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Thu, 18 Jul 2024 10:01:13 +0000 (GMT) Received: from epsmgms1p2new.samsung.com (unknown [182.195.42.42]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20240718100113epsmtrp25e4ee2f08258ba8f315e77dd36a4900c~jRmLgc8mG1042010420epsmtrp24; Thu, 18 Jul 2024 10:01:13 +0000 (GMT) X-AuditID: b6c32a4b-ae9fa70000021ac9-d5-6698e825e12e Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgms1p2new.samsung.com (Symantec Messaging Gateway) with SMTP id 74.7D.19057.8E7E8966; Thu, 18 Jul 2024 19:01:12 +0900 (KST) Received: from testpc11818.samsungds.net (unknown [109.105.118.18]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20240718100112epsmtip2886cec36726a0e511aa6eee8b330094c~jRmKl736_0213902139epsmtip2C; Thu, 18 Jul 2024 10:01:11 +0000 (GMT) From: hexue To: axboe@kernel.dk Cc: asml.silence@gmail.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH V6] io_uring: releasing CPU resources when polling Date: Thu, 18 Jul 2024 18:01:07 +0800 Message-Id: <20240718100107.1135964-1-xue01.he@samsung.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240709092944.3208051-1-xue01.he@samsung.com> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpik+LIzCtJLcpLzFFi42LZdlhTS1f1xYw0gz/N4hZzVm1jtFh9t5/N 4l3rORaLX913GS0u75rDZnF2wgdWBzaPnbPusntcPlvq0bdlFaPH501yASxR2TYZqYkpqUUK qXnJ+SmZeem2St7B8c7xpmYGhrqGlhbmSgp5ibmptkouPgG6bpk5QLuVFMoSc0qBQgGJxcVK +nY2RfmlJakKGfnFJbZKqQUpOQUmBXrFibnFpXnpenmpJVaGBgZGpkCFCdkZL78vYCn4wFTR deYDawPjCqYuRk4OCQETiXkTW4BsLg4hgd2MEotXTWeHcD4xShzdtY4ZwvnGKLFxfhMjTEvz +ZVQLXsZJS7v6mODcH4wSuy6fosdpIpNQEli/5YPYB0iAsIS+ztaWboYOTiYBUIkbp6JAAkL C7hJXJh5ng0kzCKgKrFnSjyIyStgLfFruTjEKnmJm137mUFsTgEbiadHl7CC2LwCghInZz5h AbGZgWqat84Gu1NC4BK7xOc1k5ghml0kTtx9yQJhC0u8Or6FHcKWkvj8bi8bhJ0vMfn7eqi/ aiTWbX4HVW8t8e/KHqiLNSXW79KHCMtKTD21jgliL59E7+8n0FDkldgxD8ZWklhyZAXUSAmJ 3xMWsULYHhIvLv0CGy8k0M8osaxBeQKjwiwk78xC8s4shM0LGJlXMUqmFhTnpqcWmxYY56WW w6M4OT93EyM4MWp572B89OCD3iFGJg7GQ4wSHMxKIrwTGKelCfGmJFZWpRblxxeV5qQWH2I0 BYb2RGYp0eR8YGrOK4k3NLE0MDEzMzOxNDYzVBLnfd06N0VIID2xJDU7NbUgtQimj4mDU6qB qXjHmfQ8F5MNlqv5L/w7y7/31Aq37Mp8n1860x4eX1eytzzWZt5+T9WnB2Wf3NC5tt5iq3nK aYmC6vLjrVsm7gl7/oAvoL9A5nuvxCdFq3N1xYvK7jfZywle37v7XfjP45lXzb2KQiQe5KZ+ 4Sref/yeTzDTNl7bXNepn3pD3r2rsZhb2HWubP7Og1PDJxioPgsx6oxNXb117eV0l/1z78sy 88Rm99wIn/W4IK34zq39a7dGlB3t/Sm9fEb18V/Hd+3zuOd95WnL3j0sUTPc78alGu7tN+y8 JW76gPO1uuuDirsnrv3rmjKfMeDr9W6hKK1IO/npHn135pw31J5RNyGMV/iNm05BCMN8KW5G UyWW4oxEQy3mouJEAPXBjVwVBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrFLMWRmVeSWpSXmKPExsWy7bCSvO6L5zPSDH7+s7GYs2obo8Xqu/1s Fu9az7FY/Oq+y2hxedccNouzEz6wOrB57Jx1l93j8tlSj74tqxg9Pm+SC2CJ4rJJSc3JLEst 0rdL4Mp4+X0BS8EHpoquMx9YGxhXMHUxcnJICJhINJ9fCWRzcQgJ7GaUaPp9kQ0iISGx49Ef VghbWGLlv+fsEEXfGCU+b9wLlmATUJLYv+UDI4gtAlS0v6OVBcRmFgiT6NpxBqxGWMBN4sLM 80BDOThYBFQl9kyJBzF5Bawlfi0XhxgvL3Gzaz8ziM0pYCPx9OgSsE4hoJKZS7+AxXkFBCVO znwCNV1eonnrbOYJjAKzkKRmIUktYGRaxSiZWlCcm55bbFhglJdarlecmFtcmpeul5yfu4kR HLxaWjsY96z6oHeIkYmD8RCjBAezkgjvBMZpaUK8KYmVValF+fFFpTmpxYcYpTlYlMR5v73u TRESSE8sSc1OTS1ILYLJMnFwSjUwnY4One4SHFNUeL1m7Vs9V9cq1691Jww37LHc2HDpF+tU Yb7Jpck+jK9cd5S/3yV+pb/pDdc/1dsNDqfKetNe5G+euGfDX+5lDaXieeXG274eXv3w37kS Te6NXw/kiBa2l6d1n2Ot+jprOUsfv+L8Xb9+rBF7IDlrtunkNuPcl2ynJ8Vtec9ao7I3fbnu WTUTUxWlVZMvv37EpxEazSTauWf3rb7dBt8sdjKtFAg+tmjl52kvrr+e+on9RtOKEzOUJ6zg sT1QsouPQ9NY9CCThOeyNaVBfvwP3JqtO350nPmu/Sxys9wdVmF3+eBXKxj+26lEysXPO8g4 Z9VE+8VCH/g4Iusir7Fsr7/1RqRxmxJLcUaioRZzUXEiACQOB/bNAgAA X-CMS-MailID: 20240718100113epcas5p255acf51a58cf410d5d0e8cffbca41994 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240718100113epcas5p255acf51a58cf410d5d0e8cffbca41994 References: <20240709092944.3208051-1-xue01.he@samsung.com> On 09/07/24 9:29AM, hexue wrote: >io_uring use polling mode could improve the IO performence, but it will >spend 100% of CPU resources to do polling. > >This set a signal "IORING_SETUP_HY_POLL" to application, aim to provide >a interface for user to enable a new hybrid polling at io_uring level. Hi, just a gentle ping. Any coments on this patch? -- hexue