Date: Thu, 18 Jan 2007 13:57:55 -0800 From: Maxim Sobolev <sobomax@FreeBSD.org> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Attilio Rao <attilio@FreeBSD.org>, freebsd-current@FreeBSD.org, Ivan Voras <ivoras@fer.hr>, Bruce Evans <bde@zeta.org.au>, freebsd-arch@FreeBSD.org Subject: Re: [PATCH] Mantaining turnstile aligned to 128 bytes in i386 CPUs Message-ID: <45AFED63.7020009@FreeBSD.org> In-Reply-To: <200701181948.l0IJmdfn061671@apollo.backplane.com> References: <3bbf2fe10607250813w8ff9e34pc505bf290e71758@mail.gmail.com> <3bbf2fe10607281004o6727e976h19ee7e054876f914@mail.gmail.com> <3bbf2fe10701160851r79b04464m2cbdbb7f644b22b6@mail.gmail.com> <20070116154258.568e1aaf@pleiades.nextvenue.com> <b1fa29170701161355lc021b90o35fa5f9acb5749d@mail.gmail.com> <eoji7s$cit$2@sea.gmane.org> <b1fa29170701161425n7bcfe1e5m1b8c671caf3758db@mail.gmail.com> <eojlnb$qje$1@sea.gmane.org> <3bbf2fe10701161525j6ad9292y93502b8df0f67aa9@mail.gmail.com> <45AD6DFA.6030808@FreeBSD.org> <3bbf2fe10701161655p5e686b52n7340b3100ecfab93@mail.gmail.com> <200701172022.l0HKMYV8053837@apollo.backplane.com> <20070118113831.A11834@delplex.bde.org> <200701181948.l0IJmdfn061671@apollo.backplane.com>
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Heh, it's so complex, so machine-dependent.... That makes me wonder why we still don't have 3 simple to use instructions that do equivalent of memmove(), memcpy() and memset() all in hardware in the best possible way with the respect of block size, alignment, caches, chipset, you-name-it? Virtually every program would benefit from such instructions. -Maxim
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