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 X-Spam-Level: X-Spam-Status: No, score=-10.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 476BBC4338F for ; Thu, 12 Aug 2021 16:40:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 229C06103E for ; Thu, 12 Aug 2021 16:40:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232744AbhHLQks (ORCPT ); Thu, 12 Aug 2021 12:40:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50728 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232725AbhHLQks (ORCPT ); Thu, 12 Aug 2021 12:40:48 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 17F8CC061756; Thu, 12 Aug 2021 09:40:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=L3TZh+KM/khYCofsHrKJGBXtbLTS523mfgnWyZNdJAw=; b=rYhU10EdwQ/vBC0iBHQwnX8vc+ N05gi7ilrjAUnSv5QKZ0pyH++Qr06LkVmj5Kacbb/I+z8f4TKiu6wZLYd6u3mD7eEPfrK9ZJeYX7P hk73lCPTBHzNE9cTClVo+HFCFVrVJZ1lYv/3bT3/rXfe4PYgwC1IuqIekLWLxLtEbpZJo4qZeURuD ISRpx1dcLWNdzE9oEnBoFZdN5ATFlECWmRbxB7FSaIHe/NPNTv/qIWyp+N1TXIHDJYh1z6QDqUFTv ubXWjN1RmTrwAoXpPGRxrtFJeUPAHS5sspAYA5uuLqG985JPWdCD723s3E+Pdr3DpaKoToYm/MZv7 2OcSIC8Q==; Received: from hch by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mEDjY-00EmEz-Pl; Thu, 12 Aug 2021 16:39:26 +0000 Date: Thu, 12 Aug 2021 17:39:08 +0100 From: Christoph Hellwig To: Jens Axboe Cc: io-uring@vger.kernel.org, linux-block@vger.kernel.org, hch@infradead.org Subject: Re: [PATCH 5/6] io_uring: enable use of bio alloc cache Message-ID: References: <20210812154149.1061502-1-axboe@kernel.dk> <20210812154149.1061502-6-axboe@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210812154149.1061502-6-axboe@kernel.dk> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On Thu, Aug 12, 2021 at 09:41:48AM -0600, Jens Axboe wrote: > Mark polled IO as being safe for dipping into the bio allocation > cache, in case the targeted bio_set has it enabled. > > This brings an IOPOLL gen2 Optane QD=128 workload from ~3.0M IOPS to > ~3.3M IOPS. Looks good, Reviewed-by: Christoph Hellwig Didn't the cover letter say 3.5M+ IOPS, though?