From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Vasilyev Subject: Re: Solving Nvidia (blob) latency spikes + convert (nvidia's) semaphores into mutexes patches for 331.20 [patches and links provided] Date: Fri, 06 Dec 2013 05:01:44 +0400 Message-ID: <52A121F8.7010607@pavlinux.ru> References: <52A1067D.8070009@pavlinux.ru> Reply-To: pavel@pavlinux.ru Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="JxaTpDeEkqeXXk7CmsLXaRtiP7McXwNTV" Cc: "linux-rt-users@vger.kernel.org" To: jordan Return-path: Received: from imp02.mtu.ru ([62.5.255.19]:56696 "EHLO imp02.mtu.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751150Ab3LFBB5 (ORCPT ); Thu, 5 Dec 2013 20:01:57 -0500 In-Reply-To: Sender: linux-rt-users-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --JxaTpDeEkqeXXk7CmsLXaRtiP7McXwNTV Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable 06.12.2013 03:43, jordan =D0=BF=D0=B8=D1=88=D0=B5=D1=82: >> 1. Blob after 325.xx.xx does not compile and does not work with our RT= patches! >=20 > Sure it does. >=20 > make IGNORE_PREEMPT_RT_PRESENCE=3D1 Wow, I did not know, thanks. I until on 319.xx >=20 >> 3. SFENCE need on SMP systems. Although, delay in 1000 nanoseconds - i= t's awful > Would you care to goto into more detail on this?=20 https://www.kernel.org/doc/Documentation/memory-barriers.txt --=20 Pavel. --JxaTpDeEkqeXXk7CmsLXaRtiP7McXwNTV Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iQIcBAEBCgAGBQJSoSH4AAoJEPtok08Dny2hvIAP/RKNFASbKsndLqMyznOUL+dV t10awYmJRLVcH0flJe/hQlWxS8JVdUF45mIKrOp2RlY8Y2IfxcLmoriMVFLNt1uo ZdAFYE+N7kIjPmSH/O7Y5WFft52BRWO4Mc7gtWsacqUCuSXaZn5WYYo+AcE7uds9 VbbAI3g3X5nhrcpCtBKR//s51C2f29A98wX1o6nV1gRSOaxfjJQa/cqnK/TIM+cp SuOwmZo444kjLJv2TEayTiFQ1Uzge/hPqTjLQvDu3DEewTGTuo5OEMPsTYc769RB OEVJ+/24PjGhTbuQ+ZKnDrJRwx5C77mSORzrtw9UBueVj5gqcVRnJwiqr8RDGPq4 IieQVgaCXWEt6Ql7qswa0QpYBrunSdP4YvioxsGEe0oNUc+RNIN1KzrZSCi68gsR SfXUTgXHoMcJ4xzbHrudI+yF3vxD67EjghvtTgAoeuVT/OgwoWlWpERdCJZhNSt8 jnTTvJNbyLB/lOxSWZ5/o/zvFP6eUJzhocv4rjGPy+530YmaWMqTXKMtDCWIob4G N2ktgb2fVI/c5IKMXXdDu4J71OrxGMxWT9JHDZt9asPx/8vh+xzuOfqWEYswEoJf 8MyEQutqnfNGLlSknVMtD+Pri0H38gC2/8Y75SRdI4cUmGailLqUcOujR2eI8qtL rosMRPPwBJiFlYMORQZB =Dpuo -----END PGP SIGNATURE----- --JxaTpDeEkqeXXk7CmsLXaRtiP7McXwNTV--