From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43883) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eyx7N-0000tR-Uf for qemu-devel@nongnu.org; Thu, 22 Mar 2018 06:06:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eyx7K-0002PY-Qk for qemu-devel@nongnu.org; Thu, 22 Mar 2018 06:06:45 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:51428 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eyx7K-0002P6-Mi for qemu-devel@nongnu.org; Thu, 22 Mar 2018 06:06:42 -0400 Date: Thu, 22 Mar 2018 18:06:27 +0800 From: Peter Xu Message-ID: <20180322100627.GI32362@xz-mi> 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> <1b16d3da-cdd6-f18e-ed50-b5a0e25fbc59@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1b16d3da-cdd6-f18e-ed50-b5a0e25fbc59@redhat.com> 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: Paolo Bonzini Cc: qemu-devel qemu-devel , Howard Spoelstra On Thu, Mar 22, 2018 at 10:14:19AM +0100, Paolo Bonzini wrote: > 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. Oops... Thanks. :) -- Peter Xu