From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4D4A8BD8.1060900@domain.hid> Date: Thu, 03 Feb 2011 12:04:56 +0100 From: Gilles Chanteperdrix MIME-Version: 1.0 References: <4D4A84ED.7030604@domain.hid> In-Reply-To: <4D4A84ED.7030604@domain.hid> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-help] RT OS Selection advice for parallel processing List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jan Kiszka Cc: xenomai@xenomai.org Jan Kiszka wrote: > [ And, personally, I don't trust the NVIDIA driver a lot. But that might > be influenced by the fact that latest versions lock up my notebook > regularly after resume and that I filed another obvious locking issue of > the compilable driver stub around mmap_sem without any response from the > vendor. ] Some colleague of mine is using the NVIDIA driver (through the opengl mapping, not CUDA/VDPAU, whatever) on high-end NVIDIA boards in a non RT situation. he definitely observed some huge latencies not due to scheduling issues, when uploading textures to the GPU. We are talking tens of milliseconds here. -- Gilles.