeback cache is unused) To: Joanne Koong Cc: linux-fsdevel@vger.kernel.org, jefflexu@linux.alibaba.com, bernd.schubert@fastmail.fm, willy@infradead.org, kernel-team@meta.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, 11 Aug 2025 at 23:13, Joanne Koong wrote: > > On Mon, Aug 11, 2025 at 1:43=E2=80=AFPM Joanne Koong wrote: > > > > Large folios are only enabled if the writeback cache isn't on. > > (Strictlimiting needs to be turned off if the writeback cache is used i= n > > conjunction with large folios, else this tanks performance.) Is there an explanation somewhere about the writeback cache vs. strictlimit issue? Thanks, Miklos