From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 18 Apr 1997 08:57:15 -0700 From: Eric Dorman eld@jewel.ucsd.edu Subject: porting linux programs and drivers to plan9 Topicbox-Message-UUID: 576099ba-eac8-11e9-9e20-41e7f4b1d025 Message-ID: <19970418155715.j9V_QpEYw5IN1bhUNnOmCgZRL72t6Aqf6_d_WENLvvY@z> >>From jmk@plan9.bell-labs.com Thu Apr 17 22:00:08 1997 wrote: > [edorman wrote:] > >Q: Are Brazil (which apparently supports some Pentium multiprocessor > >boards) and Plan9 sufficiently similar that the Brazil MP stuff would > >be of use? Is is possible to obtain some of the Brazil MP stuff? > > Last October I wrote in 9fans: > > The x86 multiprocessor code runs on Pentium or Pentium Pro systems which > conform to the Intel Multiprocessor Specification, there were no changes ... Doinks!; I thought I had scanned through all the past stuff! Sorry! =:) > Since then we've found one problem caused by the weak memory ordering of the Pentium > Pro, there may be others lurking, time will tell. I can't think offhand of any reason > the same changes couldn't be made to Plan9. It took about two weeks total to have > full SMP implemented on the x86, Plan9 is 'SMP-friendly' and was designed with this > is mind. Compare this to Linux where, after 2 years, the first tentative steps at > allowing multiple processors to run kernel code simultaneously are just being made. This certainly inspires some confidence! Thanks. [xx] > --jim Regards, Eric Dorman edorman@ucsd.edu