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Thu, 21 Mar 2024 19:52:20 +0000 (UTC) Message-ID: <2ed2dadc-bdc4-4a21-8aca-a2aac0c6479a@acm.org> Date: Thu, 21 Mar 2024 12:52:19 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH 0/2] Introduce per-task io utilization boost Content-Language: en-US To: Christian Loehle , Qais Yousef Cc: linux-kernel@vger.kernel.org, peterz@infradead.org, juri.lelli@redhat.com, mingo@redhat.com, rafael@kernel.org, dietmar.eggemann@arm.com, vschneid@redhat.com, vincent.guittot@linaro.org, Johannes.Thumshirn@wdc.com, adrian.hunter@intel.com, ulf.hansson@linaro.org, andres@anarazel.de, asml.silence@gmail.com, linux-pm@vger.kernel.org, linux-block@vger.kernel.org, io-uring@vger.kernel.org, linux-mmc@vger.kernel.org References: <20240304201625.100619-1-christian.loehle@arm.com> <86f0af00-8765-4481-9245-1819fb2c6379@acm.org> <0dc6a839-2922-40ac-8854-2884196da9b9@arm.com> <2784c093-eea1-4b73-87da-1a45f14013c8@arm.com> <20240321123935.zqscwi2aom7lfhts@airbuntu> <1ff973fc-66a4-446e-8590-ec655c686c90@arm.com> From: Bart Van Assche In-Reply-To: <1ff973fc-66a4-446e-8590-ec655c686c90@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 3/21/24 10:57, Christian Loehle wrote: > In the long-term it looks like for UFS the problem will disappear as we are > expected to get one queue/hardirq per CPU (as Bart mentioned), on NVMe that > is already the case. Why the focus on storage controllers with a single completion interrupt? It probably won't take long (one year?) until all new high-end smartphones may have support for multiple completion interrupts. Thanks, Bart.