From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,6394e5e171f847d1 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2001-09-11 23:42:43 PST Path: archiver1.google.com!newsfeed.google.com!newsfeed.stanford.edu!news.tele.dk!small.news.tele.dk!213.204.128.162!news000.worldonline.se!news010.worldonline.se!not-for-mail Message-ID: <3B9F04E4.31F9EE65@mida.se> From: Mats Karlssohn Organization: MIDA Systemutveckling AB X-Mailer: Mozilla 4.77 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: Ada OS Kernel features References: <9n4euv$t9m$1@slb6.atl.mindspring.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Date: Wed, 12 Sep 2001 08:47:00 +0200 NNTP-Posting-Host: 213.204.132.172 X-Trace: news010.worldonline.se 1000276229 213.204.132.172 (Wed, 12 Sep 2001 07:30:29 WET DST) NNTP-Posting-Date: Wed, 12 Sep 2001 07:30:29 WET DST Xref: archiver1.google.com comp.lang.ada:13040 Date: 2001-09-12T08:47:00+02:00 List-Id: Larry Kilgallen wrote: > > In article <9n4euv$t9m$1@slb6.atl.mindspring.net>, "Brian Catlin" writes: > > What sort of features would be desirable/required in the kernel? > > > Symmetric multi-processing: > > This is the same capability general-purpose operating systems such as NT, VMS, > > etc. have. Each processor is of the same type, and has the same view of memory. > > It then becomes irrelevant which processor is running a particular task. > > You leave out a lot of big systems if you don't support NUMA. Yes, have you seen (or maybe even published :-) any good paper(s) on what kinds of OS support is needed for NUMA machines ? I must have looked in the wrong direction... -- Mats Karlssohn, developer mailto:mats@mida.se Mida Systemutveckling AB http://www.mida.se Box 64, S-732 22 ARBOGA, SWEDEN Phone: +46-(0)589-89808 Fax: +46-(0)589-89809