From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Martin K. Petersen" Subject: Re: [PATCH 05/15] Add io_uring IO interface Date: Tue, 15 Jan 2019 12:31:59 -0500 Message-ID: References: <20190110024404.25372-1-axboe@kernel.dk> <20190110024404.25372-6-axboe@kernel.dk> <54976aac-bef2-880f-dc10-e3030189a08a@kernel.dk> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <54976aac-bef2-880f-dc10-e3030189a08a@kernel.dk> (Jens Axboe's message of "Sun, 13 Jan 2019 09:22:16 -0700") Sender: owner-linux-aio@kvack.org To: Jens Axboe Cc: "Martin K. Petersen" , linux-fsdevel@vger.kernel.org, linux-aio@kvack.org, linux-block@vger.kernel.org, linux-arch@vger.kernel.org, hch@lst.de, jmoyer@redhat.com, avi@scylladb.com List-Id: linux-arch.vger.kernel.org Jens, > I bit the bullet and bumped the size. 64 bytes is a nicer size in terms > of cachelines anyway, and I really doubt that 48 vs 64 bytes makes a > size consumption problem for anyone. > > The buf_index is only used for the fixed buffers, which means that we have > 16 bytes / 128 bits that we can grab for things like KV. Great! -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe, send a message with 'unsubscribe linux-aio' in the body to majordomo@kvack.org. For more info on Linux AIO, see: http://www.kvack.org/aio/ Don't email: aart@kvack.org From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from userp2120.oracle.com ([156.151.31.85]:42104 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726022AbfAORcO (ORCPT ); Tue, 15 Jan 2019 12:32:14 -0500 Subject: Re: [PATCH 05/15] Add io_uring IO interface From: "Martin K. Petersen" References: <20190110024404.25372-1-axboe@kernel.dk> <20190110024404.25372-6-axboe@kernel.dk> <54976aac-bef2-880f-dc10-e3030189a08a@kernel.dk> Date: Tue, 15 Jan 2019 12:31:59 -0500 In-Reply-To: <54976aac-bef2-880f-dc10-e3030189a08a@kernel.dk> (Jens Axboe's message of "Sun, 13 Jan 2019 09:22:16 -0700") Message-ID: MIME-Version: 1.0 Content-Type: text/plain Sender: linux-arch-owner@vger.kernel.org List-ID: To: Jens Axboe Cc: "Martin K. Petersen" , linux-fsdevel@vger.kernel.org, linux-aio@kvack.org, linux-block@vger.kernel.org, linux-arch@vger.kernel.org, hch@lst.de, jmoyer@redhat.com, avi@scylladb.com Message-ID: <20190115173159.tE_ngd517hpX7zceDsUPLwwWaWGcJ5QZiUHTA9B_7AA@z> Jens, > I bit the bullet and bumped the size. 64 bytes is a nicer size in terms > of cachelines anyway, and I really doubt that 48 vs 64 bytes makes a > size consumption problem for anyone. > > The buf_index is only used for the fixed buffers, which means that we have > 16 bytes / 128 bits that we can grab for things like KV. Great! -- Martin K. Petersen Oracle Linux Engineering