Date: Fri, 13 Oct 1995 14:10:02 -0700 (MST) From: Terry Lambert <terry@lambert.org> To: pete@RockyMountain.rahul.net (Pete Delaney) Cc: jehamby@lightside.com, terry@lambert.org, pete@RockyMountain.rahul.net, freebsd-hackers@FreeBSD.ORG, ports@FreeBSD.ORG, netbsd-ports@netbsd.org Subject: Re: Netscape 2.0beta1 - Port of HotJava to FreeBSD and NetBSD More Usefull? Message-ID: <199510132110.OAA18214@phaeton.artisoft.com> In-Reply-To: <199510130835.AA03397@RockyMountain.rahul.net> from "Pete Delaney" at Oct 13, 95 01:35:40 am
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> > > I heard there was some fairly good progress being made on a Linux port. > > > Is this true? Because if the Linux people have a working version, then a > > > FreeBSD/NetBSD version would be almost trivial from there. > > > > Not so. According to Linus (and Alan Cox), Linux has kernel > > multithreading. > > I suppose a thread library, like SusOS has, is likely necessary, but I > really doubt kernel multithreading is necessary. Any bets? Sun's multithreading as of Solaris is a kernl/user space cooperative model, with n kernel threads being mapped to m user space threads (m >= n). So the only real threading on Solaris is kernel. The SunOS LWP library (a purely aioread/aiowrite/aiowait/aiocancel based task switcher) is supported via the kernel calls for binaray compatability reasons, but an lwp library is not provided for Solaris: you are expected to use the kernel thread model. SVR4.2 and above uses the same model. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.
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