From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56848) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eywIm-0007dX-Jc for qemu-devel@nongnu.org; Thu, 22 Mar 2018 05:14:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eywIh-0008Ie-La for qemu-devel@nongnu.org; Thu, 22 Mar 2018 05:14:28 -0400 Received: from mail-wm0-f47.google.com ([74.125.82.47]:35948) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eywIh-0008Hy-F1 for qemu-devel@nongnu.org; Thu, 22 Mar 2018 05:14:23 -0400 Received: by mail-wm0-f47.google.com with SMTP id x82so14604532wmg.1 for ; Thu, 22 Mar 2018 02:14:23 -0700 (PDT) References: <035198fa-b9e1-6084-d9c2-4d344e7058d7@redhat.com> <397a5759-de49-33a1-300a-67e8b7022678@redhat.com> <84d2ded7-fdd5-0367-ad5d-b0443c4a945a@redhat.com> <20180322051938.GG32362@xz-mi> From: Paolo Bonzini Message-ID: <1b16d3da-cdd6-f18e-ed50-b5a0e25fbc59@redhat.com> Date: Thu, 22 Mar 2018 10:14:19 +0100 MIME-Version: 1.0 In-Reply-To: <20180322051938.GG32362@xz-mi> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] Bug AioContext polling is not implemented on Windows with qemu-system-ppc.exe List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Xu Cc: qemu-devel qemu-devel , Howard Spoelstra On 22/03/2018 06:19, Peter Xu wrote: > +#ifdef CONFIG_LINUX > /* Benchmark results from 2016 on NVMe SSD drives show max polling times around > * 16-32 microseconds yield IOPS improvements for both iodepth=1 and iodepth=32 > * workloads. > */ > #define IOTHREAD_POLL_MAX_NS_DEFAULT 32768ULL POSIX, not Linux. :) I'll fix it myself. Paolo