From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f51.google.com (mail-wr1-f51.google.com [209.85.221.51]) (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 3E8DA4F21D for ; Sun, 10 Nov 2024 14:55:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.51 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731250541; cv=none; b=U3LkzLkL8XhA0YNq9WybdOEXiMyDP12xzZNB3+UjCiUTJ9q4qQcmZvefSqRE+py0OAcigZhbqThU8S8n3dhK9hYpWPpYE7vKJsfL/IngCpnMj8MqmY6hTpC/eNktS02DYeaZdEem8kvWQc6yhN4SBnBFLAp5laVGn5STnGU8CEM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731250541; c=relaxed/simple; bh=ExemXL/DdS9n1Vxa03EDXEktjfxrGVHAUtWTs/1VnWU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=P4JD3h4du6yguVxF7cIZhS4aTnuVAy5h8vzJrVlk0SZ54npT9MfzN2t3Frjck8mjq+QUY243WJLxuUueEDFifqyurNuAylLhGRJTSXzcPe7OGP0GP/3UtonUeDTwyWOvjuReU0PkGm/SH29ZO6IW53fk/feCnBS2rejGpdnDH0A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=NOICgUNr; arc=none smtp.client-ip=209.85.221.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="NOICgUNr" Received: by mail-wr1-f51.google.com with SMTP id ffacd0b85a97d-37d8901cb98so2742120f8f.0 for ; Sun, 10 Nov 2024 06:55:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1731250538; x=1731855338; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=IiDt+EA95mhc6bee3L4p+1ghKjrrf4iH5mEMAw+jUV8=; b=NOICgUNrh1mmf7F9ygSHI4n/YkpeWCWW1O5tWNV5CenSEnkjXFNSvekQnWLQ2qwaTX h48uLaP3FaYLAO4jd3gUGrEoAZuS5VIonlOnD6K3K5iFA755ebDkUz9+aJU2pTGWKbiz 7pqY85+z+9HFC8mxhKvibZl8jzzyNmBawvJYp1odZltZiA4qIpaUzIddQtOMLwThHWRg s2S113u/QCbs2zyBYA+cNtENoyxyocK8xxHT+KwtO08GwEDqdKlsUbvaP3RTmnAOVl0F 0ReiIDCQPPeTXuriohQuuSabiGcD72QIgARpACKprPi0JpePXuKoYGI4WWXrLFEbq8nc i8/Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731250538; x=1731855338; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=IiDt+EA95mhc6bee3L4p+1ghKjrrf4iH5mEMAw+jUV8=; b=eFyMWYjl7X1f4ZFnEjzD+bxyBhXxiPwdxEqrr5vUZtjyjAeN612f5wnq730kJvgwC8 e83N/mF17SwzEli6hTVJVnWx6lV2qL/tZrts7dBpdXcLDkj9/Fl+8+lOIGMBYdBN/vey iGV1EiDe3mbRgrzOmesTuAqBK9r+zh5JOVPF8aod7tsrbO9qPE71bEs/UiyZ08HLMq9j YGOfc4MxtJ+UIJJnSeTeVen2xuQb0Q4MIOjyks15mIZ4+WaLIyIU0zG0stgPYwSbK5Fl t9x22x47DUIEATFc8J/Ethjl7PtpK35QsGV2UfqOrDkDg9EPVNGJHO/AzPEhqFnVF4og Lvlw== X-Gm-Message-State: AOJu0YwUhB4GZ1Dll9OirK/AAc6tSWS7QG+v31FfSw4LxTrw/HOTw3zg 9MueP5THLVGQH1p4UAPU4C0jPBSPFIFTKVif/dTbm90fcS3OWDY4IlpuaQ== X-Google-Smtp-Source: AGHT+IHUnaGL8mfzk/jirbmLGNR5cZ+WdCrqOT9jazEtEwd/4fUUJqMmFJ3ml8z1DpI5WRboiQEEkA== X-Received: by 2002:a5d:64c5:0:b0:37c:c9bc:1be6 with SMTP id ffacd0b85a97d-381f0f5e3a7mr7772764f8f.16.1731250537704; Sun, 10 Nov 2024 06:55:37 -0800 (PST) Received: from 127.0.0.1localhost ([85.255.234.98]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-432aa6beea6sm182445535e9.20.2024.11.10.06.55.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 10 Nov 2024 06:55:37 -0800 (PST) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: asml.silence@gmail.com Subject: [RFC 0/3] request parameter set api and wait termination tuning Date: Sun, 10 Nov 2024 14:56:19 +0000 Message-ID: X-Mailer: git-send-email 2.46.0 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit A crude prototype for probing opinions on the API. Not suitable for upstream in the current form. Not properly tested either. Patch 1 adds indirection for new parameters and flags by allowing the user to register a certain combination of them and requests to refer to them an index passed in sqe->personality. The use case in mind is the tuning wake ups and wait loop termination conditions. Patch 3 is not complete, and I have doubts about the semantics of Patch 2, but it showcases what/how the series is trying to target. Note, these are made as hints and can be seamlessly deprecated and removed from the kernel, in which case the user will get woken up more often / earlier, which should be tolerated. Jens Axboe (1): io_uring: add support for ignoring inline completions for waits Pavel Begunkov (2): io_uring: introduce request parameter sets io_uring: allow waiting loop to ignore some CQEs include/linux/io_uring_types.h | 9 ++++ include/uapi/linux/io_uring.h | 14 ++++++ io_uring/io_uring.c | 91 +++++++++++++++++++++++----------- io_uring/msg_ring.c | 1 + io_uring/net.c | 1 + io_uring/register.c | 52 +++++++++++++++++++ 6 files changed, 139 insertions(+), 29 deletions(-) -- 2.46.0