Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/5/84; site tove.UUCP Path: utzoo!watmath!clyde!bonnie!akgua!sdcsvax!sdcrdcf!hplabs!hao!seismo!umcp-cs!tove!mark From: mark@tove.UUCP (Mark Weiser) Newsgroups: net.lan Subject: Re: Re: (DoD) InterNet Header Checksum Message-ID: <13@tove.UUCP> Date: Sat, 13-Oct-84 22:00:04 EDT Article-I.D.: tove.13 Posted: Sat Oct 13 22:00:04 1984 Date-Received: Mon, 15-Oct-84 01:48:36 EDT References: <624@ttds.UUCP> <4985@brl-tgr.ARPA> <1723@sun.uucp> <> <222@celerity.UUCP> Organization: U of Maryland, Laboratory for Parallel Computation, C.P., MD Lines: 16 > Considering how slowly the network code works (should have it's own dedicated > cpu!) ... We once thought that the network code took a significant amount of kernel time. We have a vax 780 which serves as arpanet (via LHDH) gateway for about 10 heavily used machines on an ethernet. 4.2 unix kernel profiling says less than 1% of kernel cpu is spent handling network gatwaying. We had been considering putting the gatewaying on a separate cpu (pdp-11/24) but can't see the point of it now. -- Spoken: Mark Weiser ARPA: mark@maryland CSNet: mark@umcp-cs UUCP: {seismo,allegra}!umcp-cs!mark U.S.: Computer Science Dept., University of Maryland, College Park, MD 20742