From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DF6ECC4332F for ; Thu, 20 Oct 2022 12:50:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230262AbiJTMul (ORCPT ); Thu, 20 Oct 2022 08:50:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59708 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230259AbiJTMuk (ORCPT ); Thu, 20 Oct 2022 08:50:40 -0400 Received: from mail-pl1-x62d.google.com (mail-pl1-x62d.google.com [IPv6:2607:f8b0:4864:20::62d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07F4418952E for ; Thu, 20 Oct 2022 05:50:39 -0700 (PDT) Received: by mail-pl1-x62d.google.com with SMTP id u6so2698079plq.12 for ; Thu, 20 Oct 2022 05:50:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:date:message-id:subject :references:in-reply-to:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=3T6X+tt7V+91kobXX12t6/xBrHgsUusEkXMw0L2QMKo=; b=V1e+eumcTbSiXyjph0yA3r/AC6Jy3E7VdU0fC5UdvN3Jjv5eHkX+KRzb3g/5Snd3ZB TO3UwH0dGpPsF3IU1lCS+drZ84tqXau9dHvtNPhV2RLawCrjLIQ8PR4P5KZqR87/eJqb SE0VT26rx6WgMpUXzQiyNswQClOxqQojw78L07iPRMxPxe3bOhmP16OZQ6rbU0gwzOxU KnGQSw+KJJBW8s1zOep5CjR4Fmsir+FCzi9T8L9Okp56p7CnC33SIIoZB1zuZMOvWIPD RMXguy9y9Ej7zdSAjXnm6we46Y+87YtUPtndgbrZl3Bjtl/wMhRUbj0BQhxgNuJ6Dgcp Y9Lw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:date:message-id:subject :references:in-reply-to:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=3T6X+tt7V+91kobXX12t6/xBrHgsUusEkXMw0L2QMKo=; b=8BCPrFUAoCMW3LjMXTPf2TL+HjDpq8FPiKuX1pgB9jMtWmlRBQDZfra2uWqqx0l+mq pHSkH/eS6MG5XLrMuDaPArIEkZ3Ce7tPlWPhOVV8UYcog2RFWSoe0uuyuQGZ4QNqiayp 8GeliQ+8a4PE22IhsYgWf76tZ5oPZ1lwRH0w0+8ePeh5ejnFZVhOHoeFXqb6rTirqLM+ QRZpE9aIRdWlggtkPimKNnAymogW7QdP+cSl0md5EY+XgHRmrOOTxMMs6XDuASUxD8G5 N8AN+Adr/FP28+3eJ8jvtmL/GseWqB6Z4KiIXG0p2qyc7PVIMH96weZWTp9FzzwHXz0v SCKw== X-Gm-Message-State: ACrzQf2VHk/exleknpX4a7y0brdndcjVUkwI6lY3hrND/j8apvvIlymz 2tYAX6JgnM0xBeUO5oL+Cz/JBw== X-Google-Smtp-Source: AMsMyM4TRzgWshHzykwjj+0oSUfvvDKlhXsmbl0EEBW/4qsIASSjpO/zYNZVz/MgLoZQ1OlX/n7zyA== X-Received: by 2002:a17:90b:2243:b0:20b:42a:4c0d with SMTP id hk3-20020a17090b224300b0020b042a4c0dmr49870333pjb.123.1666270238215; Thu, 20 Oct 2022 05:50:38 -0700 (PDT) Received: from [127.0.0.1] (cpe-72-132-29-68.dc.res.rr.com. [72.132.29.68]) by smtp.gmail.com with ESMTPSA id d8-20020a170902cec800b0017f7b6e970esm12885047plg.146.2022.10.20.05.50.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Oct 2022 05:50:37 -0700 (PDT) From: Jens Axboe To: linux-block@vger.kernel.org, Pavel Begunkov Cc: io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org In-Reply-To: References: Subject: Re: (subset) [RFC for-next v2 0/4] enable pcpu bio caching for IRQ I/O Message-Id: <166627023722.161997.8160242378689353670.b4-ty@kernel.dk> Date: Thu, 20 Oct 2022 05:50:37 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Mailer: b4 0.11.0-dev-d9ed3 Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On Tue, 18 Oct 2022 20:50:54 +0100, Pavel Begunkov wrote: > This series implements bio pcpu caching for normal / IRQ-driven I/O > extending REQ_ALLOC_CACHE currently limited to iopoll. The allocation side > still only works from non-irq context, which is the reason it's not enabled > by default, but turning it on for other users (e.g. filesystems) is > as a matter of passing a flag. > > t/io_uring with an Optane SSD setup showed +7% for batches of 32 requests > and +4.3% for batches of 8. > > [...] Applied, thanks! [1/4] bio: safeguard REQ_ALLOC_CACHE bio put commit: d4347d50407daea6237872281ece64c4bdf1ec99 Best regards, -- Jens Axboe